Amendment 0001 - FMM SE1B Vol 1 CS502.pdf
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- Attached to
- Fargo Moorhead Metropolitan Area Flood Risk Management Project, Southern Embankment Reach SE-1B
- Solicitation number
- W912ES23B0012
About this file
This document includes an invitation for bid for construction services for the Fargo Moorhead Metropolitan Area Flood Risk Management Project, Southern Embankment Reach SE-1B. The U.S. Army Corps of Engineers, St. Paul District is seeking bids for construction of an earth dam embankment with gravel road and topsoiled and seeded side slopes located in Cass County, North Dakota. The project consists of approximately one-half mile of dam embankment tying into existing embankments and extending structures, relocation of two county roads including a roundabout, installation of street lighting and culverts, and removal of two abandoned water lines. The total anticipated cost of the project is between $10 million and $25 million. Bids must be submitted through the System for Award Management website by the specified due date. The solicitation is set aside for small businesses and will result in a firm fixed-price construction contract with the USACE, St. Paul District.
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Text version
12'
15'
SURFACE COURSE
8" AGGREGATE
GEOTEXTILE TYPE 2
AGGREGATE SLOUGH
6" TOP SOIL
6" TOPSOIL
1" TOPSOIL, SEED AND HYDRO-MULCH
TRM OVERLAYED WITH
TRM
ANCHOR PIN (TYP)
6" TOPSOIL AND SEED
AND HYDRO-MULCH
1" TOPSOIL, SEED
TOP OF SLOPE
GEOTEXTILE TYPE 2
6" TOPSOIL AND SEED
OCCURS UNDER AGGREGATE
UNDER GEOTEXTILE WHERE OVERLAP
EXTEND TRM 3' MIN. PLACE TRM
1' MIN
1' MIN
6" TOPSOIL AND SEED
GROUND
EXISTING
6" TOPSOIL AND SEED
(TYP)
ANCHOR PIN
SOILS
FILL TRENCH WITH EXISTING
1' MIN
M
IN
1' MIN
TRM
AND HYDRO-MULCH
1" TOPSOIL, SEED
TOE OF SLOPE
3'
INSPECTION TRENCH
1.5'
2'
2'
2'
EXCAVATION LINE
3'
CENTER OF DAM EMBANKMENT
LOCATE TRENCH BELOW
DAM EMBANKMENT
EXISTING GROUND
IMPERVIOUS FILL
INSPECTION TRENCH
20" STRIPPING
1.5'
1V:2H CUT SLOPES OR FLATTER
BEDDING LAYER
GEOTEXTILE AND UNDER
HORIZONTALLY ABOVE
OVERLAY TRM 18"
AND BEDDING.
PULL BACK EXISTING RIPRAP
EXISTING RIPRAP
OVERLAP
3' GEOTEXTILE
TYPICAL EXISTING
1V:4H SLOPES
TRM TRANSITION ON
EXISTING RIPRAP AND TRM
SEED AND
6" TOPSOIL,
EDGE OF EXISTING RIPRAP IN PLAN VIEW
FINISHED GRADE
EXISTING GEOTEXTILE TYPE 1
EXISTING BEDDING
RIPRAP
R140
EXISTING
SEED AND TRM
6" TOPSOIL,
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DAM EMBANKMENT TRM DETAIL
SCALE: NTS
F1
NTS
C1
SCALE: NTS
F6
NTS
DETAIL - INSPECTION TRENCHDETAIL - TRM ANCHORING AT TOP OF SLOPE
DETAIL - TRM ANCHOR TRENCH AT TOE OF SLOPE C7
NTS
DETAIL - INSPECTION TRENCH
C8
NTS
DETAIL - TRM/RIPRAP INTERFACE
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CS502
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VOL. 1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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SHEET ID
UPSTREAMDOWNSTREAM
2% SLOPE
1V:4 H 1V:4H
DAM EMBANKMENT
CL
F1
C1
F6
TOP IMPERVIOUS FILL
8" AGGREGATE
DAM EMBANKMENT
DAM EMBANKMENT
1V:4H
DAM EMBANKMENT CONTROL LINECL
CL
TRENCH BOTTOM WIDTH.
MASS BALANCE CALCULATIONS ARE BASED ON A 3'2.
DIMENSIONS PROVIDED ARE MINIMUM DIMENSIONS. 1.
NOTES:
V
:4 H
PLAN VIEW SECTION A-A
A A
NOTES:
TO ENCOURAGE TURF ESTABLISHMENT AND REINFORCE TRANSITION
OF EXISTING BEDDING MATERIAL MAY BE MIXED WITH TOPSOIL
2. AT EXISTING RIPRAP AND TRM TRANSITION, INITIAL 18"
WHERE TRM MEETS EXISTING R140 RIPRAP
1. DETAIL APPLIES TO ANY AREA OF 1V:4H SLOPE
E L
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GENERAL NOTES:
5. SEE SPECIFICATIONS FOR ADDITIONAL INFORMATION ON TRM.
ON THE EXISTING EMBANKMENT AS SHOWN ON CS406.
A 23+60 TO A 34+50, STATION E2 0+70 TO E2 6+40, AND
EMBANKMENTS FROM STATION A 0+80 TO A 22+95,
4. TRM SHALL BE PLACED ON THE UPSTREAM SLOPE OF
ANCHORED EVERY 18" MINIMUM ALONG THE OVERLAP.
3. ROLL EDGE OVERLAPS SHALL BE 6" MINIMUM AND
RECOMMENDATION FOR ALL ANCHOR TRENCHES.
2. USE 12" TWIST PINS SPACED PER MANUFACTURERS
RECOMMENDATION.
1. USE 8" LONG TWIST PINS SPACED PER MANUFACTURER'S
GENERAL LEGEND THIS SHEET:
TRENCH FILL (IMPERVIOUS)
TURF REINFORCEMENT MAT (TRM)
®of Engineers
US Army Corps
U .S
A
R M
Y C
O R
P S
O F
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G
IN
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R S
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