Marsha Sharp Freeway Soil and Groundwater Management Plan

Marsha Sharp Freeway
Soil and Groundwater Management Plan
End Freeway 0.80 miles east
of Interstate Highway 27
KENT
Phase 1
Phase 2
ERSKINE ST.
Phase 3A
4th ST.
Phase 3B
19th ST.
Phase 4
34th ST.
50th ST.
66th ST.
Begin Freeway 1.25 miles
southwest of Loop 289
PEACH AVE.
GUAVA AVE.
MLK BLVD.
AVE. P
UNIVERSITY AVE.
INDIANA AVE.
QUAKER AVE.
SLIDE RD.
UPLAND AVE.
130th ST.
ALCOVE AVE.
114th ST.
INLER AVE.
98th ST.
FRANKFORD AVE.
CITY OF
WOLFFORTH
MILWAUKEE AVE.
82nd ST.
Avenue W
enue
University Av
Soil and Groundwater Management Plan Zone:
from University Avenue to Avenue W
Storm Sewer Construction
Stage I: from the North Fork of the Double Mountain Fork of the Brazos River to University
Avenue
let for construction August 1995 – “Line F”
Stage II: from University Avenue to Quaker Avenue
let for construction December
2004
LPST #109824
North Fork of the Double Mountain
Fork of the Brazos River
1997 Phase I – storm sewer construction stopped 800 feet short of
University Avenue at Avenue W by petroleum contaminated soil
and groundwater
1997 contractor stopped
just west of Avenue W and
plugged the entrance to
the storm sewer
the last box installed
in 1997
1996 contractor
name
Following the 1997 decision to shut-down the storm sewer project
800 feet short of its planned termination, the storm sewer box
(including the manhole) was plugged, the utility trench was filled
with soil, the soil was compacted, and the roadway re-constructed.
Universit
y Avenue
LPST facility #109824 located at the northeast
corner of University Avenue and U.S. Highway 82
(4th Street) and a second site to the southeast
storm sewer system – Line F
#109824
U.S. Highway 82
Soils and Groundwater in
the University Avenue Area
University Avenue
Data from monitoring wells show the groundwater
table at depths of ~35 feet to 40 feet below ground
surface. The groundwater gradient varies slightly,
but generally flows eastward with a yield estimated
at 150 to 500 gallons per foot per day. Available
lithologic data suggests that silty sands
predominate within the storm water sewer trench
zone. Interbedding of clays and sands may create
lithologic traps resulting in varying transmissivities
and water yields during construction.
existing surface
proposed freeway surface
LPST Site
groundwater
table
proposed utility trench
existing storm sewer
Soil and
Groundwater
Management Plan
from University Avenue to
Avenue W
prepared by
LCA Environmental, Inc.
25’
15’
mainlane
excavation
storm water sewer
trench
Problem Definition and Excavation Definition
The freeway is depressed 25 feet below the surrounding topographical grade
and the bottom of the storm water sewer system is 15 feet below the freeway
• freeway excavation to a maximum of 25 feet below ground surface;
• storm water sewer trench from 25 to 40 feet below ground surface.
existing topographical grade
frontage
road
frontage road
25’
mainlane
excavation
15’
storm water
sewer trench
Three distinct problems:
Two distinct excavations:
• petroleum products contaminated soil in the
mainlane excavation
• freeway excavation
• petroleum products contamination soil in the
storm water sewer trench
• petroleum contaminated groundwater
35 feet
groundwater
• storm water sewer trench excavation
existing topographical grade
frontage road
frontage road
25’
15’
concrete stabilized backfill
and cutoff collar
Typical Section East of University Avenue
Freeway and Stormwater Sewer Trench Excavations
freeway
excavation
storm water
sewer trench
storm sewer
pipe
Sherman Avenue
soil and groundwater management zone
Avenue H
Avenue Q
Soil Relocation Zone
from just west of Sherman Avenue to just
east of Avenue H / Buddy Holly Avenue
elevated freeway segment at Avenue Q
move freeway (mainlane) excavation contaminated
soil from here ………………..to here
fan pulling air into manhole upstream from
the entrance to the storm sewer pipe
measuring air flow velocity
in the storm water sewers
system pipe
Field Screening
Photo-Ionization Detector (PID)
Photo-Ionization Detector (PID)
cement stabilized
backfill (CSB)
windrowed petroleum contaminated
soil to be used as cover backfill in
the utility trench
windrowed petroleum contaminated
soil being used (and compacted) as
cover backfill in the storm water
sewer system trench
25’
15’
mainlane
excavation
storm water sewer
trench
density check of petroleum
products contamination soil
returned to the storm water
sewer system trench
cover with two feet of
clean soil
backfill with petroleum
contamination soil taken
from the trench excavation
cement stabilized
backfill (CSB)
interim stockpile area
Town & Country Shopping Center
soil and groundwater management zone
proposed storm sewer line
4th Street / U.S. Highway 82
Soil and Groundwater
Management Plan Site Location
Texas Tech University
Jones Stadium
existing storm sewer line
petroleum contamination
groundwater that has seeped
back into the storm water trench
indicator – cutoff
collar joint
25’
15’
mainlane
excavation
storm water sewer
trench
Groundwater Coordination
Frac tank holding petroleum
contaminated groundwater
frontage
road
Frac tank holding petroleum
contaminated groundwater
2
5’
1
5
’
petroleum contaminated groundwater being
used per TXG83 to aid in soil compaction at
the Avenue Q headerbank
mainlane
excavation
storm
water
sewer
trench
petroleum contaminated groundwater being
used per TXG83 to aid in soil compaction at
the Avenue Q headerbank
Planning Preventative Action and
Managing Construction
Standard Specifications for
Construction and Maintenance of
Highways, Streets, and Bridges
Force Account Payment for directed
work based on the actual cost of
labor, equipment, and materials
furnished with markups for project
overhead and profit.
Cutoff Collar Details and Item 462 – Concrete Box
Culverts and Sewers
Cutoff Collar Details
Cutoff Collar Details: Line F place CSB (cement stabilized
backfill) in the excavation trench and every 50 feet a
trench deep enough to install a CSB collar two feet below
the sewer box and one foot wide
cutoff collar: CSB two feet below box at collar
locations
Item 462 Concrete Box Culverts and Sewers
CSB: two feet on either side of box throughout
length of the utility excavation
Item 462 Concrete Box Culverts and Sewers: in the area of
petroleum contamination:
• frequency of collars every 50 feet;
• “Ram-neck” used between joints shall be comprised of
material that is resistant to dissolving in gasoline, such as
“RAM-NEK-FR” or an equivalent;
• the inside of the shall be further sealed with Class 4 joint
sealer as defined in Item 433
Item 462 Concrete Box Culverts and Sewers:
in the area of petroleum contamination:
• frequency of collars every 50 feet;
• “Ram-neck” used between joints shall be
comprised of material that is resistant to
dissolving in gasoline, such as “RAM-NEKFR” or an equivalent;
• the inside of the shall be further sealed with
Class 4 joint sealer as defined in Item 433
Ram-Nek loaded on pipe section for
installation at pipe joint
Ram-Nek joint sealant in box
Item 462 Concrete Box Culverts and Sewers: in the area of petroleum contamination:
• frequency of collars every 50 feet;
• “Ram-neck” used between joints shall be comprised of material that is resistant to dissolving in
gasoline, such as “RAM-NEK-FR” or an equivalent;
• the inside of the shall be further sealed with Class 4 joint sealer as defined in Item 433
cutoff collar location: Line F every
50 feet a trench deep enough to
install a CSB collar two feet below
the sewer box and one foot wide
“Ram-neck”
used between
joints shall be
comprised of
material that is
resistant to
dissolving in
gasoline, such
as “RAM-NEKFR” or an
equivalent
“bone-dry” inside storm water sewer system pipe – no
leakage of petroleum contaminated water into the pipe
Implementation
trench protection being moved forward
pipe segment being lowered into
trench protector
storm water sewer system trench and pipe
concrete mixer truck pouring into lift bucket
view from the top to the east
stockpiled pipe segments
bucket being loaded with cement stabilized
backfill
cement stabilized backfill being pored into
storm water sewer system trench
bucket being lowered to storm water sewer
system trench
density test
compacting soil moved in to cover the trench
moving dirt, compacting,
and testing
moving dirt
Lubbock District - Leadership
Texas Department of Transportation
Randy C. Hopmann, P.E.
Gerald R. Sturdivant, P.E.
Steven P. Warren, P.E.
John E. Rantz, P.E.
Robert G. Comey, P.E..
Wm. Frank Phillips, P.E.
Keith W Craig, P.E.
Bryan A. Wilson, P.E.
Jerry W. Cash, P.E.
William M.. Barnett, P.E.
Dianna F. Noble, P.E.
James P. Barta, P.E.
Douglass J. Mack
Environmental Affairs Division
Texas Department of Transportation
2
Construction & Inspection - Lubbock District
Texas Department of Transportation
Mark C. Perry
Mark Alldredge
Eddie Hickson
Tim Hogue
Tony Johnson
Kevin McCuistion
J. David Morren, P.E.
David Perkins
Richard D. Pinkerton
Frank Romanofski
Jonathan E. Ziegner, P.E.
Karen S. Bradshaw
Caroline C. Hinkelman
Davis Melton
Environmental Studies – Lubbock District
Texas Department of Transportation