- Inland Fisheries Ireland

Transcription

GUIDELINES ON PROTECTION OF FISHERIES DURING
CONSTRUCTION WORKS IN AND ADJACENT TO WATERS
INLAND FISHERIES IRELAND
2016
GUIDELINES ON PROTECTION OF FISHERIES DURING
CONSTRUCTION WORKS IN AND ADJACENT TO WATERS.
CONTENTS
1
Introduction
03
2
Obligations on Developers Designers and Contractors to Consult IFI
03
3
The Issues of Concern
03
4
Timing of Instream Works
05
5
Temporary Crossing Structures on Waters
05
6
River and Stream Permanent Crossing Structures
07
7
Construction Impacts
12
8
Dust Suppression and Water Abstraction
14
9
Planning, Design and Construction Issues
15
10
Repairs to Existing Bridges, Culverts and Scour Slabs
18
11
Pipeline Installation
20
12
Angling and Commercial Fishing Access
21
13
Provision of Documents
22
14
Contact Between Designers, Developers, Contractors and IFI
22
Appendix 1
Contact Details and Locations of IFI Regional Offices
24
Appendix 2
Relevant Legislation
26
Glossary
27
References
28
2
GUIDELINES ON PR
ROTECTIO
ON OF FIS
SHERIES DURING CONSTR
RUCTION WORKS IN
I
AND
A
ADJA
ACENT TO
O WATERS
1.
INTROD
DUCTION.
1.1
Inland
Fisheries
1.3
Ireland
(IFI)
is
respo
onsible for the protec
ction, mana
agement an
nd
conservation off the inlan
nd fisheries
s resource in
es
Ireland, which includes over
o
70,000 kilometre
of riv
vers and s
streams an
nd 144,000
0 hectares of
lakes
s.
The ag
gency is also respons
sible for se
ea
angliing.
These
e guideline s identify the main iss
sues
off concern in
n terms of constructio
on impacts and
th
heir prevention.
T
They set out
o
inter alia
re
equirementts in relatio
on to bridge
es and culv
verts
and the nee
ed for such
h structure
es to allow
w for
unhindered
upstrea m
and
downstre
eam
aquatic life
movement
m
of
o fish and a
e.
The w
waters con
ncerned contain a wid
de
range of fish species, which are particularrly
sensitive in terms of threats to th
heir physiccal
2
OBLI
IGATIONS
S
ON
DEVELOPERS
habittat and to w
water quality such as arise durin
ng
DESI
IGNERS A
AND CONT
TRACTORS TO
construction wo
orks in and adjacent to waters.
CONSULT IFI.
1.2
IFI poliicy is aim
med at maintaining a
act should be made with
w
IFI at the
Conta
2.1
throug
gh
ea
arliest pos
ssible stag
ge in the planning and
prese
erving the productive capacity of fish habittat
e works such as road
design proc
cess where
r
by avoiding habitat loss, and harmfful alteratio
on
co
onstruction,
to ha
abitat. Con
nstruction works
w
particularly thosse
bridges, the
e crossing of rivers
s/streams with
entailing the installation of
o new riverr and strea
am
pipelines and works o n and in the environ
ns of
cross
sing structu
ures and th
he realignm
ment of riv
ver
waters
w
are planned.
chan
nnels
to significanttly
enable thos
se concern
ned to com
mply with the
impa
act both in
n the sho
ort and long term o
on
provisions of
o the Fish
heries Acts
s and Habiitats
fishe
eries resourrces if they
y are not carried
c
out in
Regulations.
R
susta
ainable
have
e
fisheries
resource
e
the pottential
an environmenttally sensitive mannerr.
2.2
installa tion
of
and
culverts
Such co
onsultation will
In ad
ddition to tthe generall guidance and
re
equirementts detailed
d herein, there will be
design
and
construcction
issue
es
specific
c
to
in
ndividual prrojects and locations. In such ca
ases
IF
FI
will
issue
i
dettailed
ope
erational
and
co
onstruction requireme
ents.
A bro
own trout at the alevin sttage shortly after hatchin
ing.
This life stage iss very sensitiive to pollutio
ion and physic
ical
disturrbance.
3.
THE ISSUES O
OF CONCER
RN.
3.1
Damage
to
the
Aquatic
A
and
Asso
ociated Rip
parian Hab
bitat, e.g.
•
Remova
al and losss of instre
eam spawning
gravels and
a
larger sstones.
3
•
Loss
L
of submerged and
a
emerg
gent aquattic
3.3
Intro
oduction o
of Non Nattive Specie
es.
vegetation.
v
•
Invasive
Constr
ruction
Loss
L
or dam
mage to ba
ankside cov
ver includin
ng
Spec
cies
Sou
urce
removal of trees, shrrubs and bankside ro
oot
Plants, algae, fish
Earthm
moving
and she
ellfish.
equipmen
nt, pumps,
masses.
m
•
Undesirable
U
e
change
es
in
boats, ro
opes etc,
watercour se
previously used
morphology
m
y and hydro
ology.
perh
haps
unknow
wingly in
waters containing
invasive species.
Plants an
nd algae.
Imported materials
such as top soil.
Fu
urther info
ormation o
on invasive
e species their
t
im
mpact and control, and on bio-security
b
y is
av
vailable at www.inland
dfisheriesirreland.ie
Drip tray
t
is unders
rsized, dangerrously positio
oned and leaki
king
oil. Unacceptable
U
ppractice.
3.2
Pollutio
on of Wate
ers.
Polluta
ant
Examples of
Construction
Sourc
ce
Silts and s
solids.
Earthwork
ks, new
drainage networks
It is a serious
s offence too discharge deleterious
de
maatter
su
uch as oil cont
ntaminated res
esidues to watters.
a
and
instream
m works.
Cementittious
B
Bridge,
culv
vert and
residue
es.
drainage headwall
3.4
Constructio
on plant
Anti free
eze.
and equip
pment.
Wood
d
Treatment of new
preservattive.
timber fencing.
with
Up
pstream
and
Downstream Movemen
nt of Aquatic
Life.
constructio
on, etc.
Oils
O and gre
eases.
Interference
•
Improperly designe
ed or installed tempo
orary
and/or
permanentt
structure
es.
watercourse
cros
ssing
For ex
xample, ins
sufficient water
w
depth in
n culverts,, culverts with perc
ched
excessive slope.
inlets, ou
utfalls and e
s
4
•
Insufficient
water
depth
over
o
bridg
ge
5.
STRU
UCTURES O
ON WATER
RS.
aprons/scou
a
ur slabs.
•
Physical
P
TEMP
PORARY C
CROSSING
G
a
alteration
of
stream
m
channe
els
5.1
All
watercours
w
es
which
have
be
to
trraversed during consstruction projects
p
should
resulting in::
be effectively bridged prior to commencem
ment

Altered h
hydraulic characteristics.

Changes
s in stream
m profile, particularly in
off works.
width, depth, gradiient and cu
urrent speed
d.
There iss sometim
mes a serrious
misconceptio
m
on
that
in
installin
ng
tempo
orary
crrossing structures, th
he only iss
sue is keeping
water
w
flowin
ng from abo
ove a temp
porary cros
ssing
to
o below it.
Design a
and choice
e of tempo
orary
crrossing stru
uctures mu
ust provide for passag
ge of
fish and ma
acroinverte
ebrates, the requirem
ment
to
o protect im
mportant fissh habitats
s e.g. spawning
and over wintering are
eas, as welll as preven
nting
erosion
an
nd
ciircumstances,
co
ommercial
sedime
entation.
acce
ess
fishing
for
p
purposes
In
cerrtain
or
angling
may
also
be
re
equired.
Temporary
T
cro
rossing impasssable to fish life.
l
4.
TIMING
G OF INSTREAM WO
ORKS.
4.1
There a
are signific
cant variattions in th
he
timin
ng and duration of salmonid
s
(Salmon
(
an
nd
Trout) spawning activity throughout
t
the Repub lic
of Ireland. To minimise adverse
a
impacts on th
he
fishe
eries resou
urce works
s in riverrs, stream
ms,
wate
ercourses,
shou
uld
lakes,
normally
re
eservoirs
(exc
cept
in
and
ds
pond
exception
nal
circu
umstances a
and with th
he agreeme
ent of IFI) b
be
carried out duriing the period July-Se
eptember.
4.2
Temporary
Te
cro
ossing structture. Impasssable for aqquatic
liffe and emittiing silt to watters as consttruction equip
pment
trraverses the crossing. Una
nacceptable prractice.
The app
‘
for
f
instrea
am
propriate ‘window’
work
ks can vary
y depending on the nature
n
of th
he
5.2
fishe
ery resource concerne
ed and the existence of
watercourse
w
shall
other
approval off IFI as rregards siz
zing, locattion,
factors
such
as
s
catchme
ent
or
su
ub
catch
hment spec
cific Bye Laws and Reg
gulations.
No
temporary
y
be
e
crossin
ng
on
any
installed without
the
duration and
d timing.
5
The same
s
temporrary crossing
g location ass shown on tthe
previo
ious page, buut with a lad
aden dumper dislodging aand
causin
ng loss of covver material to
t waters.
The inevitable re
esult from the
t
crossing
g shown abov
ove.
Contin
inuous silt disscharges. Unaacceptable prractice.
5.3
A clear span temporary crossing cap
pable of carrrying
heavy
he
axle load
dings and longg wheel base vehicles.
5.6
The crossing of watercourse
w
es at naturral
fords
s is not perrmitted bec
cause of th
he amount of
unco
ontrolled
sedimentation
thatt
can
b
be
gene
erated.
5.5
free
The
the
this
The pre
eferred opttion is forr clear spa
an
‘bridge type’ strructures on
n fisheries waters.
w
5.4
Temporary
Te
cllear span ‘bbailey bridge
e’ ensuring
up
pstream and downstream
d
m
movement of
f aquatic life.
sttreamside fencing
fe
shoul
uld be 5 metres
m
from
watercourse,
wa
not immedi
diately alongsside as in
ph
hotograph.
prohibited.
ac
ccess diffic
culties precclude use of clear span
s
sttructures,
temporary
y
crossings
structures
sh
hall:
5.6.1 Comp
prise one o
or more me
etal or conc
crete
eation of fords
f
on streams
s
an
nd
The cre
riverrs through
h the intrroduction of stone
Wherre circumsttances suc
ch as space
e or
is
pipes
s, prefabri cated culv
verts or such
s
otherr material as IFI may
m
permitt of
minim
mum diame
eter 900 mm.
m
Pipes
s or
culve
erts may be
e vertically stacked.
5.6.2 Be la
aid in such
h manner as
a to main
ntain
the existing
e
stre
eam profile.
6
5.6.3
3 Ensure n
no significa
ant alteratio
on in curre
ent
speed
or
hydrau
ulic
particula
ar
not
result
depositio
on
or
e
erosion
downstrream
in
n
scourin
ng,
or
up
pstream
temporary
the
in
charac
cteristics,
crossin
ng
location..
5.6.4
4 Have capacity to convey
c
the full range of
flows in
ncluding flo
ood flows likely to b
be
encountered witho
out the cro
ossing bein
ng
overtopp
ped.
5.6.5
5 Be covered with clean inert material
m
succh
as to alllow for th
he safe cro
ossing of th
he
A crossing str
ructure overr a designated
d salmonid water.
w
Note:
N
terram
m covered ffencing, rein
nforced conccrete
trraffic barrier
rs and fall bac
ack from the watercourse.
w
widest items of plant and
d equipme
ent
without cover ma
aterial bein
ng dislodge
ed
and ente
ering waterrs.
5.7
crrossing
sttructures
It
is
ex
xceptional
The app
proach and
d departurre routes to
temp
porary
5.11
should
b
be
not
p
permissible,
circumsttances,
except
to
t
in
reposition
te
emporary crossing
c
strructures where these are
e.
not of a clea
ar span type
all
desig
gned and installed so
o that drain
nage will fa
away
y from the
e watercourse being crossed.
In
the event
e
that the fall of ground
g
doe
es not perm
mit
suffic
cient
con
ntrol
on
drainage,
6.
addition
nal
RIVE
ER AND ST
TREAM PER
RMANENT
CROS
SSING STR
RUCTURES
S.
earth
hworks setttlement are
eas shall be
e provided.
5.8
Tempora
ary crossing structure
es should b
be
fence
ed with terram or sim
milar material to preve
ent
wind blow carrrying dusts
s and othe
er potentia lly
pollu
uting matter to waters
s.
5.9
g. reinforc
ced concre
ete
Side armour (e.g
traffiic barriers) should be provided on
o tempora ry
cross
sing structu
ures to ensure machinery cann
not
drive
e over its edge, or force the discharge of
mate
erial from the bridge deck
d
to watters.
5.10
Is the culvert adequately si
sized?
h to empha
asise that site
s
selectio
on
IFI wish
for temporary
t
crossings should hav
ve regard to
all access and constructio
on needs ranging
r
fro
om
those
e of fencing contra
actors vehicles to th
he
longe
est wheelba
ase of multti-axle cran
nes.
6.1
habitat
Struc
ctures
or
sho
ould
create
not
b
blockages
damage
fish
to
and
fish
macroinvert
m
ebrate pas sage. Des
sign and ch
hoice
off structure should be
e based on its techn
nical
7
and
economic
c
feasibility
y
to
pas
ss
fish
an
nd
macrroinvertebrrates, the requiremen
nt to prote
ect
impo
ortant fish habitats e..g. spawnin
ng and ove
erwinte
ering areas, provisio
on in certa
ain areas of
angliing and commercial fishing
f
acce
ess includin
ng
boat access a
and prevention of erosion an
nd
sedim
mentation.
6.2
Culverts
s are the most freq
quently use
ed
riverr/stream
crossing
structures
and
a
are
associated with
h some of the most common
c
fissh
passage problems.
strettches
of
Excessively
Ex
lo
ong culvert rresulting in habitat losss and
re
educed produ
uctivity due to inadequate light penetraation.
Th
he culvertiing of lon
ng
fisheries
water
is
s
extreme
ely
6.4
Gene
erally,
briidges
and
d
bottom
mless
unde
esirable and
d can resu
ult in signifficant loss of
cu
ulverts are
e the bestt option fo
or maintaining
In the case of crossin
ng
natural strea
am channe l characteristics and have
h
struc
ctures ove
er fishery waters, th
he preferre
ed
th
he least impact on ha
abitat. How
wever, beca
ause
posittion is for c
clear span structures
s
(bridges), sso
off design and load
as not to interrfere in any
y way with
h the bed or
bottomless culverts
c
ma
ay not alwa
ays be suitable
bank
k of the wattercourses in question
n.
fo
or installattion particcularly on narrow river
r
valua
able habittat.
ons,
bearing considerati
c
ch
hannels, as
s foundatio
ons may en
ncroach on the
ch
hannel itse
elf and p ossibly result in future
sc
couring or erosion.
e
6.5
Takin
ng account of recent advances and
in
nvestigation
ns in the arrea of clima
ate change and
flood studie
es, designss should be
b such as
s to
ve
erifiably ha
ave carrying
g capacity for a 1 in 100
ye
ear fluvial flood flo
ow whilst maintaining a
minimum
m
fre
eeboard of 300 mm.
Excesssively wide culverts cann result in re
educed curreent
speed
d, ponding, and
nd siltation off instream gra
avels.
6.6
The Office
O
of Pu
ublic Works
s (OPW) is the
le
ead agency
y for flood risk management in the
Republic
R
of Ireland.
Design an
nd capacity
y of
sttructures must
m
also be
e in accordance with their
t
6.3
Bridge foundations should be designe
ed
re
equirementts.
IFI strrongly reco
ommends that
and positioned at least 2.5
5 metres frrom the riv
ver
co
ontact be made
m
with O
OPW at the
e earliest sttage
bank
k so as not to impact on
o the riparian habitatt.
in
n
the
planning
p
and
des
sign
proc
cess.
(w
www.opw.ie
e)
8
6.9
Culve
erts should be positioned where the
watercourse
w
is straigh test and aligned with
h its
bed.
An em
mbedded box
x culvert size
ed to match existing
e
strea
eam
profil
ile.
6.7
Clear
s
span
desig
gns
maintain
chann
nel
Off-line
O
culve
ert at constrruction stage
e back filled with
grravel. The siize range andd depth of fiill required will
w be
siite specific.
profile, do no
ot alter gradients, readily
r
pa ss
sedim
ment and debris and provide unrestricte
ed
passage for all size class
ses of fish by retainin
ng
6.10
the natural strream bed and gradient.
cu
ulverts, structures sshould be designed and
veloc
city
is
no
ot
changed
and
th
hey
Watter
can
b
be
desig
gned to ma
aintain the
e normal sttream widtth.
Foun
ndations sh
hould be positioned
p
at least 2
2.5
metrres from wa
aters.
6.8
Embedded box and
d pipe culv
verts are le
ess
prefe
erable to b
bridges and bottomle
ess culvertts.
Embedded culv
verts mustt maintain the naturral
chan
nnel
grad
dient,
confiiguration.
width
and
substra
ate
in
nstalled so as to:
6.10.1 Allow
w for the maintenance of channel
profile and existting gradient.
6.10.2 Be capable of passing such
s
debris
s as
might arise duriing flood flo
ow conditio
ons.
6.10.3 Ensure adequa
ate light penetration
p
n to
minim
mise loss in
n primary productivity
p
y.
They sh
hould be buried to a
minim
mum of 50
00 mm. be
elow the stream bed at
the natural grradient.
B
Box
and pipe
p
culverrts
mustt be sized to mainta
ain the natural strea
am
chan
nnel width. The gradient should
d not excee
ed
3%.
In th
he case of bridges and bottom
mless
The availability of suitably sized mater ial
(depending on hydraulic conditions
s) to initia
ate
"simulation" off the stre
eam bed is
i the mo
ost
6.10.4 Not result in damage to
o the ripa
arian
habittat
or
n
necessitate
construc
ction
within 2.5 metre
es of waterrs.
6.10.5 Provide at loca
ations spe
ecified by IFI,
angling
accesss
and/or
for
access
comm
mercial fish
hing purposes.
prefe
erable apprroach to es
stablish fish and faun
nal
passage throug
gh culverts.
9
Box culvert
c
positi
tioned at incoorrect level. Upstream fi
fish
passag
age is made d
difficult. Cuulvert invert should be 50
500
mm. below
b
existinng bed level and back fiilled with cleean
grave
el to match th
he existing sttream profile.
The
T smooth co
oncrete finish
sh is totally unsuitable
u
forr fish
paassage.
6.12
Pipe
co
onsidered
culverts
are
not
n
generally
acceptable
e
on
fish
heries
watters.
ffor
They are no
ormally onl y appropriate for use
e on
botto
omless culv
verts, IFI is prepare
ed in certa
ain
minor
m
waterrcourses an
nd drainage
e ditches wh
here
circu
umstances to consid
der propos
sals for th
he
th
hese
insta
allation of box or pip
pe culverts on fisheri es
siignificant in
n terms of ffisheries ha
abitat.
6.11
While
wate
ers.
the
prefe
erred
option
is
can be
demo
onstrated as
not
being
Thes
se may be
e installed
d subject to
struc
ctures being
sized
so
as
to
o meet
th
he
requirements at 6.10 in te
erms of cha
annel profille,
gradient, flood debris capa
acity, light,, access an d:
6.11.1 Be
pos
sitioned
s
such
that
both
th
he
upstream
m and dow
wnstream in
nvert shall b
be
500
mm.
below
w
downstrream
river
the
bed
ups
stream
in
nvert
an
nd
leve
els
respectiv
vely.
6.11.2 Never e
exceed a slope
s
of 5%
%, in whicch
circumsttances
ba
affles
generally
a re
Unacceptable
U
culverting
c
pra
ractice. These
se pipes are tootally
im
mpassable to fish.
f
required
d, and pre
eferably no
ot exceed a
slope off 3%.
hydraulic
As baffles can
n reduce th
he
efficie
ency
of
culvertts,
appropriiate capacity provision must b
be
included
d in the ove
erall design.
6.11.3 In the case of bo
ox culverts
s on anglin
ng
waters, be 3 meterrs in heightt.
6.13
Bank
k
protectio
on
works
s
are
o
often
re
equired up
pstream an
nd downsttream of new
sttructures,
to
ensurre
no
un
ndercutting
or
destabilisatio
on of eitherr the structture or ripa
arian
bank areas occurs.
In carry
ying out bank
b
protection works,
w
it is essential that la
arge
enough boulders are sselected an
nd strategic
cally
positioned, to
t ensure tthey canno
ot be underrcut.
Normally this entails p
part buryin
ng boulders
s up
to
o one third
d of their d
depth belo
ow stream bed
10
level and securring them into
i
their final positio
on.
In areas
a
of high wate
er energy, to ensu re
stabiility, boulde
ers size sh
hould be a minimum of
0.5 ton.
t
Revegetation
Re
of
o rock armouur facilitated
d by the placin
ing of
lo
ocally sourced
d topsoil (to ensure no im
mportation off non
lo
ocal grasses and
a shrubs) be
between each layer or cours
rse of
boulders
bo
at ins
stallation time
me.
6.15
b
in th
hese bank prootection work
ks are not larrge
The boulders
enoug
gh, not sunken
en below streaam bed level and
a likely to be
underrcut and disloodged in a stoorm event.
The height
h
to w
which rock armour is built
b
must
m
take account not only of the
e riparian zone
z
re
equiring
protection,
p
but
also
in
cerrtain
ciircumstances of the
e need to
o protect e.g.
kingfisher and sand m
martin habiitat.
In many
m
in
nstances, one
o
or two layers of armour willl be
su
ufficient to
o protect a
and stabilise the toe
e of
embankmen
nts while alllowing nestting.
w
level att a
Suitaably sized rocck armour buuilt to high water
locatiion influenced
d by tidal bacck-up.
6.14
To facilittate revege
etation, each course of
Visually
Vi
unsigh
htly stone fille
led gabion basskets.
bould
ders laid sh
hould be ba
ack filled with a layer of
top soil.
s
Selecttion of boulders in terrms of shap
pe
to fa
acilitate their placem
ment and stability
s
is a
majo
or
consideration.
Irregularly
shape
ed
bould
ders are ve
ery difficultt to work with
w
in term
ms
of bu
uilding multtiple stable courses.
6.16
Gabio
ons are nott a preferre
ed option when
w
it comes to bank protecction. They can easily
y be
va
andalised and
a
once th
he mesh is cut or broken,
baskets can collapse.
Gabion baskets
b
can
n be
unsightly and it is
difficult to successfully
11
estab
blish and m
maintain ve
egetation on side wallls.
at
Gabion baskets
s are norm
mally only acceptable
a
locattions where
e due to access
a
constraints it is
not possible
p
to install rock
k armour.
7.
CONSTR
RUCTION IMPACTS.
7.1
Uncured
d concrete can kill fis
sh, plant liife
and macroinverrtebrates by altering the
t
pH of th
he
wate
er.
Pre-c
cast
concrrete
shoulld
be
use
ed
all
when
never poss
sible, to eliminate the risk to a
form
ms of aquatic life.
7.2
Silt
S discharge
e minimisationn by providing
ng retention areas
a
to
o reduce disc
charge velocit
ity and allow settlement
s
d
during
raainfall events
s.
es
ge of silt-la
aden waters
s to fisherie
Discharg
strea
ams is of p
particular concern.
c
Silt
S can clo
og
7.3
Disch
harges of fuels and
d oils can be
fish spawning b
beds and ju
uvenile fish
h species a re
directly toxic to aquattic life and
d at sub le
ethal
particularly
le
evels lead to
t tainting of fish tiss
sues, rende
ering
sensitive.
Plant
P
an
nd
macrroinvertebrrate communities can
n literally b
be
fish inedible
e.
blank
keted overr, and this
s can lead
d to loss or
in
nterfere witth the diffu
usion of ox
xygen from the
degrradation of valuable habitat.
h
It is importa nt
attmosphere into wate rs and in extreme ca
ases
to in
ncorporate best prac
ctices into constructio
on
re
esult in oxy
ygen deplettion.
meth
hods
to
minimise
discharges
Oil filmss on waterr can serio
ously
of
silt/s
suspended solids to waters.
Consttruction sitess require carreful manage
ement. Is th
this
the optimal
op
haul rooute in termss of impact miinimisation?
The
T practical impact
i
of pooor silt controll.
7.4
IFI re
equire that :
n cast-in-pllace concre
ete is requiired,
7.4.1 When
all work
w
must be done in the dry and
ated from
effecttively isola
m any flow
wing
water (or waterr that may enter streams
12
and rivers) for a period sufficient to
alter the pH off any rece
eiving fishe
eries
ensure n
no leachate
e from the concrete.
c
waters by more
e than +/- 0.5
0 pH units.
Silt control
c
pond.
d. The blue hose conveyiing pumped ssilt
laden
n waters has its outlet se
ecurely ancho
ored within tthe
stone
e aggregate thereby diss
ssipating ener
ergy, minimisi
sing
disturrbance, and ppreventing poond contents being
b
disturb
bed
and re-suspended.
re
Silt
S control po
ond. Note hos
ose conveying pumped silt laden
l
waters
wa
with its
ts outlet posittioned within
n the gravel mound
m
th
hus ensuring no
n disturbancce of pond con
ontents.
7.4.5 Silt traps/settle
ement ponds or other
forms
s of conttainment and
a
treatm
ment
shall be constru
ucted at loc
cations thatt will
interc
cept run-offf to stream
ms. Traps shall
s
not be
b construccted immediately adjacent
to na
atural wate
ercourses. A buffer zone
z
should remain b
between th
he silt trap and
the watercourse
w
e with natu
ural vegeta
ation
left
intact.
Alternatively,
impo
orted
mate
erials such as terram
m, straw ba
ales,
coars
se to fine gravel sh
hould be used
u
either separate
ely or in combination
c
n as
The drip tray is undersizeed,
Poor work practtice.
oo light a matterial, and acc
cordingly over
erly
consttructed of too
flexib
ble, easily dam
maged, and unnlikely to reta
ain oil residuees.
appro
opriate
to
o
remove
suspen
nded
matte
er from disscharges.
7.4.6 The level of ssuspended solids in any
discharges
2
7.4.2
fisheries waters
to
as
a
No direc
ct discharg
ges be mad
de to wate
ers
conse
equence off construction works shall
s
where tthere is po
otential forr cement or
not exceed
e
25 mg/l, norr result in the
residues
s in discharrges.
deposition of ssilts on gravels or any
7.4.3
3 Designated imperm
meable cem
ment washo
out
areas must be prov
vided.
7.4.4
4 The pH of any an
nd all disch
harges mad
de
all
from and during construction
n works sha
be in th
he range 6.0
6
- 9.0 units and n
not
element of the a
aquatic florra or fauna.
o
and fu
uels shall be stored
d in
7.4.7 All oils
securre
bunded
d
areas and
a
care
and
atten
ntion taken
n during refuelling and
maintenance
o
operations..
Partic
cular
13
attention
n shall be paid to gradient
g
an
nd
perso
ons and prroperty, tha
at dust con
ntrol
ground conditions which could increasse
meas
sures some
etimes may
y be requiired.
the risk of discharg
ge to waterrs.
This is normally
y achieved by abstrac
ction
from watercourrses adjace
ent to the site
all
7.4.8
8 Tempora
ary oil inte
erceptor fa
acilities sha
of earthworks. In such circumstance
es it
be insta
alled and maintained
d where siite
is essential tha t the aqua
atic resourc
ce is
works in
nvolve the discharge of drainag
ge
prote
ected
water to
o receiving rivers and streams.
and
that
ov
ver-abstrac
ction
does not take place esp
pecially in low
flow summer
7.4.9
9 There shall be no visible oil film in an
ny
conditions
s at locattions
supporting impo
ortant fish populations
s.
discharg
ges from constructio
on works to
waters.
7.4.1
10 That
all
facilities
s
containment
are
and
d
reg
gularly
treatme
ent
ins
spected
an
nd
maintain
ned.
7.4.1
11 Waterprroofing
and
other
chemiccal
treatment to structtures in clo
ose proximiity
to waterrs shall be applied
a
by hand.
7.4.1
12 Hydrose
eeding shall not be ca
arried out in
close prroximity to
o water.
Contin
nuous abstrac
action using submersible
s
p
pump.
No scr
reening in plaace to prevent
nt the entry of e.g.
juveniile fish specie
ies to the pum
mp. Unaccept
ptable
practiice.
as
These area
shall be seeded by hand.
8.2
IFI re
equire that :
8.2.1 Wate
er abstractiion for dust suppres
ssion
shall not take p lace from any
a
water body
b
conta
aining
or
suspected
d
to
con
ntain
aquatic invasive
e species.
8.2.2 Abstrraction is confined to only th
hose
Terram lin
ined (to preve
ent erosion) silt
s control poond
outlet ch
hannel showin
ing gravel ac
cting as filtter
medium fo
for silt removaal.
larger waters iidentified and
a
agreed
d as
being
g of sufficie
ent size and
d volume so as
to allow abstrraction witthout adverse
impact.
8.
DUST
SUPPRESSION
AN
ND
WATE
ER
ABSTRA
ACTION.
8.1
It
is
accepted
8.2.3 Abstrraction poin
nts shall be
b screened
d so
as to ensure tha
at fish and aquatic pla
ants
in
the
interests
of
protectio
on of terre
estrial ecos
systems an
nd
are not remov
ved from waters in the
abstrraction proccess.
so as to avoid a wiide range of
o impacts o
on
14
9.4
Temp
porary long
g term by--pass channels
sh
hall be excavated
and sized
d such as
s to
re
eplicate ex
xisting upsstream and
d downstre
eam
ch
hannel con
nditions ass regards width, de
epth,
gradient
and
instre
eam
mate
erials.
Wh
here
necessary, rock
r
armou
uring will be
b provided
d. In
te
erms of ca
apacity, by
y-pass channels shall be
siized so as to accomm
modate such flood ev
vent
as
s might reasonably be expec
cted based on
A scrreened abstrraction point using terram
m fitted overr a
fabric
icated support
rt frame.
ex
xamination
9.1
hy
ydrometric
data
and
ca
atchment characterist
c
tics.
9.5
9.
of
In ne
ewly consttructed by--pass channels
PLANNI
ING, DESI
IGN AND
th
he process of divertin
ng waters and
a
associa
ated
CONSTR
RUCTION ISSUES.
movement
m
of
o fish stoccks may only take place
p
The preferred posiition from the fisherie
es
perspective is for clear span
s
river and strea
am
cross
sing
structures
th
hereby
allowing
ffor
insta
allation/construction without th
he need
under the direction and
d supervision of IFI or
o its
ag
gents.
Ad
dequate ad
dvance notiice of all such
s
proposed wo
orks shall b
be given to IFI.
to
alterr or move e
existing wattercourses. In the ca se
of bridges
b
and
d bottomle
ess culverts, designe
ers
shou
uld
ensure
e
propos
sals
are
such
th
hat
foundations and abutmen
nts including wing wa lls
can be constructed witthout ente
ering on
or
dama
aging the rriparian zone, or exis
sting chann
nel
profile.
9.2
on-line cons
struction is proposed or
Where o
takin
ng place, it may be
b
necessa
ary for IF
FI,
follow
wing an assessmen
nt of on the groun
nd
cond
ditions with
h the con
ntractors involved,
temp
porarily
remove
using
to
ellectro-fishin
ng
equip
pment, fish
h from the reaches
r
inv
volved.
9.3
Where
on
line
box
or
pipe
p
Extreme
Ex
mean
nders installeed during exc
cavation of a new
ch
hannel to ov
vercome exce
cessive gradie
ient betweenn the
orriginal course
e of the strea
eam (in the ba
ackground att tree
lin
ne) and the point
p
of entryy of the newly
ly created cha
hannel
to
o a culvert (in
n foregroundd under the tim
imber fencing
g). In
th
his instance there was inadequate provision att the
pllanning and de
esign stage fo
for the necesssary land take
e.
culve
ert
construction is proposed, it will be necessary to
insta
all a tempo
orary by-p
pass chann
nel so as to
allow
w for stre
eam contin
nuity and the norm
mal
upstream and downstrea
am movem
ment of fissh
and aquatic life depend
ding on location an
nd
seasonality.
9.6
Wherre tempora
ary short term by-p
pass
ch
hannels are required
d for a number of days,
th
hese shall be excavatted and siz
zed such as to
ac
ccommodate
such
flood
eve
ent
as
m
might
re
easonably be expectted over the period
d in
question.
15
9.7
where
Where a structure installed on line is
completed
within
the
period
during
(July-September), flow may be re-established
and
the
excavated and sized such as to replicate
and
by-pass
decommissioned immediately on completion of
the fish removal with the area levelled and
landscaped as appropriate.
completed
within
the
period
during
may
not
except
in
channels designed and installed to link into the
original stream channel
9.10
IFI
require
box
and/or
pipe
culverts are installed off-line on fisheries waters
that:
9.10.1 Particular attention shall be given by
designers and contractors to survey preexisting
stream
locations,
upstream
bed
levels
taking
and
downstream
at
account
appropriate
of
the
requirement to ensure newly installed
box or pipe culverts are lain with their
invert level 500 mm. below bed level, so
that in overall terms the newly created
depth,
material in the newly formed channel is
unsuitable in terms of fish habitat.
9.11
Where
as
an
exceptional
measure
consequent on limited land availability or other
space constraints a culvert having a gradient
greater than 5% is permitted, IFI require as
follows:
9.11.1 Water
where
width,
required where IFI determine that the
for such instream works.
can be altered and new approach/departure
regards
clean round gravel in such size range as
new structure until the next approved ‘window’
IFI approval), the course of the existing stream
as
channel
filled to a depth of up to 500 mm with
exceptional
and a structure is constructed off-line (subject to
conditions
downstream
for newly installed culverts are back
which
Where on-line construction is not feasible
and
existing
9.10.3 The approach and departure channels
circumstances be re-established through the
9.9
upstream
with
the new channel.
instream works normally may be undertaken,
flow
compatible
and meanders shall be incorporated into
notice to IFI and under its supervision.
Where a structure installed on line is not
be
gradient and instream materials. Bends
Such works may
only take place following the giving of advance
9.8
that
for newly installed culverts shall be
the temporary by-pass channel back to the
channel,
on
9.10.2 The approach and departure channels
through the new structure, fish transferred from
original
improve
which it replaces.
which
instream works normally may be undertaken
appropriate,
velocity
through
the
culvert
should not exceed 1.2m/sec. in the case
of salmonid habitat and 0.8 m/sec. in
the case of cyprinid habitat.
9.11.2 Baffles should be provided within the
culvert structure to locally reduce flow
velocity
thus
aiding
fish
swimming
upstream without undue stress.
9.11.3 The
entry
and
exit
points
of
the
structure must be drowned out to a
minimum depth of 150 mm. in the case
of salmon waters and 100 mm. for trout
waters.
section of stream shall replicate and
16
9.11.4 Where c
culvert gra
adient is too
t
steep to
achieve backwatering, the downstrea
am
water le
evel should be raised by providin
ng
one or more pon
nding weirs
s below th
he
culvert outfall.
Ponding weirs
w
shou
uld
have fis
sh notches to facilitate upstrea
am
moveme
ent and the
e pools form
med by the
em
should
provide
resting
and
take-o
off
condition
ns for fish.
9.12
The fittin
ng of mesh
h or screens
s to culvertts,
albeiit with the intention of
o interceptting instrea
am
debrris is prohib
bited.
9.13
Newly
ed
constructe
river
and
a
strea
am
chan
nnels shall have banks
s battered to a finishe
ed
angle
e of not greater than
n 45◦ on on
ne bank an
nd
Looking
Lo
from upstream tow
owards a culvvert arrangem
ment.
Moderate
M
and flood flows aare conveyed
d in the right hand
cu
ulvert. Entry
y to that culv
lvert is dictat
ated by the invert
in
an
nd contour of
o the rightt hand portiion of the newly
n
crreated river channel. T
The left han
nd bank finiished
batter
ba
angle is
s approx. 45◦.. The first po
ortion of the right
hand
ha
bank to convey the m
moderate flo
ow is battere
ed to
ap
pprox. 30◦. The
T extreme rright bank arrea is battere
ed to
ap
pprox. 45◦ to
o convey floodd flows.
not greater tha
an 30◦ on the opposite bank, ((to
allow
w for mainttenance of a low flow
w channel, a
an
all
overflow and a flood flow channel). Banks sha
9.14
be top soiled a
and seeded
d so as to
o ensure th
he
IF
FI, be plantted along n
newly created channels so
grow
wth and de
evelopmentt of a broad range of
as
s to provid
de a mixtu
ure of dapple and sh
hade
local grasses and shrub
bs thereby
y facilitatin
ng
co
onditions.
deve
elopment off stable ban
nk root stru
uctures.
meters
m
from
m the waterccourse channel.
9.15
Broad
dleaves sh all, where prescribed
d by
Planting sshall be a minimum of 5
In the case of cculverts, low
w flows can
n be
ac
ccommodated
sttructure,
in
a
an
thereby
approp
priately
ssustaining
the
s
sized
fishe
eries
re
esource. Moderate
M
a nd flood flows should
d be
directed
th
hrough
a
culvert
that
t
becomes
operable on
nly at a p
pre-determiined discha
arge
le
evel. Mode
erate and fflood flow culverts
c
should
be installed such that the culvertt empties in
n its
entirety whe
en the flood
d has passe
ed.
Well vegetated newly estab
blished river channel, wi
with
broad
dleaves plante
ted to withinn 5 meters of
o the overfllow
chann
nel. The roott structures aid
a bankside stability.
s
9.16
To
aid
in
the
colo
onisation
and
development of newly created riv
ver channells, it
is
s desirable
e to transsfer established ripa
arian
plants, shru
ubs and trrees togeth
her with liv
ving
ro
oot structures as welll as boulde
ers, stones and
gravels from
m decommiissioned to new channels
where
w
they can be p
positioned, inserted and
re
eplanted as
s appropriatte.
17
epair
re
work
ks.
methods
m
fo
or
The
such
most
w
works
commonly
include
u
used
press
sure
grouting, guniting and pointing off joints
Newly
y created cha
hannel. The riparian
r
grassses on the rigght
bank have been tr
transferred from
f
the prev
evious course of
the now
n
redundannt original cha
hannel. The root
r
structurres
stabil
ilise the bankk area while the
th grasses prrovide a degrree
of cov
over and shade
de and provide
e habitat for aquatic inseccts
which
h form part off the food foor fish.
9.17
In the c
case of new
wly created
d stream an
nd
Grout
Gr
loss to waters is noormally stoppe
ped by placing
g dry
ce
ement over the
t leak, withh sand bags on
o top to resstrict
grrout flow unttil the leak soolidifies. (Th
his photograph
h was
taaken after water
w
flow was re-esta
ablished folloowing
so
olidification of
o the grout.))
riverr channels IIFI require that:
9.17.1 Such tra
ansfer of rip
parian plants, trees an
nd
instream
m materiall(s) as ne
ecessary,
is
carried o
out under IFI's
I
direct supervision
n.
s are remov
ved from th
he
9.17.2 Gravels and stones
dried out river channels
c
and
a
secure
ely
stored ffor re-use in the ne
ewly create
ed
10.2
The concerns a
as regards
s sensitivity
y of
aq
quatic
life
to
po
ollutants
and
phys
sical
disturbance set out ea
arlier in this
s documen
nt all
apply, partic
cularly as rregards los
ss of grout and
gunite rebo
ound, both
h of whic
ch are highly
alkaline.
river cha
annels.
9.18
Stock p
proof and mammal
m
proof
p
fencin
ng
shall not cause an obstruc
ction to fish
h passage or
angliing.
9.19
bursed the cost of fissh
IFI shall be reimb
remo
oval and re
eplacementt operation
ns associate
ed
with river and stream div
versions and associate
ed
work
ks.
Repairs
Re
to a single archh bridge and
d scour slab with
sttream flow piped from
m upstream to downsttream
(fforeground) during
d
both grrouting and slab
sl repair.
0
10.0
REPAIR
RS
TO
E
EXISTING
BRIDGE S,
CULVER
RTS AND SCOUR
S
SLA
ABS.
10.3
10.1
There are within Ireland very many o
old
stone
e bridges in need of strengtthening an
nd
Grouting is a h
high risk prrocess, as it is
not always possible
p
to pre-determ
mine the ro
oute
th
hat grout will
w follow.
It may travel thro
ough
18
fissures and ap
ppear upstrream or do
ownstream of
the structures under repair, sometimes metr es
from
m
the
ation
loca
of
vigila
ance is req
quired.
Particul ar
injection.
Du
uring groutt injection at
leastt one mem
mber of a repair crew
w should b
be
close
ely
monitoring
for
grout
losses
l
bo
oth
upstream and downstre
eam of the structurre.
Porta
ys
able pH m
monitoring facilities
f
sh
hould alway
be av
vailable and staff train
ned in its use.
10.4
Where
the
struc
cture
to
be
ed
groute
comp
prises a number of arches, water flow shou
uld
be diverted
d
aw
way from th
he arch be
eing repaire
ed
so as to allow working in
n the dry. Diversion of
Gunite
Gu
reboun
nd on a streaam bed wherre no precauutions
were
we
taken to
o prevent its
ts entry to waters.
w
Reb
bound
having
ha
a pH ›11
11.5 would havve entered th
he actively floowing
sttream with diire environmeental conseque
ences.
wate
er by mean
ns of temp
porary dam
mming shou
uld
be undertaken.
u
.
Sand ba
ags in conjjunction wi th
e.g. plastic she
eeting, marrine plywoo
od and oth
her
suita
able materiials may be
b used.
A number of
manufacturers provide he
eavy duty rubber typ
pe
aqua
a dams which can read
dily be deployed, linke
ed
together and fiilled on site
e with river water th us
form
ming a very
y effective seal
s
to a bunded
b
are
ea.
While
e such dam
mming and diversion of
o water as is
required will no
ormally be only for a short perio
od,
the dam or b
berm mustt nonethele
ess be hig
gh
10.6
works
w
In all instancess of gunitiing and re
epair
including
rep
pointing
and
a
maso
onry
clleaning, the
e entirety o
of the area
a of water over
o
which
w
work
ks
are
ta
aking
plac
ce
should
be
protected from gunite
e rebound
d, mortar and
ve
egetation loss by insstallation off a sealed and
se
ecure deck
king which
h shall exttend upstre
eam
and downstrream the sstructure co
oncerned so
o as
to
o ensure no
o losses to water.
enou
ugh not to be over to
opped in the event off a
rainffall event and increase
ed water lev
vels.
10.5
Where a single arch structu
ure is und
der
repair, to achie
eve grouting
g in the dry
y, water ma
ay
be diverted
d
fro
om upstrea
am to dow
wnstream b
by
means of a secure flu
ume arran
ngement,
or
throu
ugh piping,, or in very
y limited cirrcumstance
es,
by means
m
of over pum
mping.
to
Screening
S
preclude entry of aquatic life to pum
mps must b
be
carried out.
Apron/scour
Ap
slab
s
inaccessiible on its do
ownstream ennd to
fiish life bec
cause of thhe extent of
o perching and
im
mpassable du
ue to a com
mbination of excessive water
w
ve
elocity and lac
ack of water ddepth across its surface.
10.7
Appro
oved
form
ms
of
sc
caffolding
are
re
equired to support
s
deccking. It is
s essential that
19
the decking
d
com
mpletely ca
aptures all falling debrris
back-flooding the aprron thereby
y rendering it
and rebound. All materials capturred must b
be
passable.
remo
oved for safe disposal.
10.8
Repairs
to
bridge
10.12 The installation
n of baffles can as
ssist
aprons//scour
sla bs
where
w
excessive
wa
ater
veloc
city
over
an
mustt be underrtaken so as
a to ensure upstrea
am
apron/scour slab proh
hibits free upstream fish
all
and downstream
m passage of fish is possible
p
in a
movement.
m
Baffles sh
hould be po
ositioned so
o as
flow
b
be
rest
to
o reduce velocity and
d provide temporary
t
exercised to e
ensure perrching does not resu
ult
areas for weaker fissh attemp
pting to swim
wherre new conc
crete slabs are poured
d.
upstream.
condition
ns.
Partiicular
care
e
must
Low level stone weirs install
lled on a sa
almonid nurseery
streaam to back water the bridge apro
on /scour sl
slab
origin
nally installed
d at too high a level.
10.9
Large
La
stone baffles
b
held in position on
o concrete apron
a
with
w
stainless steel
s
dowel ro
rods drilled in
nto both the apron
a
an
nd stones. (Poor
(P
placemeent of the livvestock fencin
ing as
sh
hown in the photographh has the po
otential to cause
c
blockage
bl
by ca
atching debriss.)
Existing stream bed
b
materrials (ston es
and boulders de
epending on
o condition
ns) should b
be
set into new concrete aprons/sla
abs thereb
by
11.0
PIPE
ELINE INST
STALLATIO
ON.
providing for no
on uniform baffled flo
ow of varyin
ng
11.1
In th
he case of pipeline crrossings un
nder
depth across the structure which will
w allow ffor
fisheries wa
aters, the preferred method is
s by
the weakest ffish specie
es to swim
m upstrea
am
way
w
of tren
nchless cro
ossings usiing techniq
ques
throu
ugh the dee
eper water area.
su
uch as ho
orizontal d irectional drilling, au
uger
10.10 Scour s
slabs should be dishe
ed so as to
provide a deep
per zone an
nd consequently deep
per
wate
er to facilita
ate fish pas
ssage.
boring or micro-tunne
m
elling.
ad
dvantages from use of such methods.
fisheries res
source, wo
orks do no
ot have to
o be
co
onfined
render
period.
poo
orly
installed
apron
n/scour
sla
ab
passable, espec
cially wherre it has be
een installe
ed
at to
oo high a level.
A
Apart
frrom the ob
bvious avoi dance of impacts on the
10.11 It is diffficult and costly
c
to retrospective
ely
a
There are many
m
In some in
nstances th
he
one or mo
insta
allation of o
ore low lev
vel weir typ
pe
11.2
to
o
the
Ju
uly-Septem
mber
‘wind
dow’
ch as site size
Wherre circumsttances suc
and contou
ur or the
existence
e of buildings
struc
ctures in th
he river dow
wnstream may
m
assist in
2
20
preclude trenchless methodologies, open cut or
11.4.1 Water shall be diverted from upstream
to downstream the pipeline crossing
trench type crossings may be undertaken.
11.3
location by means of a secure open
In the case of trenchless crossing of
flume arrangement, or through piping,
waters IFI require as follows:
or in limited circumstances, by means of
over pumping.
11.3.1 Locations for drill rig positioning and
pipeline pull areas shall be chosen or
engineered such that the fall is away
11.4.2 Screening to preclude entry to pumps of
aquatic life must be carried out.
from the waters in question, thereby
facilitating
installation
of
pollution
11.4.3 The
being
crossed
shall
be
effectively dammed both upstream and
containment and control facilities.
downstream of the trench location so as
11.3.2 Where drilling fluids are being returned
to ensure that works are undertaken in
for cleaning and re-use or recirculation
the dry.
through a temporary fluid return line,
pneumatic leak testing shall be carried
11.4.4 Where
concrete
ballast
is
used
to
out to confirm the integrity of the return
prevent pipelines rising as a result of
line.
buoyancy, it should be precast.
the
11.4.5 Following completion of backfilling, river
running of a return fluid line across the
bed and banks shall be reformed to
bed of the waters being under bored, the
match their original profile.
11.3.3 Where
circumstances
necessitate
pipeline shall be sunken and weighted
down by means of prefabricated concrete
collars or by sand bags attached using
web construction straps, or such other
means
as
anchored.
appropriate
and
11.5
will
temporarily
normally
remove,
be
necessary
using
to
electrofishing
equipment, fish from the reaches involved.
Marker buoys and on-land
12.
not interfere with or constitute a fouling
risk to licensed and legally used fishing
equipment.
AND
COMMERCIAL
12.1
In circumstances where crossings of
important angling waters are concerned, it will
often be necessary to provide for angling
11.3.4 Spent drilling fluids including separated
materials
ANGLING
FISHING ACCESS.
fluid return pipelines and markers shall
drill
It
securely
marker posts will be required and all such
shall
be
contained
in
secure bunded areas for off-site disposal
at a licensed disposal facility.
11.4
waters
In the case of open cut or trench type
crossing of waters IFI require as follows:
access to and from stretches of water during
the construction phase of projects.
important
to
note
that
fishing
rights
It is
are
property rights and that it is a legal right for
anglers
to
access
fisheries.
Additionally,
certain commercial fishing activities may have
entry and access requirements.
In such site
specific circumstances, IFI will issue project and
location specific requirements.
21
13.1.2 Easting and no
orthing coo
ordinates (IIrish
Grid Ref).
13.1.3 Dime
ensions
length
in
ncluding
and
height,
width,
w
of
gradient
propo
osed
structures and tthe estimatted discharg
ge.
13.1.4 A description o
of the proposed struc
cture
includ
ding its sha
ape.
13.2
A tida
dal water with
h access for vehicles
v
and on
o the opposi
site
side, access
a
for annglers.
Contrractors/dev
velopers sh
hall provide
e or
have provide
ed to IFI:
13.2.1 In the case of rroad constrruction, a copy
c
of
12.2
IFI require:
12.2.1 In
the
case
Discov
very
1:50
0,000
map(s)
show
wing the pro
oposed road
d scheme.
of
permane
ent
crossin
ng
13.2.2 In
structure
es on watters recognised as of
angling
the
t
importanc
ce,
that
a
the
t
case
of
road
constructtion,
engin
neering dra
awings and
d OS maps in
minimu
um
A3 siize showing
g mainline and side road
r
walkway
y through or under the
t
structu re
plans
s,
1.5 metters in wid
dth and 2.5 meters in
locations where
e watercou
urse cross
sings
height b
be provided. The walk
kway shall b
be
and drainage
d
isssues arise.
chainag
ge
and
prrofiles
for
all
self draining and have a non slip
s finish.
13.2.3 Engin
neering dra
awings and
d OS maps in
12.2.2 In the case of a bridge spanning a
and
A3 size
s
of all crossing structures
s
specific salmon angling
a
site, up to 7
pipelines in fi nal proposal stage for
meters clearance above watter level an
nd
consttruction.
in the case of trrout anglin
ng, up to 4
dimensions,
metres c
clearance to allow cas
sting.
where necessarry gradientt expressed
d as
shall
These
se
etting
outt
include
and
points,
a perrcentage.
13.2.4 Such
13.0
0
PROVIS
SION OF DOCUMENT
D
TS.
13.1
es
In the case of sttructures and
a
pipeline
other
statements
details
ass
and
may
metthod
be
reasonably
required.
cross
sing waters
s, IFI shall be provid
ded in Exccel
all
sprea
adsheet fo
ormat with precise details
d
of a
wate
ercourse
strea
ams.
crossings
including
g
season
nal
The spreadshe
eet shall in
n respect of
14.0
identifica
ation of the
e location.
BE
ETWEEN
DEVE
ELOPERS,
each
h watercourrse contain:
13.1.1 The num
mber, code or othe
er means of
CONT
TACT
DESIGNE
ERS,
CONTRA
ACTORS
A
AND
IFI.
14.1
to
o
IFI is
s committe
ed in the na
ational inte
erest
working in
manner
m
witth
a
all
po
ositive
rel evant
and
coopera
ative
parrties
includ
ding
2
22
representatives of State and public authorities
undertaking works in order to ensure that
impacts on the fisheries resource are minimised.
IFI is obliged to ensure that all structures are
designed, installed and maintained so as to
ensure
the
free
upstream
and
downstream
movement of aquatic life and the sustainable
maintenance
of
the
aquatic
and
associated
riparian zone.
14.2
IFI require that contact be established
and maintained between senior representatives
of the developer, designer and contractor with
responsibility for earthworks, structures and
environmental management issues and relevant
river basin district personnel in advance of
commencement and for the duration of the
specified construction project.
14.3
IFI has offices located within each of the
River Basin Districts situated wholly or partly in
the Republic of Ireland.
Contact details and a
map showing the locations of IFI’s regional
offices and areas covered are given in Appendix
1.
14.4
of
Responsibility for waters in the Republic
Ireland
which
form
parts
of
the
North
Western, Neagh Bann and Shannon International
River Basin Districts lies with IFI Ballyshannon,
IFI Blackrock and IFI Limerick respectively.
23
APPENDIX 1
CONTACT DETAILS AND LOCATIONS OF IFI REGIONAL OFFICES
Director,
Inland Fisheries Ireland – Dublin,
Eastern River Basin District,
3044 Lake Drive,
Citywest Business Campus,
Co. Dublin.
Email: [email protected]
Tel: +353 1 2787022
Fax: +353 1 2787025
Director,
Teach Breac,
Inland Fisheries Ireland – Clonmel,
Earl's Island,
South Eastern River Basin District,
Galway,
Anglesea Street,
Ireland.
Clonmel,
Co. Tipperary,
Tel: +353 91 563118
Ireland.
Fax: +353 91 566335
Tel: +00 353 52 6180055
Fax: +00 353 52 6123971
Tel: +353 61 300238
Fax: + 353 61 300308
Director,
Inland Fisheries Ireland – Galway,
Western River Basin District,
Director,
Inland Fisheries Ireland – Ballina,
Western River Basin District,
Director,
Ardnaree House,
Inland Fisheries Ireland – Macroom,
Abbey Street,
South Western River Basin District,
Ballina, Co Mayo,
Sunnyside House,
Ireland.
Macroom,
County Cork,
Tel: +353 96 22788
Ireland.
Fax: +353 96 70543
E-mail: [email protected]
Tel: +353 26 41221
Fax: +353 26 41223
Director,
Inland Fisheries Ireland - Ballyshannon,
North Western International
Director,
River Basin District,
Inland Fisheries Ireland – Limerick,
Station Road,
Shannon International River
Ballyshannon,
Basin District,
Co. Donegal,
Ashbourne Business Park,
Ireland.
Dock Road,
Limerick,
Tel: +353 71 9851435
Ireland.
Fax: +353 71 9851816
24
25
APPENDIX 2
RELEVANT LEGISLATION
The Arterial Drainage Act 1945.
The Fisheries Consolidation Act 1959 (as amended).
The Fisheries (Amendment) Act 1997.
The Inland Fisheries Act 2010.
Council Directive 78/659/EEC on the Quality of Freshwaters Needing Protection or
Improvement in Order to Support Fish Life.
The European Communities (Quality of Salmonid Waters) Regulations 1988 (S.I. 293 of
1988).
European Communities (Quality of Shellfish Waters) Regulations 2006 (S.I. 268 of 2006).
European Communities (Quality of Shellfish Waters) (Amendment) Regulations 2009 (S.I.
No. 55 of 2009).
The Wildlife Act 1976.
The Wildlife (Amendment) Act 2000.
The Local Government (Water Pollution) Act 1977.
The Local Government (Water Pollution) Amendment) Act 1990.
The Habitats Directive (92/43/EEC).
The European Communities (Birds and Natural Habitats) Regulations 2011 (S.I. 477 of
2011).
The Water Framework Directive (2000/60/EC).
The European Communities (Water Policy Regulations 2003 (S.I. 722 of 2003).
The European Communities Environmental Objectives (Surface Waters) Regulations 2009
(S.I. 272 of 2009).
The European Communities Environmental Objectives (Freshwater Pearl Mussel) Regulations
2009 (S.I. 296 of 2009).
26
GLOSSARY
Alevin
Newly hatched salmon, trout or related fish usually with a yolk sac attached which
acts as a primary nutrient source, before it emerges from the spawning gravel to
begin swimming freely.
Armouring
Apron
Lining of watercourse banks with rock or other material to protect from scour.
Erosion protection placed below watercourse bed level in an area of high velocity
such as downstream of a bridge or culvert.
Cyprinid Belonging to the largest European freshwater fish family. Common examples in
Irish waters include roach, rudd, dace, minnow, gudgeon bream and carp.
Ecosystem
Any combination of living and non living components that with a supply of
matter and energy is self sustaining over a defined period of time
Electrofishing
Fishing with electrical devices based on electro-taxis and electro-narcosis
(state of immobility resulting from muscular slackening of fish due to electric current).
Gabions
Baskets normally made of woven wire and filled with stone/rock or other hard
material generally used to form erosion resistant structures.
Habitat
The natural abode of a plant or animal, especially the particular location where it
normally grows or lives.
Invasive species
Species that have been introduced, generally by human intervention,
outside their natural range and whose establishment and spread can threaten native
ecosystems
Perched
Set at an elevated level, or in a higher position, and in the context of culverts –
and scour slabs, the tendency to develop a water fall or cascade due to erosion of a
watercourse downstream of a structure.
Riparian
The terrestrial aquatic interphase or area immediately alongside the bank of a
watercourse.
Salmonids
The only two indigenous fishes in the genus Salmo in Ireland - Atlantic salmon
(Salmo salar L.) and brown trout (Salmo trutta L.).
Terram A geotextile cloth type permeable material normally made from polypropylene or
polyester used in construction as a separation layer.
Toe
The point at which the bottom of a bank and the bed of the alongside watercourse
intersect.
27
REFERENCES
Anon. 1998. Fisheries Guidelines for Local Authority Works. Department of the Marine and
Natural Resources, Dublin.
Anon. 2007. Maintenance and Protection of the Inland Fisheries Resource During Road
Construction and Improvement Works. Requirements of the Southern Regional Fisheries
Board. Southern Regional Fisheries Board, Clonmel.
Anon. 2009.
Protection and Conservation of Fisheries Habitat with Particular Reference to
Road Construction. Shannon Regional Fisheries Board, Limerick.
Anon.
Construction, Replacement or Alteration of Bridges and Culverts.
A Guide to
Applying for Consent Under Section 50 of the Arterial Drainage Act, 1945. Office of Public
Works, Dublin.
Baker, C. O. and Votapka, F. E., 1990.
Fish Passage Through Culverts.
U. S.
Department of Transportation, Washington, DC 20590.
FAO, 2008.
Rehabilitation of Inland Fisheries Waters for Fisheries.
FAO Technical
Guidelines for Responsible Fisheries. No. 6. FAO, Rome.
O’Grady, M. F., 2006.
Channels & Challenges.
Enhancing Salmonid Rivers.
Irish
Freshwater Fishes Ecology & Management Series: Number 4, Inland Fisheries Ireland, Dublin.
Murphy, D. F. 2004.
Requirements for the Protection of Fisheries Habitat During
Construction and Development Works at River Sites.
Eastern Regional Fisheries Board,
Dublin.
National Roads Authority, 2004.
Guidelines for the Assessment of Ecological Impacts of
National Road Schemes. National Roads Authority, Dublin.
National Roads Authority, 2008.
Guidelines for the Crossing of Watercourses During the
Construction of National Road Schemes. National Roads Authority, Dublin.
28