Attachment 2 - Plans - Amendment 0001 C-502A.pdf
PDF 644 KB Posted
- Attached to
- Melvin Price Flood Control Project - Reach 1
- Solicitation number
- W912P920R0053
About this file
This solicitation package includes plans and specifications for a relief well construction project. The U.S. Army Corps of Engineers is seeking proposals to construct relief wells for the Wood River Drainage and Levee District as part of flood control efforts on the Melvin Price Flood Control Project - Reach 1. Proposals are due by September 20, 2020. The contract value is estimated between $5 million and $10 million and will have a performance period of 420 days. The contractor will be responsible for furnishing all labor, equipment, materials and services to construct the relief wells in accordance with the specifications while coordinating with other ongoing Federal projects onsite and ensuring there are no disruptions to site operations. The solicitation will use best value determination with a subjective tradeoff method and Davis Bacon wage rates apply.
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SCALE: NTS
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FILTER PACKFILTER PACKFILTER PACK
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MININUM THICKNESS OF
STEEL RISER PIPE
10" I.D. STAINLESS
CHECK VALVE
SCREEN
EXTENDS 5' ABOVE
FILTER PACK
WELL PLUG
ELEVATION VARIES
BOTTOM OF HOLE
EQUALLY SPACED
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TYPICAL RELIEF WELL CONVERSION DETAIL
SCREEN, TO BE REMOVED
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OUTLET PIPE INVERT
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TYPICAL RELIEF WELL CONVERSION DETAIL
SCREEN, TO BE REMOVED
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BELOW NEW DISCHARGE ELEV,
REMOVE CONCRETE CAP, 9"
OUTLET PIPE INVERT
ELEVATION AND
NEW DISCHARGE
AND CONCRETE CAP
REMOVE SURFACE SLAB
D3
EXISTING GRADE
A3 SCALE: NTS
TYPICAL RELIEF WELL CONVERSION DETAIL
MAINTENANCE ACCESS ROAD
SURFACE OF CONSTRUCTION AND
SCREEN, TO BE REMOVED
D-TYPE WELL PROTECTIVE
AND ROUGHEN SURFACE
BELOW NEW DISCHARGE ELEV,
REMOVE CONCRETE CAP, 9"
OUTLET PIPE INVERT
ELEVATION AND
NEW DISCHARGE
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REMOVE SURFACE SLAB
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MININUM THICKNESS OF
STEEL RISER PIPE
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FILTER PACK
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MININUM THICKNESS OF
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CHECK VALVE
HEIGHT VARIES
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SCREEN
EXTENDS 5' ABOVE
FILTER PACK
WELL PLUG
ELEVATION VARIES
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CONSTRUCTION
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DISCHARGE ELEVATION
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GENERAL SHEET NOTES
TYPE "T" RELIEF WELL DETAIL
C-502A
MAINTAIN DISCHARGE ELEV 409
ENDS (NOT SHOWN)
COUPLING WITH FEMALE THREADED
RISER PIPE TO TERMINATE WITH
PRECAST CONCRETE
6"
CAST IN-PLACE CONCRETE
CAST IN-PLACE CONCRETE
REQUIRMENTS
BEDDING
SEE A1 FOR BASE SLAB AND
6" BEDDING
REQUIRED TO BE CENTERED IN MANHOLE.
MANHOLE FOR WELL MAINTENANCE. WELL IS NOT
TO ALLOW A RISER PIPE TO EXTEND OUT OF THE
DIAMETER OF THE WELL PROJECTED VERTICALLY
6. OPENING IN DETAL A1 SHALL EMCOMPASS THE INNER
5. FOR MANHOLE SURVEY MARKER LABELING, SEE SPECS
4. METAL FRAME AND LID SHALL BE GRAY IRON (ASTM A-48)
LOADING
MANUFACTURER TO WITHSTAND AN AASHTO H20
3. MANHOLE FRAME AND LID SHALL BE DESIGNED BY THE
LOADING
BY THE MANUFACTURER TO WITHSTAND AN AASHTO H20
2. PRECAST CONCRETE PRODUCTS SHALL BE DESIGNED
RELIEF WELL PERMIT
SEAL THICKNESS LESS THAN 20 FEET FOR THE FINAL
COUNTY DEPARTMENT OF HEALTH FOR RELIEF WELL
1. A VARIANCE SHALL BE REQUESTED FROM MADISON
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