REQUEST FOR TENDER: 03-1516 CIVIL WORKS YORK

Transcription

REQUEST FOR TENDER:
03-1516
CONTRACT:
CIVIL WORKS
YORK RECREATION & CONVENTION CENTRE CAR PARK
YORK
TENDERS CLOSE:
3.00pm on 1st December 2015
ENQUIRIES
Matthew Thrush
Opus International Consultants Pty Ltd
142 Hasler Road (PO Box 174)
OSBORNE PARK WA 6917
PH (08) 9340 9900
FAX: (08) 9340 9990
INDEX
SECTION
1.0
Conditions of Tendering
including Special Conditions of Tendering
2.0
General Conditions of Contract
Annexure to AS 4000 – 1997 Part A
Separable portion A
Separable portion B
Separable portion C
3.0
Technical Specifications
4.0
Annexures
Form 1 Schedule of prices
Separable portion A
Separable portion B
Separable portion C
Form 2 Tender insurance details
Form 3 Tenderer to inform themselves fully
Form 4 Information to be provided by the Tenderer
Form 5 Equipment/manpower to be used
Form 6 Tenderer’s offer
5.0
Construction Drawings
Drawings:
W-04645.00
Civil Works – YRCC Carpark, York
Page 1 of 1
SECTION 1.0
CONDITIONS OF TENDERING INCLUDING
SPECIAL CONDITIONS OF TENDERING
Civil Works - YRCC Carpark, York
Section 1.0
CONDITIONS OF TENDERING ...................................................................................... 2
CT1 Tender Documents ...................................................................................................... 2
CT2 Tenderer to inform themselves fully .......................................................................... 2
CT3 Schedule of Drawings and Information ..................................................................... 2
CT4 Site Information .......................................................................................................... 2
CT5 Site Inspection prior to lodgement of Tender ............................................................ 2
CT6 Sub-contractors ........................................................................................................... 3
CT7 Contractor to Supply all Plant, Tools and Equipment .............................................. 3
CT8 Customs Duty and Tax ............................................................................................... 3
CT9 Goods and Services Tax (GST)................................................................................... 3
CT10 Lump Sum Contracts ................................................................................................ 3
CT11 Alternative Proposals ................................................................................................ 3
CT12 Price Basis ................................................................................................................. 3
CT13 Expenses .................................................................................................................... 3
CT14 Documents to be lodged with Tender ....................................................................... 4
CT15 Content of Tenders ................................................................................................... 4
CT16 Lodgement of Tenders .............................................................................................. 4
CT17 Tender Opening ........................................................................................................ 5
CT18 Tender to remain valid ............................................................................................. 5
CT19 Incomplete or Non-conforming Tenders .................................................................. 5
CT20 Tender Evaluation .................................................................................................... 5
CT21 Acceptance of Tender ............................................................................................... 5
______________________________________________________________________________________________________________________
Conditions of Tender
Civil Works – YRCC, York
This document is the property of Opus International Consultants Limited.
Any unauthorised employment or reproduction, in full or part is forbidden
Page 1 of 6
CONDITIONS OF TENDERING
CT1 Tender Documents
1.1 The Tender Specification Documents comprise:
♦
Conditions of Tendering including Special Conditions of Tendering
♦
General Conditions of Contract,
♦
Special Conditions of Contract (if any),
♦
Technical specifications
♦
Annexures
♦
Drawings
1.2 Alteration or amendment of the Tender Document is not permitted, unless it is in the
form of a written addendum issued by Opus International Consultants (Australia) Pty
Ltd.
1.3 Tender Documents and any other documents submitted by the Tenderer are not to be
bound, hole-punched or stapled and are to be capable of being photocopied.
CT2 Tenderer to inform themselves fully
2.1 The Tenderer is required to acquaint themselves with all terms and conditions of the
Tender and to inspect the site prior to submitting their Tender. See Form 3 of these
Tender Documents.
2.2 If the Tenderer has any doubts as to the meaning of any portion of the Tender
Documents they are to seek clarification from the Principal. Any enquiries of a
technical nature regarding the work required by the Tender Document are to be
referred to the person nominated in the special conditions of tendering.
2.3 A meeting of any prospective Tenderer may be requested prior to the Tender lodgement
date
CT3 Schedule of Drawings and Information
3.1 A Schedule of Drawings and Information that form part of the Contract is listed in the
Specification.
3.2 Other drawings and details supplied during the term of the Contract will form part of
the Contract.
CT4 Site Information
The Principal does not represent that any information made available, completely
shows the existing site or sub-surface conditions. The Tenderer is to accept full
responsibility for their own interpretations, deductions and conclusions made from the
information provided by the Principal.
CT5 Site Inspection prior to lodgement of Tender
______________________________________________________________________________________________________________________
Page 2 of 6
When specifically detailed in these Tender Documents, the Contractor is to contact the
Principal to arrange a site inspection of all areas covered by this Contract, prior to the
lodgement of any Tender.
CT6 Sub-contractors
If the Tenderer proposes to carry out any work by sub-contract, the names of the
proposed Sub-contractors and details of their work to be undertaken is to be set out in
Form 4.
CT7 Contractor to Supply all Plant, Tools and Equipment
7.1 The Contractor is responsible for providing all necessary plant, tools and equipment to
effectively carry out the works required under this Contract. Non-availability of plant,
tools and equipment will not be accepted as a reason for non-performance. The Contract
is let on the basis that the Contractor will supply these as required.
7.2 Plant, tools and equipment are to be reliable and made available for immediate use when
requested by the Principal. They are also to be made available for inspection by the
Principal during Tender evaluation and/or throughout the duration of the Contract, to
determine their reliability and suitability to successfully undertake the Contract.
CT8 Customs Duty and Tax
The Tenderer is to allow for any Customs Duty and Tax applicable to all imported
materials, plant and equipment required in connection with the Work under the
Contract.
CT9 Goods and Services Tax (GST)
9.1 The Tenderer is to confirm that they are registered with the Australian Taxation Office
for the purposes of Goods & Services Tax (GST).
9.2 The Tenderer is to confirm that GST is included in the tendered price.
CT10 Lump Sum Contracts
The Tenderer is to include in their rate all those costs incurred in carrying out of the
Works, required under the Contract. The Tenderer is to ensure that the rate tendered
in this Contract allows for sufficient labour, plant, tools and equipment to effectively
carry out all Works to the satisfaction of the Principal for the duration of the Contract.
CT11 Alternative Proposals
To ensure consideration, a conforming Tender is to be submitted strictly in
accordance with the Tender Documents. However, the Tenderer may, in addition to
the conforming Tender, submit alternative Tenders that will meet the intent of the
Contract and which would offer some benefit in terms of:
• cost;
• completion date;
CT12 Price Basis
The Lump Sum Tendered price is to remain firm for the period of the Contract.
CT13 Expenses
______________________________________________________________________________________________________________________
Page 3 of 6
The Tenderer is to bear the costs of Tender preparation. The Tenderer is to pay all
fees, bonds or other expenses required for the preparation and submission of the
Tender.
CT14 Documents to be lodged with Tender
14.1 The Annexure contains details of the documents that are to be submitted to satisfy
the Tender requirements.
14.2 Any Tender that is not submitted on the original Tender Forms, provided in the
Annexure, required under this Clause may be rejected.
14.3 Any Tender that is not accompanied by completed documents required under this
Clause may be rejected.
CT15 Content of Tenders
15.1 Tenders are to be submitted on the Tender Forms provided and are to show:
♦ if a Person - full name and address of the Tenderer.
♦ if a Firm - Name of firm, full name and address of manager.
if a Proprietary Company - name of company and the address of the Registered
Office.
15.2 Each Tender is to contain an address for the service of any necessary notices to the
Tenderer in connection with their Tender and any subsequent Contract arising out of
acceptance of the Tender.
♦
15.3 The Tenderer is to sign the Tender, or if the Tenderer is a corporation, have the Tender
appropriately and formally signed, and the signature witnessed.
15.4 The Tender is to be for the whole of the Works unless otherwise stated in the Tender
Documents.
15.5 The Tenderer shall not alter or add to any Tender Document except as required by these
Conditions of Tendering.
CT16 Lodgement of Tenders
16.1 Tenders are to be enclosed in a sealed envelope and endorsed with the name of the
Contract, Tender Number and Closing Date. They are to be lodged by the date and time
given in the advertisement or other invitation for submission of Tenders.
16.2 Tenders may be:
• placed in the Tender Box at Opus International Consultants, 142 Hasler Road,
OSBORNE PARK WA 6017; or
• mailed to Opus International Consultants, Tender Box, PO Box 174, OSBORNE
PARK WA 6917; or
• Emailed to: [email protected]. Originals are to be forwarded in the next
post.
16.3 Tenders that are mailed, or emailed in accordance with section 16.2 will be put in the
Tender Box when received. However, neither the Principal nor its agent will accept
______________________________________________________________________________________________________________________
Page 4 of 6
no responsibility in the event that the Tender is not in the Tender Box at the time
Tenders close.
16.4 At the time of closing only those Tenders in the Tender Box will be regarded as having
been received on time. Late Tenders may not be accepted.
CT17 Tender Opening
17.1 All Tenders will be opened in the offices of Opus International Consultants, First
Floor, 142 Hasler Road, Osborne Park, WA 6017.
CT18 Tender to remain valid
18.1 A Tender placed in the Tender Box is to remain valid and capable of acceptance by the
Principal for a period of ninety days from the close of the Tender period.
CT19 Incomplete or Non-conforming Tenders
19.1 At the discretion of the Principal, incomplete or improperly prepared Tender
Documents may constitute grounds for rejection of Tender.
19.2 The Principal may give the Tenderer the opportunity to provide:
•
any omitted documents;
•
clarification of their Tender in any respect, before final consideration of all
Tenders received.
Provided that:
•
there is no variation of the tendered price unless the Tenderer advises in writing
the reasons for the variation and details of the amended values, and;
•
the Principal in sole discretion considers such a variation to be justified.
19.3 The Tenderer will be advised of the reasons for rejection of their Tender.
CT20 Tender Evaluation
20.1 Where relevant, Tender Evaluation Criteria are contained in the Special Conditions of
Tendering.
20.2 The Principal will use the Evaluation Criteria to assist in determining the ability of the
Tenderer to provide the required level of service and/or complete the Contract Works.
20.3 Notwithstanding any other requirements of the Tender Documents, the Tenderer may
be contacted during Tender evaluation to provide further information. This information
must be made available by such time as the Principal may reasonably specify.
20.4 If the Tenderer fails to submit any of the required information by the specified time,
the Principal may thereafter treat the Tender as non-conforming.
20.5 During the Tender Evaluation, the Principal may require any Tenderer to attend an
interview. Any Tenderer who either fails or refuses to attend the interview may have his
tender rejected.
CT21 Acceptance of Tender
21.1 The Principal:
•
shall not be bound to accept the submitted Tender.
•
reserves the right to accept any Tender or part of any Tender.
______________________________________________________________________________________________________________________
Page 5 of 6
•
shall notify the successful Tenderer in writing accepting their Tender.
21.2 The successful Tenderer shall be required to enter into a formal Contract with the
Principal.
______________________________________________________________________________________________________________________
Page 6 of 6
SPECIAL CONDITIONS OF TENDERING
1. Description and Timing of Works
Works for this contract are included in Section 3.0 Technical Specification.
Please note the contract is to be of separable portions:
o Separable portion A (Barker Street)
o Separable portion B (80-Bay Carpark Only)
o Separable portion C (130-Bay Carpark Only)
The contract will not be for construction of all separable portions. The only combinations
of separable portions that will be considered for inclusion in the contract are:
1.
2.
3.
4.
5.
A; or
B; or
C; or
A and B; or
A and C.
The separable portions A and B or A and C may be constructed consecutively or split to
accommodate other activities on site as directed by the Principal.
2. Tender documents and price inclusions
The Tender shall include:
•
Completed Forms 1 to 6
•
A brief Methodology for completing the work including:
o Draft works programme showing the critical path activities
o The Tenderers current commitments.
o A statement regarding the Tenderers capability to complete the proposed
works within the agreed timeframes and including a list of the plant and
resources that will be committed to the project during the construction phase.
Failure to do so may render the Tender invalid.
The Tenderer's price shall also include for all temporary protection to the finished work, all
travelling allowances, lodging expenses, overtime and any taxes or costs on the job
including pay-roll tax, superannuation, holiday and sick pay, all allowances, awards and
conditions payable to workmen including site allowances, and the training levy.
The tender price shall also include allowances for payment of fees, patent rights, royalties,
overheads, establishment charges and profit, and shall include GST.
Any ambiguity, discrepancy, errors or omissions to the Tender Documents shall be brought
to the notice of the Superintendent for clarification.
Clarification of or alterations to the Tender Documents shall only be made by means of an
Addendum issued by the Superintendent in writing.
3. Evaluation Criteria
The tenders will be evaluated on the following Criteria:
__________________________________________________________________________________________
Special Conditions of Tendering
Civil Works -YRCC Carpark, York
Page 1 of 2
1) Compliance with tender documentation
2) Price
3) The Contractor’s Program of Works showing critical path activities
4) Key Resources and proposed sub-contractors
5) History of completing this complexity of works to program
Tenders will be assessed by Opus International Consultants who will recommend a Tenderer
for the works. Their evaluation will be final.
4. Site Inspection
It is the Tenderer's responsibility to visit and inspect the site, to make his own assessment
of the conditions of the site and the work involved. Unforeseen difficulties for which
provision has not been made in the Tender will in no way relieve the Contractor from the
full execution of the Contract.
A non-mandatory site visit will be held on Wednesday 18 November 2015 at 11:00am. A
representative from Opus International Consultants will be present to answer any queries.
5. Building & Construction Industry Training Levy
The Building & Construction Industry Training Levy as required by the Government of
Western Australia Building & Construction Industry Training Fund & Levy Collection Act
(1990), is payable by the Contractor and must be allowed for in the Tender Price.
6. Project Resource Plan
Tenderers must provide details of their proposed Contractors Representative, QA personnel,
key supervisory staff and key plant if applicable to be used in the works.
7. Health and Safety Plan
The successful Tender must provide a copy of their Health and Safety Plan within 7 days of
being awarded the Contract. The plan is to include project specific details of the Tendered
Contract.
__________________________________________________________________________________________
Special Conditions of Tendering
Civil Works -YRCC Carpark, York
Page 2 of 2
SECTION 2.0
GENERAL CONDITIONS OF CONTRACT INCLUDING
ANNEXURE A
SEPARABLE PORTIONS A
SEPARABLE PORTIONS B
SEPARABLE PORTIONS C
YORK RECREATION & CONVENTION CENTRE CAR PARK
GENERAL CONDITIONS OF CONTRACT
The Australian Standard General Conditions of Contract (AS 4000 - 1997) and the completed
Annexure, Part A, together constitute the “General Conditions of Contract”.
A copy of the Annexure, Part A, as completed follows this page. The AS 4000 - 1997 is not
attached but is deemed to form part of the Contract.
This document shall be read as if AS 4000 - 1997 were inserted herein. While the General
Conditions form part of the Contract, they will not be issued. A copy can be obtained from:
Standards Australia
165 Adelaide Terrace
EAST PERTH WA 6004
Sales Phone 1300 654 646
__________________________________________________________________________________________
General Conditions of Contract –
Page 1 of 1
Civil Works
– YRCC Carpark
SHIRE OF YORK
ANNEXURE to the Australian
Standard General Conditions of
Contract (AS4000-1997)
This Annexure shall be completed and issued as part of the Tender Documents and subject, to any amendments
to be incorporated into the contract, is attached to the General Conditions of Contract and will be read and
construed as part of the contract.
Item
1
Principal
(clause 1)
Principals address:
Shire of York
ACN:
ABN:
1 Joaquina St
YORK WA 6302
……………………………………………………....…..
Phone: (08) 9641 2233
3
Contractor
(clause 1)
……………………………….…..
ACN: …………….. ABN: ………………..
4
Contractors address:
2
.........................................................................................
..........................................................................................
Phone:……….…...... FAX: ……………................
5
Superintendent
(clause 1)
Opus International Consultants (Australia) Pty Ltd
..........................................................................................
ACN: 096 110 262
ABN: 89 096 110 262
6
Superintendent’s Address
142 Hasler Road
OSBORNE PARK WA 6017
Phone: 9340 9900 FAX: 9340 9990
*7
a) Date for practical completion
(clause 1)
N/A.....................................................
OR
b) Period of time for practical completion
- Separable portion A, 2 weeks from possession of site.
- Separable portion B, 6 weeks from possession of site
- Separable portion C, 8 weeks from possession of site
- Separable portions A and B, if consecutive, 7 weeks
from the possession of site.
- Separable portions A and C, if consecutive, 9 weeks
from the possession of site.
(clause 1)
8
Governing law
(page 5,clause 1h)
9
a) Currency
(page 5, clause 1g)
b) Place for payments
(page 5, clause 1g)
Western Australia
If nothing stated, that of the jurisdiction where the
site is located
Australian Dollars
If nothing stated, that of the jurisdiction
..........................................................................................
If nothing stated, the Principal’s address
c) Place of business of bank
..........................................................................................
(page 3, clause 1d)
If nothing stated, the place nearest to where the
Site is located
Civil Works
10
– YRCC Carpark
SHIRE OF YORK
Bills of quantities
(subclause 2.2)
a) Alternative applying
(subclause 2.2)
Alternative 2
If nothing stated, Alternative 1 applies
b) If Alternative 2 applies, is the bill of
quantities to be priced?
(subclause 2)
Yes
If neither deletes, the bill of quantities shall
not be priced
c) Lodgement time
(subclause 2.3b)
..........................................................................................
If nothing stated, 28 days after date of acceptance
of tender
11
Quantities in Schedule of Rates, limits
of accuracy
(subclause 2.5b)
Upper Limit Not Applicable
Lower Limit Not Applicable
12
Provisional sum, percentage for profit
and attendance
(clause 3)
10%
* 13
Contractor’s security
Refer to Part A, B and C of separable portions
* 14
Principal’s security
Refer to Part A, B and C of separable portions
Principal – supplied documents
Document
No. of Copies
1 copy each of
Drawings - W-04645.00 R0
1
As specified in tender documents
16
Time for Superintendent’s direction about
documents
(subclause 8.3)
21 Days
If nothing stated, 14 days
17
Subcontract work requiring approval
(subclause 9.2)
All Works
18
Novation
(subclause 9.4)
Legislative requirements
Subcontractor Particular part of WUC
Not Applicable
a) Those expected
(subclause 11.1)
..........................................................................................
..........................................................................................
b) Identified WUC
(subclause 11.2a)ii)
All WUC
..........................................................................................
15
19
20
Insurance of the works
(clause 16)
Alternative 1
..........................................................................................
If Alternative 1 applies
b) Provision for demolition and removal
of debris
Nil..................................................................................
...............................................$.........................................
Civil Works
– YRCC Carpark
SHIRE OF YORK
OR
....................................................% of the contract sum
21
c) Provision for consultants’ fees
4%...................................................................................
................................................$........................................
OR
4% of the contract sum
d) Value of materials or things to be
supplied by the Principal
Nil
................................................$........................................
e) Additional amount or percentage
..........................................................................................
.................................................$.......................................
OR
% of the total of paragraphs a) to d) in
clause 16
Public liability insurance
(clause 17)
Alternative 1
If Alternative 1 applies
b) Amount per occurrence shall be not less than
$10 million
If nothing stated, than not less than the
Contract Sum
22
Time for giving possession
(subclause 24.1)
within 14 Days
from date of acceptance of Tender
If nothing stated, 14 days
23
Qualifying causes of delay
Causes of delay for which EOTs will not be
granted
(page 3, paragraph b)iii) of clause 1 and
Subclause 34.3)
None................................................................................
..........................................................................................
..........................................................................................
..........................................................................................
* 24
Liquidated damages, rate
(subclause 34.7)
`
Refer to A, B and C of separable portions.
* 25
Bonus for early practical completion
(subclause 34.8)
* 26
Delay damages, other compensable causes
(page 1, clause 1 and subclause 34.9)
27
Defects liability period
(clause 35)
12 months
If nothing stated, 12 months
28
Progress Claims
Civil Works
– YRCC Carpark
SHIRE OF YORK
(subclause 37.1)
a) Times for progress claims
once each month WUC
done to the 25th day of that month
OR
b) Stages of WUC for progress claims
..........................................................................................
..........................................................................................
..........................................................................................
..........................................................................................
29
Unfixed plant and materials for which
Payment claims may be made
(subclause 37.3)
Nil
..........................................................................................
..........................................................................................
..........................................................................................
30
Interest rate on overdue payments
(subclause 37.5)
6% per annum...........................
If nothing stated, 18 % per annum
31
Time for Principal to rectify inadequate
Possession
(subclause 39.7)
28 days............................................
If nothing stated 14 days
32
Arbitration
(subclause 42.3)
Deleted and substituted by clause 42
(Annexure Part b)
a) person to nominate an arbitrator
Chairperson of the Institute of Arbitrators and
Mediators Australia (WA Chapter)
b) Rules for arbitration
If nothing stated:
a) rules 5-18 of the rules of The Institute of
Arbitrators, Australia for the Conduct of
Commercial Arbitrators;
c) Appointing Authority under
UNCITRAL Arbitrator Rules
..........................................................................................
If nothing stated the President of the Australian
Dispute Centre
PART A
Separable Portion A
Barker Street
Contract W-04645
Separable portion
(Clause 1)
No
Description of separable portion
(clause 1)
Item
7
a)
Complete a separate page for each separable portion which
should be numbered appropriately. Any balance of the
Works should also be a separable portion.
1 (one)
Barker Street Upgrade as
Specifications
And drawings W-04645.00
Date for practical completion
(clause 1)
Not applicable
Period of time for
completion
(clause 1)
2 weeks
described in Technical
OR
b)
practical
13
a)
Form
(clause 5)
Retention money
b)
Amount or maximum percentage
value of this separable portion
(clause 5)
5%
c)
d)
If retention moneys, percentage
of each progress certificate
applicable to this separable
portion
(clause 5 and subclause 37.2
Time for provision (except for
retention moneys)
If nothing stated, 5% of value of this separable portion
10 %
If nothing stated, 10% until the limit in Item 13(b)
28 days
If nothing stated, within 28 days after date of acceptance
of tender
(clause 5)
e)
Additional security for unfixed
plant and materials
Nil
$
(subclauses 5.4 and 37.3)
f)
Contractor’s
security
upon
certificate of practical completion
is reduced by
(subclause 5.4)
50%
If nothing stated, 50% of amount held
Page 1 of 2
% of amount held
Contract W-04645
Separable Portion A cont.
14
a)
Form
(clause 5)
Not applicable
b)
of value of this separable portion
(clause 5)
Nil
If nothing stated, nil
c)
Time for provision
(clause 5)
Not applicable
of tender
d)
Principal’s security upon
certificate of practical
completion is reduced by
(subclause 5.4)
24
50% of amount held
If nothing stated, 50% of amount help
(subclause 34.7)
Bonus for early practical
completion
(subclause 34.8)
25
a)
$
860.00
Not applicable
Rate
per day
b)
per day
$
per day
Limit
$
OR
% of value of separable portion
If nothing stated, there is no waiver
26
Delay damages,
other compensable causes
(page 1, clause 1 and
Subclause 34.9)
Page 2 of 2
PART B
Separable Portion B
80-Bay Carpark only
Contract W-04645
Separable portion
(Clause 1)
No
(clause 1)
Item
7
a)
should be numbered appropriately. Any balance of the
Works should also be a separable portion.
2 (two)
80-Bay Carpark construction as described in Technical
Specifications
(clause 1)
Not applicable
Period of time for
completion
(clause 1)
6 weeks from possession of site
OR
b)
practical
13
a)
Form
(clause 5)
Retention money
b)
(clause 5)
5%
c)
d)
portion
retention moneys)
10 %
28 days
of tender
(clause 5)
e)
plant and materials
Nil
$
f)
Contractor’s
security
upon
is reduced by
(subclause 5.4)
50%
Page 1 of 2
% of amount held
Contract W-04645
Separable Portion B cont.
14
a)
Form
(clause 5)
Not applicable
b)
(clause 5)
Nil
c)
Time for provision
(clause 5)
Not applicable
of tender
d)
(subclause 5.4)
50% of amount held
24
(subclause 34.7)
completion
(subclause 34.8)
25
a)
$ 860
per day
Not applicable
Rate
per day
b)
$
per day
Limit
$
OR
26
Delay damages,
Subclause 34.9)
Page 2 of 2
PART C
Separable Portion C
130-Bay Carpark only
Contract W-04645
Separable portion
(Clause 1)
No
(clause 1)
Item
7
a)
should be numbered appropriately. Any balance of the Works
should also be a separable portion.
3 (three)
130-bay carpark only as
Specifications
(clause 1)
Not applicable
Period of time for
completion
(clause 1)
8 weeks
described
in
Technical
OR
b)
practical
13
a)
Form
(clause 5)
Retention money
b)
(clause 5)
5%
c)
d)
portion
retention moneys)
10 %
28 days
of tender
(clause 5)
e)
plant and materials
Nil
$
f)
Contractor’s
security
upon
is reduced by
(subclause 5.4)
50%
Page 1 of 2
% of amount held
Contract W-04645
Separable Portion C cont.
14
a)
Form
(clause 5)
Not applicable
b)
(clause 5)
Nil
c)
Time for provision
(clause 5)
Not applicable
of tender
d)
(subclause 5.4)
24
50% of amount held
(subclause 34.7)
completion
(subclause 34.8)
25
a)
$
860.00
Not applicable
Rate
per day
b)
per day
$
per day
Limit
$
OR
26
Delay damages,
Subclause 34.9)
Page 2 of 2
SECTION 3.0
TECHNICAL SPECIFICATIONS
Technical Specification
Section 3.0 TECHNICAL SPECIFICATION
INDEX
GENERAL ................................................................................................................... 4
2
1.1
Scope ............................................................................................................................ 4
1.2
Description of Work ................................................................................................... 4
1.3
Location ....................................................................................................................... 4
1.4
Construction Drawings.............................................................................................. 5
1.5
Standard of Work ....................................................................................................... 6
1.6
Workplace safety ........................................................................................................ 6
1.7
Plant and Equipment ................................................................................................. 6
1.8
Contractor’s Programme ........................................................................................... 6
1.9
Site Meetings ............................................................................................................... 7
1.10
Inspections (HOLD POINTS) .................................................................................... 7
1.11
Survey Control and Setting Out ................................................................................ 7
1.12
Dimensions and Existing Conditions........................................................................ 8
1.13
As Constructed Drawings .......................................................................................... 8
1.14
Power Supply .............................................................................................................. 9
1.15
Water Supply .............................................................................................................. 9
1.16
Storage of Plant, Equipment and Materials ............................................................ 9
1.17
Traffic Control (Separable Portion A) ..................................................................... 9
1.18
Working Days and Hours ........................................................................................ 10
1.19
Haulage Routes ........................................................................................................ 11
1.20
Dust Control and Air quality ................................................................................... 11
1.21
Dilapidation Surveys ............................................................................................... 12
1.22
Working Methods ..................................................................................................... 12
1.23
Cessation of Work/Stand down of Resources........................................................ 12
1.24
Adjacent Residences ................................................................................................. 13
1.25
Testing and Auditing................................................................................................ 13
1.26
Utilities ...................................................................................................................... 16
1.27
Additional Information/Instruction....................................................................... 17
CLEARING ....................................................................................................... 18
2.1
General ...................................................................................................................... 18
2.2
Road Construction.................................................................................................... 19
2.3
Grubbing ................................................................................................................... 19
2.4
Spoiling of Vegetation and Waste Material........................................................... 19
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3
4
2.5
Damaged Areas ........................................................................................................ 19
2.6
Clearing Areas .......................................................................................................... 19
EARTHWORKS............................................................................................... 19
3.1
General ...................................................................................................................... 19
3.2
Extent of Work .......................................................................................................... 20
3.3
Topsoil ....................................................................................................................... 20
3.4
Excavations ............................................................................................................... 21
3.5
Embankment Construction...................................................................................... 22
3.6
Sub-grade .................................................................................................................. 24
3.7
Excess Spoil ............................................................................................................... 25
3.8
Tolerances ................................................................................................................. 25
3.9
Testing ....................................................................................................................... 25
3.10
Finish ......................................................................................................................... 26
3.11
Quality Records ........................................................................................................ 26
STORMWATER DRAINAGE ...................................................................... 27
4.1
General ...................................................................................................................... 27
4.2
Australian Standards ............................................................................................... 27
4.3
Materials ................................................................................................................... 27
4.4
Setting Out ................................................................................................................ 28
4.5
Excavation ................................................................................................................ 29
4.6
Drain Construction .................................................................................................. 31
4.7
Manholes ................................................................................................................... 31
4.8
Gully Entry Pits ........................................................................................................ 32
4.9
Side Entry Pit (not used) .......................................................................................... 32
4.10
Step Irons .................................................................................................................. 32
4.11
Headwalls and Endwalls ......................................................................................... 32
4.12
Stone Pitching ........................................................................................................... 32
4.13
Backfilling Of Pipe Trenches ................................................................................... 32
4.14
Backfilling under Pavements .................................................................................. 33
4.15
Testing Of Trench Backfill Density ......................................................................... 33
4.16
As Constructed Survey and Documentation .......................................................... 33
4.17
Cleaning Up .............................................................................................................. 33
4.18
Quality Assurance Records ..................................................................................... 34
4.19
Tolerances ................................................................................................................. 34
4.20
Strip Drain ............................................................................................................ 34
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4.21
5
6
ROAD WORKS ................................................................................................ 35
5.1
General ...................................................................................................................... 35
5.2
Australian Standard ................................................................................................ 35
5.3
Basecourse to be supplied by the Principal ............................................................ 35
5.4
Construction of Base-course.................................................................................... 35
5.5
Quality Assurance Records ..................................................................................... 38
5.6
Quality Assurance Auditing .................................................................................... 38
BITUMINOUS SURFACING ............................................................................. 40
6.1
7
8
PVC Pipes and Fittings............................................................................................. 34
General ....................................................................................................................... 40
KERBING AND FOOTPATHS.......................................................................... 47
7.1
General ...................................................................................................................... 47
7.2
Extent of Work .......................................................................................................... 47
7.3
Materials ................................................................................................................... 47
7.4
Kerbing ...................................................................................................................... 48
7.5
Footpaths................................................................................................................... 50
MISCELLANEOUS CONSTRUCTION............................................................ 52
8.1
Other Services ............................................................................................................. 52
8.2
Existing Works............................................................................................................. 52
8.3
Signs and Line marking ............................................................................................... 52
8.4
Bollards....................................................................................................................... 52
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GENERAL
1.1
Scope
This specification describes the work and sets out the general requirements
that are not covered elsewhere in the Specifications.
1.2
Description of Work
The works are located at the site of York Recreation and Convention Centre,
York, and involves the Civil Works associated with the upgrade and sealing
of Barker Street and upgrade and sealing of the gravel parking area to a 80
or 130 bay car park and associated drainage.
The work involves:
-
Clearing, removal and spoiling of vegetation, rubbish and existing waste
materials prior to the commencement of earthworks and drainage;
-
Earthworks including cut to fill, cut to spoil, embankment foundation
preparation and embankments construction for roadwork.
-
Construction of new roads including the construction of sub-grade, subbase and base-course pavements layers; drainage, kerbing and surfacing,
o Two coat seal surfacing of Barker Street as specified on plans.
o Two coat seal surfacing of car-parks.
-
Construction of reinforced concrete footpaths.
-
Supply and installation of drainage infrastructure
-
Verge and swale construction, including rock pitching, supply of topsoil,
back filling and stabilisation.
-
Installation of road furniture, line marking and signage as required.
-
Location of existing services and liaison with public utility providers
regarding service relocations as required.
-
The works are to be tendered as separable portions;
o Separable portion A – Barker Street
o Separable portion B – 80 Bay Carpark only
o Separable portion C – 130 Bay Carpark only
The separable portions A and B or A and C may be constructed consecutively
as one programme or split as directed by the Principal, with a potential
interval period between the car-park and Barker Street. The decision as to
which Separable Portions will be included in the Contract is at the sole
discretion of the Principal.
1.3
Location
The works are located at York Recreation and Convention Centre, York, WA
6302. The entrance to Barker Street is located off Forrest Street.
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1.4
The following drawings form part of the Contract Documentation and shall
be read in conjunction with the AS4000 General Conditions of Contract,
Special Conditions and Specifications and Appendices.
Drawing No.
ENTRANCE ROAD ONLY (Separable Portion A)
COVER PAGE
W-04645.00-C00
LOCALITY PLAN AND SHEET INDEX
W-04645.00-C01
OVERALL PLAN OF WORKS
W-04645.00-C001
BARKER STREET – PLAN
LONGITUDINAL SECTION
OF
WORKS
AND
W-04645.00-C002
BARKER STREET – CROSS SECTION
W-04645.00-C003
BARKER STREET – SERVICES PLAN
W-04645.00-C004
80 BAY CARPARK ONLY (Separable Portion B)
COVER PAGE
W-04645.00-C00
LOCAILTY PLAN AND SHEET INDEX
W-04645.00-C01
W-04645.00-C100
GRADING PLAN – SHEET 1 OF 2
W-04645.00-C101
W-04645.00-C102
KERB PROFILES – SHEET 1 OF 1
W-04645.00-C103
PAVEMENT AND LINEMARKING PLAN
W-04645.00-C104
TYPICAL DETAILS
W-04645.00-C105
SERVICES PLAN
W-04645.00-C106
130 BAY CARPARK ONLY (Separable Portion C)
COVER PAGE
W-04645.00-C00
LOCAILTY PLAN AND SHEET INDEX
W-04645.00-C01
W-04645.00-C200
W-04645.00-C201
W-04645.00-C202
W-04645.00-C203
W-04645.00-C204
PAVEMENT AND LINEMARKING PLAN
W-04645.00-C205
TYPICAL DETAILS
W-04645.00-C206
SERVICES PLAN
W-04645.00-C207
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1.5
Standard of Work
All materials and workmanship used in the execution of the Contract Works
shall comply with the requirements of the Construction Drawings,
Specifications and nominated standards.
1.6
Workplace safety
All work shall be carried out with due regard for the safety of employees and
the general public and in compliance with all relevant Acts and Regulations.
The Contractor shall comply with the Occupational Safety and Health Act
1984 and the Occupational Safety and Health Regulations 1996 and any
amendments that may be made.
The Contractor shall conduct site inductions for all employees, SubContractors employees and visitors to the site to make them aware of all
potential hazards and the measures to minimise accidents.
1.7
The Contractor should refer to WorkSafe WA for Codes of Practice relating
to specific matters such as, but not limited to, First Aid, Workplace Amenities
and Excavations.
Plant and Equipment
The Contractor shall supply all plant and equipment necessary to carry out
the works and shall not remove from the site any plant and equipment, which
will hinder or delay the progress of the work, without the written approval of
the Superintendent’s Representative.
Plant shall be of adequate capacity and rating to carry out work specified. The
Contractor shall remove from the work any plant or equipment considered
by the Superintendent to be unsuitable for carrying out the work in
accordance with the specification.
If at any time during the progress of the Works, plant equipment or labour
appear to the Superintendent to be insufficient, inefficient or inappropriate
to secure the quality of work required, or the proper rate of progress, the
Superintendent may direct the Contractor at his cost to increase all
abovementioned deficiencies to bring the project back on track and quality
up to standard.
1.8
Contractor’s Programme
The Contractor shall submit to the Superintendent, within one week from
acceptance of Tender, a Construction Programme for each separable portion
detailing:
-
Start and completion dates for each main activity or task such as
clearing, earthworks, drainage, pavement construction, sealing and so
on.
-
The critical path including float times
The Contractor shall review and update the programme every week and
promptly provide each update to the Superintendent.
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The Construction Programme will be used by the Superintendent’s
Representative to monitor the Contractor’s progress and performance.
1.9
Site Meetings
No work is to commence until pre-start requirements have been met and a
start-up meeting has been held between the Contractor, the Principal, and
the Superintendent.
The Contractor or Contractor’s representative and the Superintendent shall
be present on the site at agreed weekly intervals to discuss the progress of the
works.
The Contractor shall arrange for the attendance of such other members of
Contractor staff and representatives of Sub-Contractors and suppliers as may
be required. When requested by the Contractor or the Superintendent, the
Principal or Principal’s representative will also attend such meetings.
The Superintendent will chair such meetings, prepare records of the
proceedings, and will provide copies to the Principal, and the Contractor.
The Contractor will provide a suitable location on site to conduct such
meetings such as site office or sheltered area.
1.10 Inspections (HOLD POINTS)
The Contractor is to contact the Superintendent to arrange joint inspections
with the Shire of York at the following stages. Work is not to proceed past
these HOLD POINTS until approval is given by the Superintendent. Failure
to do so may result in rework.
Inspections are required at the following stages:
Site vegetation, set out for clearing and at completion of clearing.
Installation of erosion control measures.
Preservation measures installed for vegetation or heritage items.
Drainage line installation prior to backfill.
Completion of sub-grade preparation.
Completion of road pavement construction, separate inspections for sub
base and base course.
Road sealing course, immediately before application and after.
Establishment of line and level for kerb placement.
Any other issues where the Contractor may wish to carry out works that
differ from the specifications.
Material compliance certificates
Practical Completion.
1.11 Survey Control and Setting Out
General
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The Contractor will employ a licensed surveyor who is eligible for
Membership of the Institution of Engineering & Mining Surveyors Australia
Incorporated.
The Surveyor will be available for the entire period of the Contract to ensure
true and proper setting out of the works as is necessary for the satisfactory
execution of work to the specified tolerances. The Surveyor shall also be used
for all audit testing of pavement layers levels as specified.
Permanent control marks and temporary benchmarks have been located
within the site and if disturbed will be required to be replaced by the surveyor
at the Contractor’s expense.
The Contractor’s surveyor shall use the permanent control marks for the
setting out of the road alignment to an accuracy of ± 0.005 metres for line
and distance.
The Contractor is responsible for replacing any pegs disturbed by the works
under the Contractor’s control.
Supplied Information
Setting out information supplied by the Superintendent shall consist of
electronic data in 3D DXF format.
1.12 Dimensions and Existing Conditions
The Contactor is responsible for checking all pertinent dimensions and
existing conditions on or about the site before commencement of work. Any
work component shown on the Construction Drawings but not included in
this Specification, or included in this Specification but not shown on the
Construction Drawings, shall be deemed to be part of the Contract.
1.13
As Constructed Drawings
The Contractor shall, prior to Practical Completion of the works, provide the
Superintendent’s Representative with
One full set of approved Construction Drawings with any amendments
marked in red. These plans must be signed and endorsed by the
Contractor and the Superintendent.
One full set of the Surveyors as constructed drawings. These plans must
be signed by the Surveyor.
In addition an electronic format (dwg or dxf) file of the surveyor’s asconstructed survey must be supplied in GDA94, MGA zone 50 to the Shire
of York.
A pdf version of the original Surveyor’s as constructed survey
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1.13.1 All external drainage data is to be collected in accordance with D-Spec Drainage
Specification version 7, Feb 1, 2010 – “Consultant and Developer Specifications for
the Delivery of Digital Data to Local Governments and Authorities”.
1.13.2 All external road data is to be collected in accordance with R-Spec Road
Specification version 2.1, Aug 1, 2011 – “Consultant / Developer Specifications for
the Delivery of Digital Data to Local Government Authorities”.
Practical completion will not be granted until all as constructed information
and all outstanding defects are completed and approved by the Shire of York.
1.14 Power Supply
The Contractor shall make all necessary arrangements and pay all costs
associated with the supply of power for construction purposes.
1.15 Water Supply
A water supply is available from a standpipe located at the Shire of York
works depot, located at on Maxwell Street. Contact Allan Rourke (Works
Manager, Shire of York) to confirm arrangements for use of this supply prior
to submission of tenders. The Principal does not guarantee any availability
of a water supply at the Shire of York works depot where such is requested
after tender close.
The Contractor shall make all necessary arrangements and pay all costs
associated with the supply of suitable water for construction purposes.
Water used for pavement construction shall have a sodium chloride
concentration of less than 3500 milligrams per litre as determined by MRWA
Test Method CH 4-68, Determination of Salinity of Soil and Water.
The Contractor shall be responsible for investigating the feasibility and
availability of suitable water for the works. Potable water is not to be used for
general construction purposes.
The Contractor shall comply with any water restrictions imposed by the
Water Corporation.
1.16 Storage of Plant, Equipment and Materials
Arrangements for storage of plant, equipment and materials either on site or
at the Shire of York works depot can be discussed with Allan Rourke (Works
Manager, Shire of York) prior to submission of tenders. The Principal does
not guarantee any availability of a storage areas either on site or at the Shire
of York works depot where such is requested after tender close.
1.17 Traffic Control (Separable Portion A)
General
The Contractor is responsible for all traffic management measures relating to
the Contract Works. The traffic management measures required for the
Contract Works may include lane closures, traffic diversions, signage, other
temporary measures and public communication. A minimum of one traffic
lane to be maintained at all times throughout the contract.
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The Contractor must supply all traffic control devices, including signs, lights,
cones and barricades, and erect and maintain all such devices in good
condition for the duration of the works. The Contractor must provide MRWA
accredited Traffic Controllers as required to ensure the safety of motorists,
road users and workers.
Standards and Codes of Practice
All work and traffic control measures must be performed in accordance with
the following Code of Practice and Australia Standards:
• MRWA Traffic Management for Roadworks, Code of Practice 2004
• AS 1742.1 – 2003 Manual of Uniform Traffic Control Devices
Part 1 – General Introduction and Index of Signs
• AS 1742.3 – 2009 Manual of Uniform Traffic Control Devices
Part 3 – Traffic Control for Works on Roads
Any road closures shall be in accordance with the Local Government Act
sections 3.50, 3.50A, 3.51 and 3.52 and the Contractor shall apply to the Shire
of York for approval to close the road at least 21 days before the closure is
required.
Traffic Management Plans
The Contractor is responsible for preparation, implementation and auditing
of a traffic management plan for each respective stage of the Contract
Works.
The Traffic Management Plan(s) must be prepared by an accredited person
and submitted to the appropriate road controlling authority and
Superintendent five days prior to the proposed commencement of works.
The Superintendent and road controlling authority may review, amend,
direct or take whatever steps considered necessary to properly provide for the
safety of road users and others.
The Contractor is to ensure that as a minimum, a single line of controlled
traffic is able to traverse the construction site at all times at a minimum speed
of 40km/hr and is able to be trafficked by a 36.5m long fully laden semitrailer.
Indemnity
The Contractor shall indemnify the Principal and Superintendent against all
claims, demands, proceedings, costs and expenses incurred in consequence
of any action arising out of third party claims in respect to traffic control.
1.18 Working Days and Hours
Normal working days are Monday to Friday and do not include Saturdays,
Sundays and Public Holidays.
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Normal working hours are between 7.00 a.m. and 6.00 p.m. but for the
purpose of variations and extensions of time to the Contract shall consist of
8 hours per working day.
Where the Contractor considers it essential to work outside normal working
hours or normal working days he must request in writing prior approval from
the Superintendent and this approval, if granted, shall not be construed as a
variation.
For the purpose of Liquidated Damages assessment, a day will mean any 24
consecutive hour day including Saturdays, Sundays and statutory holidays.
1.19 Haulage Routes
Maintenance
Haulage routes shall be managed and maintained to minimise the impact on
the appropriate road controlling authority.
Haulage routes shall be inspected by the Superintendent to record the
current standard of the road.
Any subsequent deterioration of Council roads, drainage or other road assets
other than general wear and tear shall be repaired at the Contractor’s
expense.
Suspension of Cartage on Haulage Routes
The road controlling authority may direct suspension of cartage on haulage
routes for a period when wet weather or other adverse conditions affecting
the road surface or drainage that could compromise the road integrity and
public safety.
If work cannot proceed on other activities, the time for suspension of the
Contract shall be extended by the cumulative total of all periods of cessation
of work directed by the Superintendent which are within the specified
working hours.
1.20 Dust Control and Air quality
The Contractor is responsible for controlling and minimising the generation
of dust on the site. Particular care shall be taken to protect users of the
adjacent facilities (including but not limited to bowls, cricket and tennis)
from dust created by the construction works.
The Contractor shall comply with the provisions included in "Land
Development Sites and Impacts on Air Quality – A guideline for the
prevention of dust and smoke pollution from land development sites in
Western Australia" published by the Department of Environmental
Protection in November 1996.
The Contractor shall familiarise oneself with the above publication and allow
in the lump sum tender for all measures specified therein. These may include
close control of the works, watering of the site, storage of wind fencing
materials on site, stabilisation of excavated materials and issuing of advisory
notices to affected residents.
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The burning of vegetation or other materials on site is not permitted.
1.21 Dilapidation Surveys
Prior to commencement of works on site, the Contractor shall undertake structural
dilapidation surveys of the following facilities:
•
York Recreation and Convention Centre
•
Hockey Club
•
Bowling Greens
•
Tennis courts
1.22 Working Methods
The Contractor shall adopt orderly working methods that minimise dust
generation. The Contractor shall submit to the Superintendent, prior to work
commencing, a detailed works programme, dust and adverse weather
conditions management programme. This programme will show the
equipment, methods, haul routes, timings and dust control measures and
shall be based on progressive completion and stabilisation of areas.
The Contractor shall minimise the haul routes used during the works by
careful programming. The haul routes shall be marked and traffic controlled
onto these routes.
The Contractor shall be responsible to control dust and shall adjust working
methods as necessary to maintain any dust within the limits prescribed by
the Environmental Protection Agency.
The requirements of all Legislation, Regulations and relevant Local
Government by-laws and in particular the Noise Abatement Act 1979 must
be complied with in the delivery of the Contract Works.
The Contractor shall at all times comply with all statutes, regulations and bylaws relating to the protection of the environment.
1.23 Cessation of Work/Stand down of Resources
The Superintendent may direct the Contractor to cease operations and standdown all resources for events including but not limited to; excessive dust due
to wind, total fire bans imposed by Local Authority, Department of
Conservation & Land Management and Bush Fires Board, or directions by
Authorities. Extensions of time will be granted for such stand-downs.
If applicable and where directed by the Superintendent during the period of
cessation of work the Contractor shall continue to operate the dust
suppression measures specified and endeavour to suppress dust as much as
possible.
During the period of cessation of work the Contractor shall keep all
machinery and supplies on site and maintain his capability to restart work at
the first opportunity.
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The time for completion of the Contract shall be extended by the cumulative
total of all periods of cessation of work directed by the Superintendent which
are within the specified working hours.
1.24 Adjacent Residences
The Contractor shall ensure particular attention is given to plant, equipment
and manpower operations so as to avoid causing a nuisance to adjacent
residences due to the works. The Contractor shall be fully responsible for any
damage caused, particularly damage that may be caused by vibratory
compaction equipment.
Notice to residences
Residents likely to be directly affected by the works, as well as the York
District High School, shall be notified of the works proposed by a letter drop
14 days prior to the commencement of works. This notice shall include the
following.
-
The name of the Principal, Consulting Engineer and Contractor
-
Date of commencement of the works
-
Expected completion date
-
Contact details for the contractor’s representative to whom any queries
or concerns can be directed.
1.25 Testing and Auditing
General
The Contractor is responsible for the sampling, testing and patching of test
holes as necessary to determine earthworks, sub-grade and pavement
densities and conformance to material specification.
The test methods specified are Main Roads Western Australia (MRWA) test
methods series and are available on request.
Other testing and auditing that is required of the Contractor such as finished
levels, alignment and material specifications are as detailed in Table 1.23 A
and B. Sampling procedures for soil and granular pavement materials shall
conform to MRWA Test Method WA 100.1.
Traceability
The Contractor shall provide traceability for all manufactured products
incorporated into the works in accordance with AS/NZS ISO 9001 for
identification and traceability. The trace shall start at the supplier and finish
at the location where product is incorporated into the Works.
If the manufacture of products off Site forms part of the Contract, the
Contractor must provide the Superintendent`s Representative with the name
and address of the manufacturer and the date of commencement of
manufacture, at least seven (7) days prior to the commencement of
manufacture of such product(s). The traceability records shall be considered
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as built information and forwarded to the Superintendent`s Representative
in accordance with the Contract.
Setting out, Tolerances
Routine auditing of the setting out and construction over and above the
quality assurance schedule may be called for from time to time by the
Superintendent at each stage of the roadworks.
All such audits shall be arranged for by the Contractor at locations directed
by the Superintendent with an independent licensed surveyor.
All audits shall be paid for by the Contractor directly to the licensed
surveyor.
The Contractor may claim the cost of such survey audits requested by the
Superintendent should the surveyor indicate that the work is in accordance
with the Contract.
Where the audit survey indicates that the work is not in accordance with the
contract, the cost of the survey shall be borne by the Contractor.
Test Methods, Materials
(i)
Density
For the works in general, density shall be measured insitu by use of a
nuclear moisture/density meter in accordance with Main Roads Test
Method WA 324.2, "Dry Density and Moisture Content: Nuclear
Method". All measurements shall be made using the direct
transmission mode.
If the insitu density is outside the range of densities 1.3-3.05t/m³ for
which the nuclear moisture/density meter can be calibrated then Main
Roads Test Method WA 324.1, "Dry Density: Sand Replacement
Method" shall be used.
For the purpose of measuring conformance of embankment
foundation, embankment, sub-grade, sub base and base-course
densities, the insitu density shall be expressed as a percentage of the
maximum dry density. This percentage shall be calculated in
accordance with Main Roads Test Method WA 134.1, "Dry Density
Ratio (Percent) of a Soil".
The maximum dry density shall be determined by Main Roads Test
Method WA 133.1 or WA 133.2, "Dry Density/Moisture Content
Relationship: Modified Compaction". Where the pavement material
is stabilised or modified with Portland Cement, the maximum dry
density determinations shall be commenced two (2) hours after
mixing is complete and shall be completed within a further two (2)
hours.
(ii)
Moisture Content
The Moisture content shall be determined using Main Roads Test
Method WA 110.1 "Soil and Granular Material Moisture Content:
Convection Oven Method". If it is not practicable to use this method,
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then Main Roads Test Method WA 110.2 "Soil and Granular Material
Moisture Content: Microwave Oven Method" or Main Roads Test
Method WA 324.2 "Dry Density and Moisture Content: Nuclear
Method" may be used. However, correlation must be established with
Main Roads Test Method WA 110.1 before proceeding with the
subsidiary methods WA 110.2 and WA 324.2.
Insitu Density
The conformance of any section of the Works with respect to density shall be
determined by comparing the Characteristic Dry Density Ratio of the lot and
the limits specified in the Technical Specification.
The dry density ratio shall be determined at the number of locations per lot
defined in Table 1.23A. The locations shall be selected in accordance with
Main Roads Test Method WA 100.1: "Random Sample Site Location".
Insitu Moisture
The conformance of any lot of the Works with respect to insitu moisture shall
be determined by comparing the Characteristic Moisture Content of the lot
and the limits specified in the Technical Specification.
The moisture contents shall be determined at the number of test locations
per lot defined in Table 1.23A. The test locations shall be selected in
accordance with Main Roads Test Method WA 100.1: "Random Sample Site
Location".
TABLE 1.23A – DENSITY AND COMPACTION TEST
REQUIREMENTS
Works Component
Culvert, Pipe Bedding and backfill
Embankment Foundation
Test Requirements
1 per layer per drain line.
Test at each layer, near
manholes and along line.
6 per lot(1)
Embankment Construction, Fill, Trench Backfill
6 per lot
Sub-grade Preparation
6 per lot
Sub-base Layer
9 per lot
Base-course
9 per lot
(1) The principles used to define the limits of any lot for the contract are
defined in Main Roads Specification 201 Quality Systems. A lot is defined
as follows:
a) The maximum size of a lot is limited to the quantity of work that is
subject of a single conformance decision;
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b) The whole of the works included in the lot shall be continuous;
c) The lot has been produced using the same work process;
d) The lot has been brought to completion at the same time; and
e) The lot shall appear to be of a constant quality without obvious
changes in attribute values, whether or not these attributes form part
of the acceptance criteria.
TABLE 1.23B – OTHER TESTING REQUIREMENTS
Works Component
Test Requirements
Sub-grade Preparation
Each occurrence is to be
quantified and located
on road plan.
Removal of unsuitable material
Finished level, alignment and width
Marked up road plan @
20m intervals
Sub-base Layer
Finished level, depth of layer, alignment and Marked up road plan @
width.
20m intervals
Tests for Compliance
specification
with
Material
1 Test / 500m3 of
material
Base-course Layer
Finished level, depth of layer, alignment and Marked up road plan @
width.
20m intervals
Tests for Compliance
specification
with
Material
1 Test / 500m3 of
material
1.26 Utilities
The location of all existing utilities and services shown on the Construction
Drawings will be regarded as indicative only, The Contractor must ascertain
and verify on site by whatever means the exact location of the utilities from
the respective utility provider, Department or Authority, prior to
commencing works in the area.
The Contractor must make the appropriate allowances in the Contractor’s
Works Program for all necessary liaison, relocation if required and
programming with service authorities as required for the provision of
installation by service authorities during the Works. The Contractor must
reinstate and make good and backfill service trenches to the relevant
restoration and reinstatement specification for local government in Western
Australia.
No utility, private or public, may be moved to accommodate the Contractor's
equipment or its method of operation when the utility does not interfere with
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the Works, unless such removal is at the expense of the Contractor, and in
each case subject to the approval of the utility authority concerned.
The Contractor must take all precautions necessary to prevent damage to
existing fencing, drainage structures, telephone and power lines, water mains
and services and other facilities and features during the Contract period. The
Superintendent may arrange for the repair of damage not made good by the
Contractor and the cost of such repair will be deducted from payments due
to the Contractor.
1.27 Additional Information/Instruction
The Contractor shall give immediate notice of any instruction or
clarification required from the Superintendent if such instruction or
clarification is needed to avoid delaying the works.
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2
CLEARING
2.1
General
Clearing shall be limited to that required to carry out the works detailed on
the Construction Drawings.
Clearing involves the removal and disposal of all vegetation including, but
not limited to, all trees standing or fallen, tree stumps, brush, shrubs, scrub,
grasses, other vegetation material, rubbish, debris and boulders from the
Road Reserves as shown on the drawings and detailed in this Specification.
Clearing will also include the demolition, removal and disposal of nonvegetation material such as fences, retaining walls, culverts, stormwater
structures, stone pitching, rubbish and site debris etc.
Clearing lines including all of the above must be set out by the Contractor and
approved by the Superintendent’s Representative prior to commencement of
any clearing.
The rates and prices for clearing shall be inclusive of:
-
Demolition and breaking up.
-
Removing existing driveways and re-contouring land
-
Tree felling, uprooting of bushes, trees, hedges and other vegetation,
grubbing out remnant stumps and roots and filling and compacting holes left
after grubbing out.
-
Chipping, splitting, cutting, mowing, slashing, grinding, mulching or
pulverising vegetation.
-
Treatment and processing disease-free and weed-free vegetation for
incorporation into topsoil.
-
Cutting and stacking of chip-logs and saw logs.
-
Branch lopping and treatment of cut surfaces.
-
Disposal of debris, rubbish and the like off-site.
-
Preservation of individual trees, groups of trees and other vegetation to be
retained as designated on the Construction Drawings or by the
Superintendent.
-
Disposal of salvaged materials
-
Making good severed ends of existing fences, walls, services, and other items
including fixing posts at ends of strained fences and restraining fences.
-
Disconnecting, removing and sealing services and recording the position of
sealed services.
-
Making good damage to buildings, other structures and surfaces caused by
demolition and removal.
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2.2
Road Construction
The work involves the clearing of trees, vegetation, light scrub and grasses
etc., from the proposed road alignment in preparation for earthworks,
drainage and road construction.
All vegetation and waste material shall be removed from site and disposed of
at an approved disposal site.
2.3
Grubbing
Where road pavement is to be constructed over cleared areas, clearing shall
include the grubbing out of stumps and tree roots to a depth of 600mm below
the natural surface or 400mm below the finished sub-grade, whichever is the
lower.
Any holes left after grubbing shall be filled and compacted to the same
density as that of the surrounding undisturbed soil.
2.4
Spoiling of Vegetation and Waste Material
The Contractor shall notify the Superintendent’s Representative of their
proposed spoil/dump sites prior to the commencement of clearing.
All vegetation and waste material shall be disposed of by the Contractor at
the Contractor’s disposal site or other approved waste disposal site.
On completing of the clearing, all vegetation, spoil and waste material must
be removed from the Site. No vegetation, spoil or waste material shall be
pushed beyond the limits of the site.
Burning is not to be used as a method of vegetation disposal on the worksite.
2.5
Damaged Areas
The Contractor shall take precautions to prevent any damage to vegetation,
trees, shrubs and grassed areas, fences and other improvements outside the
areas nominated to be cleared.
In the event of any damage to vegetated areas outside the clearing areas, the
Contractor shall make good, at their own cost, as directed by the
Superintendent’s Representative.
2.6
Clearing Areas
Prior to the commencement of the clearing operation, the Contractor shall
seek confirmation from the Superintendent’s Representative that the
clearing areas have been correctly defined and any trees tagged for retention
are clearly identified and marked.
3
EARTHWORKS
3.1
General
Earthworks includes all excavation, trenching, filling, compaction and
trimming as necessary to complete the topsoil operation, embankments, subTechnical Specifications
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grade, table drains, swales, drainage channels, batters and retaining walls to
the shapes and levels specified or as shown in the Construction Drawings.
3.2
Extent of Work
The extent of work involves:
-
Stripping, stockpiling, supplying (when required) and re-spreading of
suitable topsoil;
-
Preparation of embankment foundations;
-
Cut to fill and cut to spoil;
-
Construction of embankments using site material or imported select
fill;
-
Sub-grade Preparation;
-
Table drain formation and swale rock pitching;
-
The importing of select fill material where required.
-
Final trim of verges and side slopes to the table drains as per line and
level defined in the Construction Drawings
The Contractor is responsible for the assessment of the material nominated
for cut or fill and to select plant which will achieve the specified results. The
Contractor shall also assess the quantities of earthworks to be carried out,
including any effect on the levels of the in-situ material due to the operations
selected by the Contractor.
3.3
Topsoil
Stripping of Topsoil
In-situ topsoil shall be stripped from all areas where earthworks are to be
carried out. The stripping of topsoil must be completed prior to the
commencement of the earthworks.
Topsoil is defined as the layer of surface material containing humus, roots,
plants and organic material exceeding one percent by weight.
Immediately after clearing operations and before excavation commences,
topsoil to be used in topsoil replacement shall be removed separately from
the other excavated material and stockpiled. Compaction of the topsoil
should be avoided.
Any topsoil containing environmental and/or declared weed species shall be
removed from site and disposed of in an approved manner, as agreed with
the Superintendent and the Dept. of Agriculture and Food WA, so as to not
spread weeds further.
Stockpiling
Where topsoil cannot be stockpiled adjacent to the site, the Contractor shall
load, cart and stockpile the topsoil at the Contractor’s stockpile site or other
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approved site. The cost of loading, carting and stockpiling topsoil shall be met
by the Contractor.
Re-spreading Topsoil
The topsoil for respreading shall be assessed and blended on site to comprise
not more than 20 percent by weight of vegetable and humus material, not
more than 20 percent below the 75 micron sieve size and a maximum soil
particle size of 50mm. The topsoil shall be free of vegetation pieces larger
than 200mm in any one direction. Topsoil shall be spread uniformly to a
thickness not less than 50mm and not more than 100mm.
On completion of the earthworks and road construction work, topsoil from
the stockpiles or windrows shall be respread and seeded evenly on cut slopes,
fill embankment batters and verges as shown on the Construction Drawings.
Importing of Topsoil
The Contractor may be required to import topsoil for topsoil respreading
where:
-
topsoil stripped from the works is deemed to be unsuitable;
-
there is a deficiency in the quantity of topsoil required to complete the
topsoil respreading operation.
Imported topsoil must meet as a minimum the requirements of Clause 3.3.
Remaining Topsoil
The contractor shall remove excess and unsuitable topsoil from site.
3.4
Excavations
Excavations shall be taken to include all operations as necessary to excavate
earth from the site irrespective of type and subsurface conditions.
Excavations shall be carried out to the shapes and levels as shown on the
Construction Drawings and to the specified tolerances. Prior to the
commencement of any excavation, the stripping and stockpiling of topsoil
must be completed.
Suitable material from excavation may be used in embankment construction
or as select backfill for trench excavations.
Any over excavation shall be backfilled with embankment quality material to
the design levels shown on the Construction Drawings. Backfilling shall be
placed as specified in “Embankment Construction”.
Table Drain excavations and construction
Table drains are to be re-graded as detailed in the Construction Drawings.
Unsuitable material in the table drains and shoulders is to be removed and
replaced with approved selected fill material and the amount tendered shall
include the cost of excavation of replacement of unsuitable material in the
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table drains and shoulders. Selected fill shall be supplied and laid in
accordance with Section 3.5 embankment construction.
Rock General
This Contract is a lump sum and the amount tendered shall include the cost
of excavation of all rock encountered.
Rock in Trenches
Rock in trenches is defined as that material which cannot be excavated by a
hydraulic excavator fitted with a rock bucket at a rate of more than 15m3/hr
with a 32 tonne hydraulic excavator, i.e. Hitachi EX320 or similar.
Rock in Bulk Excavation
Rock in bulk excavation is defined as that material which cannot be removed
by ripping and pushing out with a Caterpillar D9H tractor in new condition
using a single tine ripper at a rate of more than 150m3/hr.
Rock Below Sub-grade
The Contractors shall rip rock to a depth of 150mm below the sub-grade level
such that a 150mm compacted sub-grade layer can be constructed using
select fill to specification. The surface of the exposed rock shall be trimmed
to allow free drainage (where possible) prior to the placement of sub-grade.
Where rock is encountered in trench excavations, rock shall be excavated to
a minimum of 150mm below the design invert level of the pipes, manholes,
catch pits etc. to allow for the construction of suitable bedding.
A geotechnical report is available for viewing. Any interpretation of
information contained in the geotechnical report is at the Contractor’s risk.
Excavation Support
The Contractor shall adequately support all excavations as the work proceeds
and shall exercise every reasonable precaution by means of intermediate
shoring, planking, props, and progressive back-filling to ensure the safety of
the Works, buildings, streets, or surface over and adjacent the Works
3.5
Embankment Construction
3.5.1 Materials for Roadworks
Material for embankment construction shall be suitable material extracted
from cuttings in the Works or, where the material is totally exhausted,
obtained from the Contractor’s borrow pits.
Material for embankment construction shall generally consist of natural
occurring or processed material which is capable of being compacted to the
specified densities to form stable areas of fill or embankment.
Material for embankment construction shall not contain any of the
following:Technical Specifications
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Material susceptible to volume change, including marine mud; soil with a
liquid limit exceeding 65% or a plasticity index exceeding 25%; swelling clays
or collapsible soils; peat; vegetation; timber; organic; soluble or perishable
material;
dangerous or toxic material, metal, rubbish, plastic and other waste
materials.
Material for embankment construction obtained from site cuttings shall have
a maximum particle size of 100mm and not more than 70% by weight passing
a 0.075mm mesh sieve. Stones over 100mm maximum dimension which
cannot be broken down shall be removed, and disposed of off-site unless
otherwise approved by the Superintendent’s Representative.
Select fill material obtained from the Contractor’s borrow pit shall be a
graded granular material with a maximum size of 75mm free from vegetation
matter and lumps of clay, with not more than 50% by weight passing
0.075mm mesh sieve. The material passing the 4.8mm sieve shall have
properties conforming to the requirements shown in table 3.5A.
TABLE 3.5 A – PROPERTIES OF SELECT FILL
Property
Requirement
Liquid Limit
Not Greater Than 40
Plasticity Index
Not Greater Than 15
California Bearing Ratio
(4 day soaked)
Not Less Than 12
The Contractor shall assess the fill quantities required within the earthworks
areas and allow to import shortfall of fill. All associated costs shall be
included in the lump sum tender.
On completion of the clearing operation, the whole of the areas upon which
fills and embankments are to be constructed shall be compacted to a
minimum dry density ratio of 92%.
Embankment foundations shall be constructed to the line and levels shown
on the Construction Drawings.
On completion of the embankment foundation, embankment material shall
be placed and compacted to the shapes and levels as shown in the
Construction Drawings.
Embankment material shall be worked in compacted layers not greater than
300mm or less than 100mm. Where less than 100mm is required to be
worked, the underlying material shall be scarified to such a depth that the
resulting thickness of the layer to be worked is greater than 100mm.
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Each layer worked shall be generally parallel to the finished pavement surface
and shall where practicable extend to the full width of the embankment at
that particular level. The Contractor shall at all times prevent ponding of
water on the embankment.
Where multiple layers are to be construction, the preceding layer shall
conform to all requirements before construction of the next layer may
proceed.
The embankment and each layer of fill material shall be compacted to a
minimum dry density ratio of 94% or greater.
During the whole of the compaction process, the Characteristic Moisture
Content of the embankment material shall be maintained within the range of
+2% to –2% of the optimum moisture content.
The batters shall be formed to a smooth surface with the finish obtainable
with blade grader operations. Batter slopes shall be smoothly shaped to a
uniform plane from top to bottom and shall not at any point vary from the
specified slope by more than 100mm measured normal to the specified batter
slope.
Embankment Batter Protection Works
The Contractor will protect embankment batters by constructing a minimum
thickness of 80mm of clayey gravel or gravely topsoil over the fill batters.
This material shall be uniformly graded and shall be free from boulders over
50mm in size and organic matter over 150mm in size.
Compaction of this layer shall be by static roller and shall be compacted to a
3.6
Sub-grade
General
The sub-grade shall consist of a uniform type material, free of any organic
material, disturbed clay or other foreign matter. Where the in-situ material
varies then the Superintendent’s Representative shall direct any over
excavation and replacement with approved material, either from site or off
site to achieve a stable sub-grade.
The Contractor shall remain responsible to reasonably assess the site
conditions and shall allow for the costs of any additional work in his lump
sum tender.
Compaction
The layer 150mm below sub-grade level shall be suitably compacted to a
Sub-grade to be formed to grade, crossfall etc. to ensure that an even
thickness of pavement can be finally achieved.
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The completed sub-grade surface shall be maintained in its conforming
condition until the sub-base construction commences and shall be watered
as necessary to prevent shrinkage cracking, dusting or loosening of its
surface.
HOLD POINT No further stage of construction is to be commenced until
the completed sub-grade has been inspected and approved by the
Superintendent’s Representative and the Local Authority.
3.7
Excess Spoil
Prior to the commencement of any earthworks, the Contractor shall
nominate the proposed spoil site for the spoiling of excess/waste material to
the Superintendent’s Representative.
3.8
Tolerances
The design levels are the levels on the completed earthworks including
respread topsoil. The tolerances are as specified in the table below
Item
Description
Tolerance
1
Clearing and grubbing
(width of design earthworks
plus 1m)
±0.3m
2
Earthworks - level
±20mm
3
Verge level
±15mm
4
Cut or fill batters
±2°
5
Topsoiling thickness
±10mm
6
Sub-grade
- Width
-0mm, +150mm
- Level
-35mm, +5mm
Table 3.8
3.9
Testing
General
The Contractor is responsible for the sampling, testing and patching of test
holes as necessary to determine densities of earthworks and conformance to
specification.
Earthworks shall be progressively tested to demonstrate that the specified
density has been achieved.
All sampling, testing and certification shall be completed by a NATA
registered laboratory.
All costs for this testing shall be incorporated in the lump sum contract.
Additional tests may be directed by the Superintendent’s Representative and
the Contractor shall arrange for the performance of such tests. Where the
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results of such tests indicate that the specified densities have been achieved,
the cost of the tests will be paid by the Principal through a provisional sum
for testing.
Insitu Density and Moisture Content
Testing to determine insitu densities and moisture content shall be carried
out in accordance with Clause 1.23, Testing, of the General Specification
Minimum Testing Frequency
The minimum frequency of testing to determine the conformance of Works
Processes with specified characteristics shall be as follows:
TABLE 3.9A – MINIMUM TESTING FREQUENCY
Process
Test
Frequency
Dry Density Ratio
As per table 1.23A
Dry Density Ratio
As per table 1.23A
Sub-grade
Dry Density Ratio
As per table 1.23A
Removal
unsuitable
of As per table 1.23B
3.10 Finish
All earthworks shall be final graded to the finished presentation stage
including:
3.11
•
evenly graded changes between design levels/contours
•
all wheel tracks and other disturbance levelled out
•
removal of all debris or rock pieces greater than 100mm in any direction
from the surface
•
Removal of all spoil heaps
•
Rolling or smudge boarding the final layer prior to topsoil spreading.
Quality Records
The Contractor shall produce, and submit weekly to the Superintendent’s
Representative, verified records to confirm that the Specification
requirements have been achieved.
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4
STORMWATER DRAINAGE
4.1
General
The Contractor shall supply, install and construct stormwater infrastructure
as shown on the Construction Drawings and detailed in the Specification and
as per manufacturers Specifications.
4.2
Australian Standards
All workmanship and materials used in the Contract Works shall conform to
the current Australian Standard where such Standard exists. Where such
Standard does not exist, the current Authority’s Standard shall apply.
4.3
Materials
Concrete Pipes (RC)
All concrete pipes shall conform to AS 4058 and subsequent Amendments
and shall be reinforced concrete pipes, unless otherwise specified or
authorised by the Superintendent’s Representative. Strength class shall be
“2” unless otherwise noted on the Construction Drawings. Sub-soil drainage
shall be constructed as shown on Construction Drawings.
Concrete
Concrete shall conform to AS 3600 and shall be supplied by a concrete
supplier conforming to AS 1379.
Concrete shall have a characteristic strength of N20, 60mm slump and
maximum aggregate size of 20mm.
Concrete strength shall be tested by means of product assessment methods
in accordance with Section 20.4 of AS 3600. The Contractor shall register
the project and arrange for results to be sent to the Superintendent’s
Representative.
On site mixing of concrete may be used subject to the Contractor’s proposal
of mix details being submitted to, and approved by the Superintendent’s
Representative. Site mixed concrete shall be subjected to site testing for
slump and strength in accordance with the relevant Australian Standard.
Cement
All cement used shall be Ordinary Portland Cement in accordance with AS
3972 and obtained from an approved manufacturer.
Cement shall be delivered to the site fresh and in sealed bags and there stored
in a weatherproof shed until such time that it is to be used. Any cement bag
showing sign of deterioration or of cement setting, shall be rejected.
Aggregate
Fine aggregate shall be well graded, clean, sharp and free from clay and
organic impurities in accordance with AS 1141.
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Coarse aggregate shall be crushed granite or diorite clean and free from all
impurities and dust in accordance with AS 1141.
The maximum particle size shall not exceed 20mm.
Water
Water for use in concrete and mortar shall be of potable quality, free from
any impurities harmful to concrete, mortar or steel.
Sand
Sand for mortar will be crushed stone or natural sand in accordance with AS
2701.4.
Sand for bedding or backfilling shall be clean sand or fine gravel as defined
by AS 1289 grading chart figure C6.1.1. It shall be free from roots, clay or any
deleterious matter and shall have a maximum nominal particle size of
4.75mm.
Steel
Steel reinforcing fabric and steel reinforcing bars for concrete shall comply
with the requirements of AS 1302, AS 1303 and AS 1304 and be free from
loose rust or matter likely to impair the bond with concrete.
Structural steel shall comply with the requirements of AS 4100.
4.4
Setting Out
General
The Construction Drawings show centre lines, grades, lengths, diameters,
invert levels at entry and exit of drains and pipes and the location of
manholes, gullies, headwalls and mortared stone pitching.
In all instances manholes are to be constructed in the locations shown.
Centre lines and invert levels are to be strictly adhered to and no alterations
shall be made except on the written authority of the Superintendent’s
Representative.
Setting out of Drainage Lines
Locations and levels shall be set out by an Engineering Surveyor, arranged
for by the Contractor at his expense.
The Contractor's Engineering Surveyor shall provide the Contractor's
Foreman with a copy of survey record for each drainage item. The record
shall indicate all reference pegs, offset pegs, RLs of dumpy pegs and relevant
distances. Records
shall be retained by the Foreman on Site and shall be available for inspection
by the Superintendent on request.
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4.5
Excavation
General
Prior to commencing any excavations, clearing and stripping of topsoil must
be completed in accordance with the Earthworks section of this specification.
The base of all excavations for installing pipes and other drainage
infrastructure shall be as per clause 3.5.2 embankment foundation.
Dewatering
The Contractor is responsible for any dewatering. Any additional
construction costs due to wet ground conditions shall be met by the
Contractor.
In the event of water being encountered, the Contractor shall make adequate
provision to ensure that the excavation is kept free from water during the
process of concrete pouring and for a period of at least 24 hours after the
concrete pour. No bedding or pipes shall be laid in water and trenches are to
be kept free from water until backfilling has commenced.
The Contractor shall not discharge or cause to be discharged into any drain,
lake, river or other receiving waters any water which contains levels of salt,
organic matter, chemicals, hydrocarbons, detergents or sediment
incompatible with the receiving waters. In the event that dewatering waters
do contain the above contaminants they shall be directed initially to a stilling
basin, recharge basin or similar. All solids and turbidity shall be allowed to
settle out before any dewatering is then discharged into any drain, lake, river
or other receiving waters.
The Contractor shall allow all costs associated with these measures including
clean up and restoration.
All permits or licences required for the lawful implementation of dewatering
shall be the Contractors responsibility.
The Contractor must ensure that dewatering will not lead to; the
contamination of the site; the spread of contaminants; the exposure of
contaminants which may lead to a human and/or environmental health risk;
and that dewatering is to be undertaken in compliance to Department of
Water, Department of Environment Regulation and Department of Parks
and Wildlife requirements. In case of a contaminated Site, dewatering may
not be permitted. Appropriate consultation shall be undertaken by the
Contractor to seek specialist advice regarding the contamination of the site
and possible dewatering.
Trench Excavation
Trenches are to be cut to line and gradient. The line of cut for each side of
the trench shall be marked out on the surface before excavation commences.
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The trench widths shall be kept to a minimum consistent with the bed width
requirements and the requirements of adequate working space and
timbering.
Should the bed of the trench be over excavated, then the over-excavated
volume shall be replaced with 1 part cement to 3 parts fine aggregate to 6
parts coarse aggregate by volume concrete mix at the Contractor's expense.
All trench excavation shall be made in a safe manner; the trenches either
being shored or battered back to achieve this. The Contractor shall comply
with the Occupational Safety and Health Act 1984 and the Occupational
Safety and Health Regulations 1996.
Trenches shall be kept free from water, debris and falling earth.
The final trimming of the bottom 150mm of trench excavation must be
carried out until immediately prior to concreting or placing of pipe bedding.
Manhole Excavation
Excavation for manholes must be made to the correct depth and of sufficient
dimensions to allow the base and walls to be constructed.
The Contractor shall be responsible for safety at all times.
Excavation in Roadways
Excavation is to be kept to a minimum in existing roadways and other paved
areas, ensuring that damage to such structures is kept to a minimum. All
excavations shall only apply to half the road at a time as specified in section
1.16 Traffic Control. The Superintendent shall be notified and approval
received prior to commencing work in roadways.
Measurement of Excavation
Measurement of excavation for the purpose of costing variations shall be in
accordance with the minimum trench dimensions shown on the Construction
Drawings, and measurement shall comply with AS 1181 "Method of
Measurement of Civil Engineering Works."
Obstruction to Traffic
Excavation material shall be deposited in an area causing the least
interference to vehicular and pedestrian traffic.
At all times when the works are left unattended, all excavation in public areas
shall be fenced off with warning signs and lighting and the Contractor shall
ensure that they remain in a safe condition. Pedestrian and vehicular access
to individual properties that may be affected shall generally be maintained at
all times, however intermittent temporary closures may be allowed at the
Superintendent’s Representatives discretion.
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4.6
Drain Construction
Pipe Setting
All pipes shall be set in a straight line between manholes or between
manholes and headwalls.
On inspection by the Superintendent’s
Representative, any pipe not placed in a straight line shall be replaced at the
cost of the Contractor.
Pipes shall be set in an upstream direction unless otherwise approved by the
RC Concrete Pipe Jointing
Spigot and socket pipes shall be jointed with the spigot fully home in the
socket and rubber ring joint. Pipes shall be laid such that the sockets face
upstream.
Pipe Bedding
Pipes shall be bedded on clean sand bedding. Pipes constructed in dry sand
conditions shall be bedded on a shaped trench base. Pipes constructed in wet
ground conditions shall be bedded on crushed rock bedding, all in
accordance with the Contract Drawings.
Perforated sub-soil drainage pipes shall be bedded on a 10mm all in filter
aggregate.
Timber Piling and Keel
Where the trench base is insecure, the Superintendent’s Representative shall
direct the Contractor to construct the drainage line, manhole or entry pit on
timber piles and keel. The Contractor shall bear the cost of all piling and keel
required.
Timber pile and keel for pipes less than 460mm diameter shall consist of one
line of piles with continuous 250 x 50 Jarrah keel with wedges. For pipes
over 460mm diameter, piles shall be in pairs with cross bearer, 2 sets per
pipe, as shown on the drawings.
Piles shall consist of 100mm x 100mm Jarrah and be driven into undisturbed
ground until the maximum set from 14 blows of a 32 Kg dolly free falling 1.0
metre does not exceed 25mm.
Manhole and entry pit bases on insecure ground shall be supported on three
125mm x 50mm jarrah bearers with 125mm x 38mm jarrah decking
supported by nine timber piles.
4.7
Manholes
Manholes shall be bedded on sand compacted in accordance with the
Earthworks section of this Specification.
Manholes shall be constructed on a precast or cast insitu concrete base. The
pit shall consist of precast reinforced concrete well liners with interlocking
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joints and brickwork as shown on the Construction Drawings. Covers shall
be fully trafficable and shaped as shown on the drawings.
Where a manhole is located in a road pavement area, the access chamber
shall be covered with a heavy duty fully trafficable circular cast iron framed
cover cast in a precast circular concrete surround.
4.8
Gully Entry Pits
Gully type entry pits shall be constructed as specified for drainage manhole
except that the concrete cover shall contain a cast-in grate and frame.
The grates and surrounds shall be fabricated as shown on the Construction
Drawings. The grate must be hinged in the frame.
4.9
Side Entry Pit (not used)
4.10 Step Irons
Where manholes or entry pits exceed 1.0 metres in depth, measured from top
of cover to invert level of the base, step irons shall be provided at 300mm
centres for the full depth of the manhole as detailed on the Construction
Drawings. Following application to the Superintendent`s Representative
allowance may be made for non-placement of the lower step iron if the step
iron compromises flows or natural flushing.
4.11
Headwalls and Endwalls
Generally headwalls shall be of the pre-cast type to suit the specified
pipework.
Stone headwalls may be allowed in some instances, stone headwalls shall be
constructed using either concrete with 20 MPa 28 day cylinder test
compressive strength or mortared stonework as detailed on the Construction
Drawings.
For mortared stonework the size and quality of the stone shall be as specified
for Stone Pitching.
4.12 Stone Pitching
Stones shall be as per the Construction Drawings and generally weigh in
excess of 10 kg each and the greatest dimension of any stone shall not exceed
1.5 times its least dimension.
Stones shall be hard, sound and durable, shall be set on a sand bed in a close
fitting pattern and watered and rammed into position.
Where specified as mortared stone pitching, the joints between stones shall
be raked clean for their full depth and grouted with 3 parts sand to 1 part
Portland Cement mortar.
4.13 Backfilling Of Pipe Trenches
Plain Pipes
Selected fill shall be used for backfilling to a height of 300mm above the top
of pipes and shall be an approved granular material containing no stone over
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25mm maximum dimension and compacted by means of an approved
mechanical or a pneumatic tamper to a minimum dry density ratio of 92%.
Care shall be taken so as not to disturb the pipe. For the remainder of
backfilling, material excavated from the trenches may be used provided that
it is free from stone over 150mm diameter, or vegetable matter.
Place the back-filling in maximum 300mm layers and compact to a density
at least equal to the density of the adjacent undisturbed soil or to not less
than a dry density ratio of 92%.
4.14 Backfilling under Pavements
Backfill over drainage lines under pavements shall be of sand compacted in
maximum 300mm thick layers to not less than a dry density ratio of 95%.
Under pavements, the final 150mm backfilling below the final sub-grade level
is to be 2% cement stabilised backfill material.
For the purposes of this clause, drainage lines under pavements shall be any
drainage line that fall within lines projected downwards and outwards at an
angle of 45o to the horizontal from the lower outer extremities of the
pavement sub-grade.
4.15 Testing Of Trench Backfill Density
The density shall be tested in accordance with Clause 1.23, Testing, of the
General Specification.
4.16 As Constructed Survey and Documentation
Survey
Using the Contractor’s quality assurance measure up (see Quality Assurance
Records), the “as constructed” survey shall be carried out and the results
recorded by the Contractor using a licensed surveyor. Refer to sections 1.11
and 1.13.
Requirements can be sourced from the latest Shire of York “Subdivision and
Development Guidelines”
Drawings
“As Constructed” drainage drawings shall be produced by the Contractor as
per Clause 1.13.
4.17
Cleaning Up
Any damage done by the Contractor or his employees to buildings, fences,
services, etc. shall be immediately made good to the approval of the
During the period of the Contract, the Contractor shall clean up the
construction site and remove all surplus construction material and debris
from the site. At the completion of the Contract the Site shall be clean and
tidy, all excavations filled flush with the natural ground level, and all excess
material removed.
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The Contractor shall immediately reinstate any subsidence over trenches
occurring at any time during the maintenance period.
4.18 Quality Assurance Records
The Contractor shall produce and submit weekly to the Superintendent’s
Representative verified records to confirm that the Specification
requirements have been achieved as follows:
TABLE 4.18A – QUALITY ASSURANCE RECORDS
Item as Specified
Frequency
Materials Specification
1 per delivery
Drain set-out
1 per drain line
Drain Construction
1 per drain line
Backfill
1 per drain line
Compaction
1 per layer per drain line. Test at each
layer, near manholes and along line.
The contractor shall note on the record where any item fails to meet the
specified requirements, including the planned remedial action to be taken.
4.19 Tolerances
Grades steeper than 1:500 + 10% of design grade and + 20mm of design
invert level
Grades flatter than 1:500 up to 10% steeper, but not less than 5% flatter than
design grade and + 10mm of design invert levels.
4.20 Strip Drain
Strip drain shall be a proprietary system as shown on the drawings installed in
accordance with the manufacturer’s recommendations.
4.21 PVC Pipes and Fittings
PVC-U pipes for stormwater conveyance and disposal shall conform to all aspects
of AS/NZS 1254:2010 (plus amendments).
The pipe classification shall be SN2 or greater.
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5
ROAD WORKS
5.1
General
The work to be completed under this specification consists of the supply of
materials and construction of sub-base and base-course pavement layers. All
works must be completed in accordance with the Construction Drawings and
Specifications.
5.2
Australian Standard
All workmanship and materials used in the Works shall conform to the
current Australian Standard where such Standard exists. Where such
Standard does not exist the current Authority's Standard shall apply.
5.3
Basecourse to be supplied by the Principal
The material to be used for pavement construction will be supplied by the
Principal. The Principal will stockpile the material on site prior to the date
for possession of the site.
Sampling and Testing
The Contractor is responsible for all sampling and testing of materials to
ensure compliance. The frequency of testing shall be one complete set of tests
per 500m3 of material.
The Superintendent may instruct that further testing be carried out on
material being placed on site.
Sampling and testing of natural gravel Base-course shall be in accordance
with AS 1141 and AS 1289. Where specified, testing of the natural gravel basecourse materials shall be in accordance with MRWA test procedures.
All samples shall be taken and tested by a NATA accredited Laboratory
Testing Authority for grading, dust ratio, liquid limit, plastic limit, linear
shrinkage, dry compressive strength and maximum dry density of the
material.
If the material varies in quality or is obtained from various quarries, each
variation in quality, or, material from each quarry used shall have this test
performed by the Testing Authority and a record shall be maintained by the
Contractor as to where the various materials have been placed.
5.4
Construction of Base-course
General
The base-course layer including the tapered shoulders shall be constructed
to the dimensions and details as shown on the Construction Drawings and to
the requirements of this Specification and to the specified tolerances.
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Commencement
Base-course construction shall not commence until the underlying layer has
dried back such that the Characteristic Moisture Content is equal to or less
than 85% of optimum moisture content.
Construction
Base-course shall be worked in compacted layers, not more than 200 mm nor
less than 100 mm compacted thickness. Where less than 100 mm is required
to be worked, the underlying Base-course shall be scarified to such a depth
that the resulting compacted thickness of the layer to be worked is, not less
than 100mm.
The base material shall be placed so that the sub-grade or the sub-base (when
a sub-base has been specified), is not disturbed and broken up and that an
even thickness is obtained.
The base-course material shall be thoroughly blade mixed on the alignment
by windrowing to achieve uniformity free from any evidence of segregation.
Laying-in the Base-course material shall be carried out with graders,
compacted with static and finished with steel wheel and rubber tyre rollers in
order to achieve the required standard of finish.
During final shaping and compacting, the shape shall be checked frequently
and corrected as necessary by grading under the direction of an experienced
foreman. The cross fall, super-elevation and smoothness of grade shall be
checked with a straight edge and built-in level. The finished level shall allow
for the thickness of the seal coats.
Compaction
Each base-course layer shall be compacted to a minimum dry density ratio of
98%.
The Contractor shall ensure that base-course compaction is carried out with
uniform moisture content, maintained within 2% of the optimum moisture
content, and a uniform compactive effort applied longitudinally and
transversely to the alignment.
Finish Surface
The finished base-course shall be in a uniformly bound condition with no
evidence of layering or disintegration. The finished surface shall be of dense,
even texture, tightly bound and suitable to receive bituminous surfacing.
The base shall be watered, compacted and cut to grade and cross fall as noted
on the Construction Drawings
Completed base-course construction shall be maintained to the specified
standards of surface shape, level, compaction and finish up to the time of
application of the bituminous surfacing.
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Watering shall be continued as necessary to prevent shrinkage, cracking,
dusting or loosening of the surface.
Tolerances
(i)
Layer Width
The outer top edge of any layer of the pavement shall not be less than
the specified width and no more than 150 mm further from the road
centreline than the positions shown in the Construction Drawings.
(ii)
Surface Shape
The shape of the base shall be judged to be acceptable when the
maximum deviation from a 3 metre straight edge placed in any
position on the surface does not exceed 6 mm.
(iii)
Surface Level
The level of the completed base surface shall be deemed to be
conforming when the level measured at any point on the surface is
within -5 mm, +20 mm of the sub-base level at that point as
determined from the Construction Drawings.
Testing
The Contractor is responsible for the testing of each base-course layer to
ensure conformance is achieved. The type and frequency of testing shall be
carried out in accordance with the following table.
Table 7.5 Testing Frequency
Item
Test / Method
Dry
Frequency
Compaction
Maximum
(MDD)
Density As per table 1.23A
Base-course
Width
Surveyed
As per table 1.23B
Surface Shape
3m Straight Edge
As per table 1.23B
Surface Level
Surveyed Cross Section
As per table 1.23B
The Contractor shall provide a 3m straight edge and spirit level required for
checking purposes and shall make these, together with the necessary labour,
available to the Superintendent’s Representative when required.
Non-conformance
Where the shape of the compacted road or the thickness of the base-courses
do not comply with the requirements of this Specification, the Contractor
shall correct the same, at his cost, by scarifying, adding or removing materials
as required, re-compacting and trimming as necessary to comply with the
requirements of this Specification.
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The surface of the base-course after trimming and compaction shall be even
and true to required shape, grade and surface condition ready for priming. If
subsequent testing reveals an uneven surface or a lesser depth of material
than specified above, the top of the Base-course shall be scarified, further
material added as required, shaped and compacted to the requirements of
the Specification.
After preliminary consolidation, the placed base-course material shall be
lightly scarified and further material added as necessary to give the required
compacted depth. The loose layer shall be thoroughly blade-mixed to its full
depth by means of an approved grader.
HOLD POINT
After the base-course has been prepared and compacted, no work is to be
commenced on the sealing of the pavement until the Superintendent is
satisfied that the specified shape, compaction and course thickness has been
achieved.
5.5
Quality Assurance Records
The Contractor shall produce and submit weekly to the Superintendent’s
Representative verified records to confirm that the Specification
requirements have been achieved. Records are to be submitted as follows:
TABLE 7.6 – QUALITY ASSURANCE RECORDS
Item
Sub-grade
- Removal of unsuitable
material
- Finished level, alignment,
width
- Compaction
Sub-base
Finished level, depth of
layer, alignment, width
- Compaction
- Material Specification
Base-course
- Finished level, depth of
layer, alignment, width
- Compaction
- Material Specification
Frequency
Each occurrence
Every 20m
As per Table 1.23A
As per Table 1.23B
As per Table 1.23A
As per Table 1.23B
As per Table 1.23B
As per Table 1.23A
As per Table 1.23B
All Compaction Tests shall be adequately distributed so as to give a good
representation of the whole area.
The Contractor shall note on the record where any item fails to meet the
specified requirement and the planned remedial action to be taken.
5.6
Quality Assurance Auditing
In order to audit the Contractor's testing programme, routine testing of
materials and workmanship over and above the quality assurance schedule
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may be called for from time to time by the Superintendent’s Representative
at each stage of the road works. No work shall be commenced on the next
stage until the existing work has been tested and approved by the
It shall be the Contractor's responsibility to advise the Superintendent’s
Representative when each stage of the work is ready for testing. All tests shall
be arranged for by the Contractor at locations directed by the
Superintendent’s Representative with an independent testing authority
registered with the National Association of Testing Authorities Australia for
the tests required.
The Contractor shall give the Superintendent’s Representative four (4) days’
notice of when the work will be ready for compaction tests. The
Superintendent’s Representative shall direct the location and type of testing
required. The results of all tests shall be issued to the Superintendent’s
Representative by the Testing Authority.
All tests shall be paid by the Contractor directly to the Testing Authority
concerned.
The Contractor may claim the cost of all tests requested by the
Superintendent’s Representative over and above the quality assurance
schedule and the results of which indicate that the work or material is in
accordance with the Contract.
Where tests indicate that the work or material is not in accordance with the
Contract, the cost of the tests shall be borne by the Contractor.
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6
BITUMINOUS SURFACING
6.1
General
The work to be executed under this specification consists of the supply and
application of a prime coat followed by a double coat 10mm seal. The
Contractor is to determine the spray rate.
Materials
(i)
Bitumen
The bitumen to be used must be a straight run slightly blown bitumen
distilled from crude bituminous base oils. The grade is to be class 170
(140-200 Pascal second viscosity at 60 degree Celsius).
The bitumen properties are to conform to AS 2008 and the current
NAASRA. Specification. The minimum density at 25 degrees Celsius
shall be 1.0 kg per litre.
(ii)
Medium Curing Cutting Oil
Medium curing cutting oil to be used shall conform to that shown in
table 8.1A below.
TABLE 8.1A – PROPERTIES OF MEDIUM CURING CUTTING OIL
Property
Requirement
Initial boiling point
132-160°c
Final boiling point
265°c Max
Temperature at 50% recovery
220°c Max
Flash point (open)
35°c Min
Density at 25°c
0.78-0.82kg/L
Percentage aromatics
15% Min (volume)
Miscibility with equal parts of Complete, no precipitation
Class 170 bitumen
(iii)
Viscosity at 40°c
1.0 - 1.4mm sq/s
Water content
0.05% Max
Slow Curing Cutting Oil
Slow curing cutting oil shall be a recognised petroleum product distillate fuel
oil conforming to the requirements shown in table 8.1B below.
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TABLE 8.1B – PROPERTIES OF SLOW CURING CUTTING OIL
Property
Requirement
Initial boiling point
170 - 195°c
Final boiling point
360 - 400°c Max
Temperature at 50% recovery
250 - 290°c Max
Flash point (open)
65°c Min
Miscibility with equal parts of Complete, no precipitation
Class 170 bitumen
(iii)
Viscosity at 40°c
2.0 – 4.0 mm2/s
Water content
0.05% Max
Adhesion Agents
An adhesion agent shall be supplied from the list of approved adhesion
agents given in Table 8.1C below.
TABLE 8.1C – ADHESION AGENTS
Adhegen 572/60
Bitumite
Bitumite 3995/60
Megamine BA
Radiamine 6681/40
Radiamine 6681/60
Redicote 422/60
TAA 2500
Wetfix F
(v)
Aggregate
The aggregate used for sealing shall consist of crushed diorite (or
granite) stone which shall consist of clean, tough, durable fragments
free from an excess of thin or elongated pieces, free from soft or
disintegrated pieces, stone coated with dirt, or other deleterious
matter, in compliance with AS 2758.2.
The physical properties of crushed aggregates shall conform to the
requirements shown in table 8.1D.
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TABLE 8.1D – PROPERTIES OF CRUSHED AGGREGATES
Property
Requirement
Los Angeles Abrasion Value
30% maximum
Flakiness Index
30% max. (granite)
Particle Size Distribution
As per table 8.1E
Water Absorption of Fine and 2% max.
Coarse Aggregates
Unsound Particles
5% max.
The particle size distribution (PSD) of crushed aggregates shall
conform to the requirements shown in table 8.1E.
TABLE 8.1E – PSD 10mm CRUSHED AGGREGATE
AS Sieve Size
10mm Crushed Aggregate
13.20
100
9.50
80 – 100
6.70
0 – 20
4.75
0–2
2.36
1.18
0 – 0.5
The Bulk Specific Gravity of the particles of diorite shall not be less
than 2.90 (2.60 for granite).
Should it be found on testing that material delivered to stockpile does
not conform to these specifications, such material shall be removed
from the site and replaced with suitable aggregate.
Surface Preparation
Before sealing, the pavement shall be swept clean of all loose material, sand,
stones, dust and other foreign matter before surfacing. Any defects are to be
made good.
Should conditions require it, the surface shall be lightly watered immediately
prior to the application of the seal.
Sealing shall be carried out during favourable weather conditions and the
prepared Base-course shall be sufficiently dry (65% of Optimum Moisture
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Content) to permit adherence to and penetration of the Base-course by the
bitumen.
Application of Binder
The Contractor shall provide a fully comprehensive seal design to the
superintendent at least 5 days prior to intention of sealing and give the
Superintendent at least 48 hours’ notice of the Contractor’s intention to apply
the approved design binder. For pricing purposes the binder shall be applied
at the rates shown below, however final seal design shall be the responsibility
of the Contractor and carried out by the Contractor’s sealing Sub-Contractor
prior to time of application.
(i)
Binder
The binder composition and binder application rate is detailed Table
8.1F below:
TABLE 8.1F – BINDER COMPOSITION AND APPLICATION
Coat
Binder Composition (% by
volume)
Class
Bitumen
170
Binder Application
Rate
Medium Curing
Cutting Oil
(BAR) @ 15oC
(L/m2)
Prime coat
50
50
0.6*
1 coat seal (10mm)
100
0
1.4*
* Note: The binder application rate is provided for pricing proposals;
the actual rate is to be determined on site by the contractor
appropriate for the conditions.
(ii)
Binder Spraying Temperature
Binder spraying temperature shall be in accordance with table 8.1G
below.
TABLE 8.1G – BINDER SPRAYING TEMPERATURE
Binder Composition
99.5/0/0.5
Spraying
Temperature Range
(oC)
Binder Application
Rate(BAR) @ 15oC
(L/m2)
155-185
1.4*
* Note: The application rate of binder is a guide only. The application rate
may vary according to surface texture and other factors. It will be the
responsibility of the Contractor to make an assessment to determine the
appropriate application rate.
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(iii)
Adhesion Agent
Adhesion agent shall be added to cutback bitumen binder in the
proportion of 0.5% of the binder volume at 15oC.
The binder shall be bar circulated for at least three (3) minutes immediately
prior to spraying.
The spraying of the binder for each run of the sprayer shall start and finish
on protective paper. The sprayer shall start each run at least 10m before the
protective paper and shall cross the paper at its correct spraying speed. The
sprayer shall maintain its correct spraying speed over the full length of each
run and shall cross the finish paper at this speed. All tapers and fillets shall
be sprayed after masking with protective paper. The paper so used and any
spilt bitumen shall be removed and disposed of in a suitable manner.
Where the direct use of the mechanical sprayer is impracticable, the binder
may be applied by using a hand lance fed from the mechanical sprayer. The
application is to maintain an even and consistent spray rate to the rate used
with the mechanical sprayer.
The binder edge shall not deviate from the desired edge lines by more than
50mm. The rate of deviation of the binder edge from the desired edge lines
shall not exceed one in four hundred.
All necessary precautions shall be taken to prevent binder from adhering to
any existing structure. Any damage or defacement shall be made good
immediately after sealing in that section has been completed and no payment
will be made for the cleaning work.
Application of Cover Material
The aggregate shall be dry (containing no water) at the time of application
and shall be uniformly spread over the sprayed area by means of a suitable
type of mechanical spreader. The mechanical spreader shall be fitted with
removable cut-off attachments to allow the aggregate spread width to match
the required width on the pavement.
The time lag between spraying and spreading shall be kept to a minimum and
all sprayed areas, with the exception of approved lapping strips, shall be
covered with aggregate within ten (10) minutes of spraying the binder. The
length of spray runs shall be limited to ensure compliance with this
requirement.
The aggregate shall be placed to form a uniform stone mosaic of single
particle thickness, in almost continuous interlocked contact, generally
orientated with their least dimension vertical. In order to meet this
requirement it may be necessary to apply the aggregate initially at a rate
slightly less than appears optimum so that some binder is visible between the
stones. Specified aggregate application rates are nominal and should be
adjusted to suite the aggregate used to give the correct stone mosaic.
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Additional aggregate shall be applied to any bare or insufficiently covered
areas as necessary to provide a uniform and complete cover. Where the area
to be covered with additional aggregate is not of uniform width the additional
aggregate shall be spread by hand.
Should over spreading of the aggregate occur that results in a substandard
surface, the contractor shall directed to repair, or shall be liable for the cost
of any remedial works required.
Rolling and Brooming
Immediately after application of the cover material, the surface shall be rolled
with rubber tyred rollers only. 12 complete passes over the whole area shall
be carried out to complete rolling.
For the first four passes, rollers shall be operated at speeds less than 7 km per
hour. Drag brooming shall be carried out after every second pass of rolling.
Plant
(i)
Bitumen Sprayers
Bitumen sprayers shall be of 2,700 litres minimum capacity and shall
comply with the requirements for bitumen sprayers set out in the
NAASRA Publication "Specification for Mechanical Sprayer of
Bituminous Materials". The sprayer shall have been tested for
uniformity of transverse distribution and calibrated for overall rates
of application. The tests shall be performed within three months prior
to use of the sprayer in the works up to spray rates at least 15% higher
than specified herein. The certificates and charts applying to such
tests shall be made available to the Superintendent’s Representative.
The Superintendent’s Representative may require the sprayer to be
made available free of charge for inspection and testing prior to or
during the execution of the works.
(ii)
Rollers
Steel wheeled power rollers shall be three wheel tandem rollers of
between 6 and 15 tonnes gross weight and the load per metre of any
wheel shall not exceed 5 tonnes
Pneumatic tyred power rollers shall be of the self-propelled type
weighing not less than 15 tonnes gross weight and having "square
section" tyres at a pressure of not less than 700 kPa.
(iii)
Brooms
A rotary road broom of approximately 2 metres width is required and
the broom must be capable of being turned up to 45 degrees either
way.
The rotary drawn broom must be capable of being used as a drag
broom or a drag broom must be provided.
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Records
The Contractor shall accurately record all the necessary information required
in respect to each application of binder. The forms shall be supplied by the
Contractor and one copy of the completed form for each item of work shall
be submitted to the Superintendent’s Representative at the completion of
each day's surfacing work.
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7
KERBING AND FOOTPATHS
7.1
General
The work to be completed under this specification consists of the supply of
materials and construction of extruded concrete kerbs, driveways, in fills,
and the various kerb transitions and end treatments as shown on the
Construction Drawings and detailed in this specification.
7.2
Extent of Work
The extent of work involves:
7.3
-
Supply of materials, including bedding material (brick pavers), boxing,
steel reinforcement, concrete, joint and filler sealants and curing
compounds;
-
Preparation of foundations including the excavation, placement of
bedding material, compaction of foundations and the sweeping of
surfaces (where kerbing is to be laid directly onto sealed surfaces);
-
The setting out of string lines, formwork and boxing;
-
The placement of steel reinforcing where required;
-
The placing, pouring and extrusion of concrete including the
compaction (vibration), trimming, screening, trowelling and brooming
to finish the concrete surface;
-
The protection, curing and construction of expansion joints;
-
The removal of formwork, boxing, rubbish, excess concrete and waste
materials.
Materials
Concrete
Concrete for kerbing shall be constructed from 32 MPa 28 day cylinder test
compressive strength concrete manufactured in accordance with AS 3600 for
10mm aggregate with a maximum slump of 90mm.
Concrete for footpaths, driveway crossovers and pram ramps shall be
constructed from 25 MPa 28 day cylinder test compressive strength concrete
manufactured in accordance with AS 3600 for maximum 14mm aggregate
with a maximum slump of 75mm.
Steel Reinforcement
Reinforcement used in the Works shall comply with the relevant
requirements of AS 1302, AS 1303 and AS 1304.
Admixtures
Admixtures may be used in concrete to modify workability but will not be
permitted for the purpose of reducing cement content. However, the
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admixture shall have no harmful effect whatsoever upon the quality of the
concrete or upon any reinforcement or other fixture embedded therein.
7.4
Kerbing
General
Kerbing shall be construction to the shape, type, size, line and levels as shown
on the drawings and detailed in this Specification.
Setting Out
Setting out of the kerb shape, profile and alignment shall be carried out on
the rear of the kerb. Spikes and nails shall not be driven into the pavement
surface.
Surface Preparation
The surface to receive kerbing shall normally be a bituminous aggregate seal.
The Contractor shall clean the area between the receiving surface and the new
kerb of all loose sand, stones, dust and other foreign matter and shall wet the
surface with water immediately prior to placement of the new kerbing.
Alignment
The final shape and dimensions of the extruded kerb shall be as detailed on
the drawings. The top surface of the kerb shall always be parallel to the ruling
grade of the pavement, with gentle transitions at changes in grade.
The kerb shall be placed in straight lines and in circular curves as shown on
the drawings. The width of the road shall be the distance between the kerbs
along straight sections of the road measured at right angles to the kerbs from
toe to toe and shall be as detailed on the drawings. The kerbs shall be
equidistant from the road centre line. At road junctions and intersections the
radius or kerbing shall be measured from the roadside toe of the kerb.
Kerbs to roads shall be constructed of extruded concrete kerbing. Kerbing to
smaller radii than can be placed with the extrusion machine used shall be cast
insitu to the same cross section as that of the extruded kerbing, except that
the cast insitu kerb shall be 100mm deeper than the extruded kerbing and
shall be embedded firmly in the road surface to the extra depth. The outward
appearance of the extruded and cast insitu kerbing shall be identical.
Extruded Kerbs
The kerb shall be placed using an appropriate extrusion machine, approved
by the Superintendent’s Representative and the Local Authority and the work
shall be carried out by an experienced and competent crew. The first 150mm
of any new pour shall be cut away and removed. The gap between the old and
new work shall be filled by hand placing, rodding and shaping of the concrete
until a satisfactory shape and finish has been obtained. Extruded kerb shall
be joined to existing kerbing by using the same method.
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Contraction Joints
Contraction joints shall be constructed at 2.0m intervals, at sides of entry pits
and at tangent point of sweeps by complete separation of adjoining sections
of the kerb immediately after extrusion.
The extruded kerb shall be finished by means of a kerb shaped screed.
The finishing shall follow immediately after the cutting of contraction joints.
The finishing shall bridge over the contraction joints to form a continuous
cover.
Each contraction joint position shall be clearly marked by a cut in the finished
surface on the entire exposed face of the kerb before the concrete has set.
Expansion Joints
Not less than 24 hours after placing of the kerb expansion joints shall be
constructed at every second contraction joint. The expansion joints shall be
formed by the sawing of a 10mm gap that completely severs the adjoining
sections of the kerb. The gap shall be filled with approved joint filler after the
Superintendent’s Representative and the Local Authority have inspected and
approved the cut joints.
Curing
Within two hours of surface finishing, all exposed faces of the completed kerb
shall be protected against loss of moisture for a period of not less than 96
hours after placing by shrouding with plastic sheeting or by spraying with a
curing compound complying with AS 3799.
Protection
Kerbs shall be protected from bitumen overspray at all times by adequately
covering the kerbs with polythene sheeting or similar approved material.
Any kerbing marked by bitumen spray shall be made good by the Contractor
at his own expense.
Tolerances
All kerbing shall be placed within 20 mm of its true plan position on the
ground, and the rate of deviation from its true line shall not exceed 1 in 300.
The road face and the back face of the finished kerbing shall be parallel.
The depth of finished kerbing shall not be less than that shown in the
drawings.
The top surface shall be parallel to the ruling grade of the pavement and shall
be free from depressions exceeding 5 mm when measured from a 3 m long
straight edge.
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Kerb Repairs
Broken or damaged concrete shall be removed and disposed of to the
Contractor’s spoil site at no cost to the Principal.
The exposed concrete repair surface shall be roughened to remove all laitance
and expose the aggregate to provide a thorough bond with concrete cast
subsequently. The roughened surface shall be cleaned with water to remove
loose chips and foreign material.
Immediately before fresh concrete is cast against the existing surface, the
existing surface shall be thoroughly wetted.
7.5
Footpaths
General
Footpaths, driveways and pram ramps shall be construction to the shape, line
and levels as shown on the drawings and detailed in this Specification.
Footpaths shall include pram crossings, crossovers and other similar
treatments.
Setting Out
Setting out of the footpath shape, profile and alignment shall be carried out
from the rear of the kerb as shown on the drawings. Footpaths shall be
constructed with a minimum cross-fall of 2% towards the road carriageway.
Excavation and Bedding
Excavation, backfilling and trimming shall be carried out as necessary to
prepare the subgrade on which the footpath, driveway and pram-crossing are
to be constructed.
The subgrade shall be evenly graded and free from rocks, organic matter and
any other deleterious material. The subgrade shall be compacted to a depth
of 500mm to achieve a maximum dry density of not less than 95%.
Placement and Curing
Before placement of concrete, the box-out alignment shall be watered to
provide a thoroughly moistened, but not flooded, subgrade.
The concrete pavement shall be consolidated using a mechanical vibrating
screed spanning the width of the path and supported by rigid side forms.
After consolidation, the concrete shall be screened perpendicular to the side
forms to provide a straight surface between forms and a smooth, even surface
profile along the path alignment.
Curing
To prevent premature drying of the surface of screened concrete in hot
weather conditions, the addition of water to the surface of the screened
concrete using a fog spray may be permitted. Approval of the addition of
Page 50 of
52
water in this manner is conditional upon the integrity of the mix being
maintained in accordance with its specification.
Finish
The finished concrete pavement shall have a non-slip, broomed surface with
all edges and joints trowelled with a bullnosed edging tool after brooming.
The broomed groves (approximately 2.0mm deep) shall be aligned 90o to the
edge of the pavement.
Expansion Joints
Transverse expansion joints shall be placed at 4.0m intervals for footpaths
and align with expansion joints in the kerb where applicable. The joints shall
be 10mm wide and extend the full depth and width of the pavement and shall
be filled with an approved expansion joint filler.
Expansion joint shall be installed where the pathway abuts utility service
structures, drainage pits and/or existing crossovers.
Contraction Joints
Transverse contraction joints shall be constructed at 2m intervals and align
with contraction joints in the kerb. The contraction joint shall be aligned at
90o to the pavement alignments and shall be a minimum of 20mm deep and
shall provide a vertical plane of weakness through the pavement. The joint
shall be made in plastic concrete by depressing an approved grooving tool
into the surface of the pavement.
Edge Treatment
The edges of the footpath shall be polished smooth and rounded using an
edger of radius 10mm. The edges shall be free from irregularities of
alignment and/or level.
Protection
The Contractors shall provide and maintain protection of the pavement
against damage of every kind during the period of setting and curing of the
concrete.
The Contractor shall be responsible for the appropriate signing and the safety
of the public.
Page 51 of
52
8
MISCELLANEOUS CONSTRUCTION
8.1
Other Services
The location of all existing utilities and services shown on the Construction
Drawings will be regarded as indicative only. It is the Contractor's responsibility to
establish what services or improvements exist or are under construction at the works
site, prior to commencing works in the area.
The Contractor must make the appropriate allowances in the Contractor’s Works
Program for all necessary liaison, relocation if required and programming with
service authorities as required for the provision of installation by service authorities
during the Works. The Contractor must reinstate and make good and backfill service
trenches to the relevant service authority requirements.
No utility, private or public, may be moved to accommodate the Contractor's
equipment or its method of operation when the utility does not interfere with the
Works, unless such removal is at the expense of the Contractor, and in each case
subject to the approval of the utility authority concerned.
The Contractor shall take all precautions necessary to prevent damage to existing
fencing, drainage structures, telephone and power lines, water mains and services,
and/or other improvements during the construction period. Any damage caused by
the Contractor shall be made good by the Contractor at the expense of the Contractor
or the Superintendent shall arrange for such damage to be made good by others and
for the costs involved to be deducted from payments due to the Contractor.
Any damage caused by the Contractor shall be notified immediately to the
Superintendent and to the Authorities or persons concerned.
8.2
Existing Works
Where works are continuous with or adjacent to existing work, the Contractor is
responsible for making the proper junction between the two sections and for making
good any damage to the adjoining works. The Contractor shall confirm that the
existing works conform in level and location with those shown on the Construction
Drawings before commencing any work on site. No claim will be considered
consequent upon the Contractor failing to ensure that this condition is met.
8.3
Signs and Line marking
Signs and Line Marking is to be supplied and installed in accordance with Main
Roads WA, the drawings and AS 1742 Manual of Uniform Traffic Control Devices
and as specified on the Construction Drawings.
8.4
Bollards
Bollards shall be supplied and installed in accordance with the drawings.
Page 52 of
52
SECTION 4.0
ANNEXURES FORMS 1-6
SCHEDULE OF PRICES
FOR SEPARABLE PORTIONS
CIVIL WORKS
YRCC Carpark,York
Contract W-04645
FORM 1
Description of Work:
CIVIL WORKS YRCC CARPARK YORK
The Tenderer is to complete the following Lump Sum Schedule by inserting in the column headed
“PRICE ($)" the unit price for item of work described.
NOTES:
♦ The Schedules of Prices may be used to enable assessment of claims and variations.
♦ The Principal shall not be bound to accept the lowest or any Tender, and reserves the
right to accept any Tender or part of any Tender.
♦ The WUC shall be tendered as separable portions.
♦ Approximate volumes are provided as “solid in place” approximations calculated from
the design drawings. The Tenderer is to confirm the quantities, including bulking
factors, as part of their tender.
♦ Quantities are provided as an aid to pricing the Lump Sum value. They will not be
measured as a schedule of rates.
ABBREVIATIONS
The following abbreviations will be used for units of measurements:
UNIT
ABBREVIATION
UNIT
ABBREVIATION
Millimetre
mm
Diameter
DN
Metre
m
Provisional quantity
PQ
Square Metere
m2
Provisional sum
PS
Hectare
ha
Number of
No.
Cubic Meter
m3
Items
Item
Kilogram
kg
Hours
Hrs
Tonne
t
Man Days
M/Day
Millilitres
mL
Day
Day
Each
ea
Week
Wk
YRCC Carpark, York
Page 1 of 13
SCHEDULE OF PRICES
CIVIL WORKS
YRCC Carpark,York
Contract W-04645
(Refer to the Preambles to the Schedule of Prices)
SUMMARY : SEPARABLE PORTION A (BARKER STREET ENTRANCE)
SECTION DESCRIPTION
AMOUNT ex GST
($)
1.0
2.0
GENERAL ITEMS.
SITE CLEARING
3.0
4.0
5.0
6.0
EARTHWORKS
PAVEMENT
BITUMEN SURFACING
KERBING
7.0
8.0
SIGNS AND LINEMARKING
PROVISIONAL SUM
CONTRACT SUM TOTAL (excluding GST)
Inc. GST
SUMMARY : SEPARABLE PORTION B (80-BAY CARPARK ONLY)
SECTION DESCRIPTION
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
AMOUNT ex GST
($)
GENERAL ITEMS.
SITE CLEARING
EARTHWORKS
DRAINAGE
PAVEMENT
BITUMEN SURFACING
KERBING AND FOOTPATH
SERVICES
MISCELLANEOUS
PROVISIONAL SUM
Inc. GST
YRCC Carpark, York
Page 2 of 13
SCHEDULE OF PRICES
CIVIL WORKS
YRCC Carpark,York
Contract W-04645
SUMMARY : SEPARABLE PORTION C (130-BAY CARPARK ONLY)
SECTION DESCRIPTION
AMOUNT ex GST ($)
1.0
2.0
3.0
GENERAL ITEMS.
SITE CLEARING
EARTHWORKS
4.0
DRAINAGE
5.0
6.0
7.0
8.0
9.0
10.0
11.0
PAVEMENT
BITUMEN SURFACING
SERVICES
MISCELLANEOUS
PROVISIONAL SUM
Inc. GST
YRCC Carpark, York
Page 3 of 13
SCHEDULE OF PRICES
FOR SEPARABLE PORTION A
CIVIL WORKS
YRCC Carpark,York
Contract W-04645
YRCC CARPARK, YORK: SEPARABLE PORTION A
ITEM
DESCRIPTION
UNIT
QTY
1.0
GENERAL ITEMS
1.1
Levies /Insurances
LS
100%
1.2
Contractors Superintendence
LS
100%
1.3
Survey setout and control
LS
100%
1.4
Mobilisation and demobilisation
LS
100%
1.5
Site Facilities
LS
100%
1.6
Traffic Control and Management
LS
100%
1.7
QA and testing by accredited laboratory
LS
100%
1.8
Prepare and maintain `As Constructed `
drawings (refer to clause 1.14 GCC)
LS
1.9
Locate and protect existing services
LS
PRICE ($)
% Total
Cost
100%
100%
Sub-Total (1.0) Carried to Summary
2.0
SITE CLEARING
2.1
Remove exsiting seal
m²
471
2.2
Clearing
LS
1
NAME OF TENDERER
:
..........................................................................................................
SIGNATURE OF TENDERER
:
.......................................................... DATE : ..................................
YRCC Carpark, York
Page 4 of 13
SCHEDULE OF PRICES
FOR SEPARABLE PORTION A
CIVIL WORKS
YRCC Carpark,York
Contract W-04645
YRCC CARPARK, YORK: SEPARABLE PORTION A
ITEM
DESCRIPTION
UNIT
QTY
3.0
EARTHWORKS
3.1
Roading earthworks
3.1.1
Cut to road subgrade
m³
33
3.1.2
Fill to road subgrade
m³
1
3.1.3
Subgrade preparation
4.0
PAVEMENT
4.1
Tie into existing road / intersections
ea
1
4.2
Supply, lay and compact 100mm Crushed Rock
Basecourse
m2
606
PRICE ($)
m²
606
5.0
BITUMEN SURFACING
5.1
Supply and lay primer seal
5.2
Supply and lay two coat seal
6.0
KERBING
6.1
Supply and install flush kerb
m²
606
m²
606
m
180
7.0
7.1
Relocate existing signs
8.0
PROVISIONAL SUM
8.1
Protection/relocation of services
ea
2
PS
1
$10,000.00
NAME OF TENDERER
:
..........................................................................................................
:
.......................................................... DATE : ..................................
YRCC Carpark, York
Page 5 of 13
SCHEDULE OF PRICES
FOR SEPARABLE PORTION B
CIVIL WORKS
YRCC Carpark,York
Contract W-04645
YRCC CARPARK, YORK: SEPARABLE PORTION B
ITEM
DESCRIPTION
UNIT
QTY
1.0
GENERAL ITEMS
1.1
Levies /Insurances
LS
100%
1.2
LS
100%
1.3
LS
100%
1.4
LS
100%
1.5
Site Facilities
LS
100%
1.6
Traffic Control
LS
100%
1.7
QA and testing
LS
100%
1.8
drawings (refer to clause 1.14)
LS
100%
LS
100%
1.9
PRICE ($)
% Total
Cost
2.0
2.1
SITE CLEARING
Remove and stockpile topsoil (100mm) and
respread
m²
296
3.0
EARTHWORKS
3.1
carpark earthworks
3.1.1
Cut to subgrade
m³
290
3.1.2
Fill to subgrade
m³
91
3.1.3
Subgrade preparation (road)
m²
4170
NAME OF TENDERER
:
..........................................................................................................
:
.......................................................... DATE : ..................................
YRCC Carpark, York
Page 6 of 13
SCHEDULE OF PRICES
CIVIL WORKS
YRCC Carpark,York
Contract W-04645
ITEM
4.0
4.1
4.1.1
4.2
DESCRIPTION
4.3
4.3.1
4.4
DRAINAGE
Supply and lay new pipe
300mm dia. Class 2 RCRRJ
Supply and install drainage pits
Supply and install Grated Gully pits
Supply and install mortated stone
pitching
Mortared stone pitching a
Drainage Swale
4.4.1
Tie into existing drainage path on site
UNIT
QTY
m
64
ea
1
m²
0
LS
1
PRICE ($)
5.0
PAVEMENT
5.1
6.0
ea
1
Tie into existing road/ intersections
m²
4170
Basecourse
BITUMEN SURFACING
6.1
Prime
6.2
Two coat seal
7.0
Supply and install extruded Semi-Mountable
kerb
m
205
m
118
100mm thick Concrete Path
m²
184
5.2
7.1
7.2
7.3
m²
4170
4170
m²
Supply and install kerb ramps
ea
1
NAME OF TENDERER
:
..........................................................................................................
:
.......................................................... DATE : ..................................
YRCC Carpark, York
Page 7 of 13
SCHEDULE OF PRICES
CIVIL WORKS
YRCC Carpark,York
Contract W-04645
ITEM
DESCRIPTION
UNIT
QTY
8.0
8.1
Install painted car bays (100mm)
m
563
8.2
8.3
Install hold (give way) line (thermoplast)
m
8.2
Install painted median island
m²
143
8.4
ea
0
8.5
Install painted disabled bay logo
ea
5
(thermoplast)
Install painted disabled shared space
m²
42
marking
Install W6-1A signs including steel posts
Ea
8
and footings
Install yellow marking to pedestrian
walkway as indicated on drawings (nonm²
108
slip thermoplast)
Pavement Dirtection Arrows (all types)
Ea
17
8.6
8.7
8.8
8.9
9.0
SERVICES
9.1
LS
1
Adjust existing drainage and services lids
10.0
MISCELLANEOUS
10.1
Install timber bollards
Ea
21
10.2
Wheelstops
Ea
5
PRICE ($)
11.0
PROVISIONAL SUM
11.1
PS
1
$10,000.00
NAME OF TENDERER
:
..........................................................................................................
:
.......................................................... DATE ....................................
YRCC Carpark, York
Page 8 of 13
SCHEDULE OF PRICES
FOR SEPARABLE PORTION C
CIVIL WORKS
YRCC Carpark,York
Contract W-04645
YRCC CARPARK, YORK: SEPARABLE PORTION C
ITEM
DESCRIPTION
UNIT
1.0
GENERAL ITEMS
QTY
% Total
Cost
1.1
Levies /Insurances
LS
100%
1.2
LS
100%
1.3
LS
100%
1.4
LS
100%
1.5
Site Facilities
LS
100%
1.6
Traffic Control
LS
100%
1.7
QA and testing
LS
100%
1.8
drawings (refer to clause 1.14)
LS
100%
LS
100%
1.9
PRICE ($)
2.0
2.1
SITE CLEARING
Remove and stockpile topsoil (100mm) and
353
m²
respread
3.0
EARTHWORKS
3.1
carpark earthworks
3.1.1
Cut to subgrade
m³
743
3.1.2
Fill to subgrade
m³
52
3.1.3
Subgrade preparation (road)
m²
5476
NAME OF TENDERER
:
..........................................................................................................
:
.......................................................... DATE ....................................
YRCC Carpark, York
Page 9 of 13
SCHEDULE OF PRICES
CIVIL WORKS
YRCC Carpark,York
Contract W-04645
ITEM
4.0
DESCRIPTION
4.1
DRAINAGE
Supply and lay new pipe
4.1.1
150mm dia. PVC
4.2
Supply and install drainage pits
UNIT
QTY
m
7
ea
0
m²
145
Supply and install Grated Gully pits
PRICE ($)
Supply and install mortated stone
4.3
pitching
Mortared stone pitching at start of swale and
4.3.1
as per drawings
4.4
Drainage Swale
4.4.1
Cut drainage swale drain
m
0
4.4.2
Supply and install ACO powerdrain s300k
m
13.5
5.0
5.1
6.0
PAVEMENT
Tie into existing road/ intersections
ea
1
m²
5476
Basecourse
BITUMEN SURFACING
6.1
Prime
6.2
Two coat seal
7.0
Supply and install extruded Semi-Mountable
kerb
m
300
m
186
100mm thick Concrete Path
m²
353
5.2
7.1
7.2
7.3
7.4
m²
5476
m²
5476
Supply and install kerb ramps
ea
4
NAME OF TENDERER
:
..........................................................................................................
:
.......................................................... DATE : ..................................
YRCC Carpark, York
Page 10 of 13
SCHEDULE OF PRICES
CIVIL WORKS
YRCC Carpark,York
Contract W-04645
ITEM
DESCRIPTION
UNIT
QTY
PRICE ($)
8.0
8.1
Install painted car bays (100mm)
m
814
8.2
8.3
Install hold (give way) line (thermoplast)
m
8.2
Install painted median island
m²
178
8.4
ea
2
8.5
Install painted disabled bay logo
(thermoplast)
ea
9
8.6
Install painted disabled shared space marking
m²
70
8.7
ea
24
Pavement Direction Arrows (all types)
9.0
SERVICES
9.1
LS
1
Adjust existing drainage and services lids
10.0
MISCELLANEOUS
10.1
Wheelstops
11.0
PROVISIONAL SUM
11.1
ea
14
PS
$10,000.00
1
NAME OF TENDERER
:
..........................................................................................................
:
.......................................................... DATE : ..................................
YRCC Carpark, York
Page 11 of 13
SCHEDULE OF DAYWORK CHARGES
FOR
CIVIL WORKS
YRCC Carpark York
(Refer to subclause 2.5 of the General Conditions of Contract)
Contract W-04645 - SEPARABLE PORTIONS A,B AND C
1.
LABOUR
The Tenderer must state in the table below the daywork charge out rate for all classifications of
labour involved in WUC. The charge out rate is deemed to include wages paid to each
classification of labour, overheads, administrative costs, site supervision, establishment costs,
attendance and profit in accordance with subclause 2.5.
CLASSIFICATION
2.
RATE PER HOUR
$
CONSTRUCTION PLANT HIRE
The Tenderer must state in the table below the hourly hire charges for the various classes of
constructional plant which it proposes to have on site to construct the Works and which may
be used to execute work on a daywork basis under subclause 2.5.
The hourly hire charges are payable for the hire of the constructional plant inclusive of costs
for operators, fuel, consumable stores and maintenance and overheads and profit.
Constructional plant working time only will be paid for under daywork.
ITEM
NO.
DESCRIPTION
RATE PER HOUR
$
NAME OF TENDERER
:
.........................................................................................................
:
.......................................................... DATE : .............................
_________________________________________________________________________________________
Page 12 of 13
SCHEDULE OF DAYWORK CHARGES
FOR
CIVIL WORKS
YRCC Carpark York
(Refer to subclause 2.5 of the General Conditions of Contract)
Contract W-04645 - SEPARABLE PORTIONS A,B AND C
(Refer to subclause 2.5 of the General Conditions of Contract (Annexure Part B))
3.
SERVICES AND FEES
The Tenderer must state below the percentage to be added to the amounts paid under
subclause 2.5, to cover overheads, administrative costs, site supervision, establishment costs,
attendance and profit, if the Principal directs daywork involving the provision of services,
payment of professional fees, or employment of subcontractors not otherwise included in the
Contract.
Percentage addition for services, subcontracts and professional fees ……........ per cent.
4.
MATERIALS
The Tenderer must state below the percentage addition to the actual cost of materials to be
supplied under subclause 2.5, to cover overheads, administrative costs, attendance and profit,
if daywork requiring the provision of materials is directed.
Percentage addition to the actual cost of materials supplied …............ per cent.
NAME OF TENDERER
:
.........................................................................................................
:
.......................................................... DATE : .............................
_________________________________________________________________________________________
Page 13 of 13
SHIRE OF YORK
CIVIL WORKS YRCC CARPARK, YORK
SEPARABLE PORTIONS A, B and C
FORM 2
INSURANCE
Name of Tenderer: ...............……………....................................................…………..........
The following information is to be provided.
PUBLIC LIABILITY
Insurer (Company): .............................................................................................................……
Policy No: ..........................................................................................................................…….
Extent of Cover: ..............................................................................................................…...….
Expiry Date: ..........................................................................................................................…..
MOTOR VEHICLES & MOBILE EQUIPMENT
Insurer (Company): ..............................................................................................................……
Policy No: ..............................................................................................................................…..
Extent of Cover: ......................................................................................................................….
Expiry Date: ...........................................................................................................................…..
WORKERS COMPENSATION
Insurer (Company): ....................................................................................................…..............
Policy No: ...................................................................................................................….............
Extent of Cover: ...........................................................................................................…........…
Expiry Date: .................................................................................................................…............
SHIRE OF YORK
FORM 3
TENDERER TO INFORM THEMSELVES FULLY
Name of Tenderer: .......................................................................................................
(Company Name if applicable)
In accordance with clause CT2 of the Conditions of Tendering, I have satisfied myself as to
Site conditions and interpretation of Tender Documents.
Tenderer's Signature: ...................................................................................................
Date: ........../........../..........
Company Represented: ................................................................................................
(if sub-contractor or otherwise):
Note: Tenders may be rejected if this form is not completed.
SHIRE OF YORK
FORM 4
INFORMATION TO BE PROVIDED BY THE TENDERER
Name of Tenderer: ................................................................................................................….
Details of Tenderer's proposed sub-contracts:
Names and addresses of proposed sub-contractors: ...................................................…..............
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
Work or Service proposed to be sub-let: ...........................................................................….......
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
…………………………………………………………………………………………………...
SHIRE OF YORK
FORM 5
EQUIPMENT/MANPOWER TO BE USED IN PERFORMING THIS SERVICE
(Where applicable list Type, Model and Year of Manufacture)
Name of Tenderer: .....................................................................................................................
Equipment:
..................................................................................................................….................................
.......................................................................................................................................................
.......................................................................................................................................................
.......................................................................................................................................................
.......................................................................................................................................................
.......................................................................................................................................................
.......................................................................................................................................................
.......................................................................................................................................................
.......................................................................................................................................................
.......................................................................................................................................................
Manpower:
...............................................................................................................................………………
.......................................................................................................................................................
.......................................................................................................................................................
.......................................................................................................................................................
.......................................................................................................................................................
.......................................................................................................................................................
.......................................................................................................................................................
.......................................................................................................................................................
SHIRE OF YORK
FORM 6
TENDERER'S OFFER
Name of Tenderer: ................................................................................................................…
I/We tender and offer to perform the works for the Principal at the Lump Sum and Schedule of
Prices tendered in Form 1 and in accordance with the Specification.
.....................................................
Signature
.......................................................
Official Position Held
(i.e. Director, Manager)
....................................................
Name (in block capitals)
.......................................................
Date
The Tenderer shall sign the tender. All signatures shall be witnessed.
Duly authorised to sign tenders for and on behalf of:
Registered Company Name: .............................................................................................….......
Registration Numbers: (ACN) ............................................... (ABN) .............…............…........
Trading Name: ..................................................................................................…………..…….
Address of Tenderer: ......................................................................................................…..........
Postal Address: ...................................................................................................................…......
Facsimile No: ...............................................................................................................................
Telephone No (business hours): ...................................................................................................
(after hours): ...................................................................................................
E-mail Address: …………………………………………………………………………………
............................................................
Signature of Witness
.............................................….…......
.............................................……..….
Address of Witness
..............................................................
Name of witness (in block capitals)
SECTION 5
CONSTRUCTION DRAWINGS

REQUEST FOR TENDER: 03-1516 CIVIL WORKS YORK

Transcription

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