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
