A22.W912EK24B0008 - CLINTON PL84-99 - FINAL PLAN SET_AMND 0001_REVISED C-301_11MAR2024.pdf
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- Attached to
- INVITATION FOR BID - Mississippi River Basin, Clinton County, IA, 2023 Event PL84-99 Flood Repairs
- Solicitation number
- W912EK24B0008
About this file
This document contains an invitation for bid for flood repair services along with the related technical specifications and drawings. The U.S. Army Corps of Engineers is seeking bids to repair flood damage in Clinton County, Iowa from the 2023 flooding event as authorized by Public Law 84-99. Bids are due by the date specified in ProjNet and work must be completed within 180 calendar days of the notice to proceed. The total estimated cost range for the project is between $500,000 to $1,000,000. This is a 100% small business set-aside contract for flood repair work including placement of riprap, bedding stone, and removal of existing concrete mats as detailed in the revised drawing C-301.
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C-301
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A1
SCALE: 1" = 8'
TYPICAL SECTION - REPAIR AREA - STA 2+75 TO STA 4+08
16'0 8'
RIVERSIDE
574.3
EL VARIES
1.5
EL 570.0
GRANULAR MATERIAL
EXISTING RIPRAP AND
APPROX TOP EL 597.2
EXISTING LEVEE
SEE NOTE 3
TIE INTO EXISTING RIPRAP
H1
SCALE: 1" = 8'
TYPICAL SECTION - REPAIR AREA - STA 0+00 TO STA 2+75
16'0 8'
574.3
1.5
EL 570.0
EL VARIES
APPROX TOP EL 597.2
EXISTING LEVEE
RIVERSIDE
GRANULAR MATERIAL
EXISTING RIPRAP AND
SEE NOTE 3
TIE INTO EXISTING RIPRAP
TOLERANCES.
REFER TO SPECIFICATIONS FOR MATERIAL REQUIREMENTS AND 5.
CONCRETE MAT WOULD REPLACE EQUIVALENT VOLUME OF BEDDING STONE.
EXPOSED CABLES TO 1' BELOW WATER SURFACE. IF USED, CRUSHED
CRUSHED ONSITE, REASONABLY REMOVE LOOSE FILTER FABRIC AND CUT
3:1 AND INCORPORATE INTO BEDDING STONE LAYER. IF CONCRETE MAT IS
MAT INTO PIECES WITH A LENGTH TO THICKNESS RATIO NO GREATER THAN
AND FILTER FABRIC AND PROPERLY DISPOSE OFFSITE OR CRUSH CONCRETE
AT CONTACTOR'S OPTION, REMOVE CONCRETE MAT TO INCLUDE CABLES 4.
RIPRAP BED INTERLOCK.
EXISTING RIPRAP TO ENSURE CONSISTENT RIPRAP SURFACE GRADE AND
CONTRACTOR TO SELECTIVELY PLACE RIPRAP PIECES AT AREAS ADJOINING 3.
AT LOCK AND DAM 14 GAGE.
DURATION ELEVATION. REFER TO RIVERGAGES.COM FOR DAILY STAGE DATA
MEDIAN ANNUAL WATER LEVEL, WHICH IS THE 50% ANNUAL EXCEEDANCE
WATER ELEVATION SHOWN FOR THE MISSISSIPPI RIVER CORRESPONDS TO 2.
ON RIVER LEVEL FLUCTUATIONS.
RIPRAP PLACEMENT WILL BE REQUIRED IN WET AND DRY CONDITIONS BASED 1.
GENERAL SHEET NOTES
SEE NOTE 4
REMOVE OR CRUSH EXISTING CONCRETE MAT
SEE NOTE 4
REMOVE OR CRUSH EXISTING CONCRETE MAT
STONE OR CRUSHED STONE
PLACE 18" MIN IL RR-5 RIPRAP OVER 6" CA-5 BEDDING
STONE OR CRUSHED STONE
PLACE 18" MIN IL RR-5 RIPRAP OVER 6" CA-5 BEDDING
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REVISED 11 MARCH 2024
NOTE: THIS REVISED DRAWING C-301
REPLACES THE VERSION FROM THE ORIGINAL
PLAN SET IN ITS ENTIRETY.
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