id-ef1901101_Pre-Ad_Plans.pdf
PDF 7 MB Posted
- Solicitation number
- 69056723B000004
About this file
This document includes preliminary plans for a highway repair project on Idaho State Route 117 between mileposts 4.0 and 4.52. The project will involve repairing slope failures and installing mechanically stabilized earth walls and gabion rock facings. Reinforced soil slopes up to 16.5 feet tall will be constructed using welded wire forms or gabion baskets wrapped in geogrid. Minimum reinforcement lengths for the slopes range between 14 to 16 feet depending on the slope height. Other details specify foundation preparation, backfill material, drainage features and wall connections. The related federal contract opportunity is a pre-solicitation notice for solicitation number 69056723B000004 to repair sections of Idaho State Route 117 between mileposts 4.0 and 4.52 as outlined in the preliminary plans. The project is being conducted by the Idaho Department of Transportation under the Federal Highway Administration.
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Other files
| File | Type | Posted |
|---|---|---|
| Prelim Letter_Nez-Perce Clearwater 2019 Repairs.pdf | ||
| PROJECT DESCRIPTION ID NEZPR 117 2019-1(1).pdf |
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PRELIMINARY - N
OT FOR CONSTRUCTIION
ERFO FS NEZPR117
2019-1(1)
ID D.6
FSR 5503 MP 4.0
(SWAN CREEK ROAD)
87°
Sheet 3 of 3
WELDED WIRE FORM
adjoining wire form for support, 4"
Place edge of wire inside of
8'-0" to 10'-0" ±
18"
4 x 4 W5 x W5
Inset end struts 6"
24" C to C or as needed.
Support struts spaced maximum
GABION ROCK FACING DETAIL
Select granular backfill
Select granular backfill grid, 3 per panel (typ.)
on facing and
Tie transverse bars
Welded wire form facing type A, non-woven geotextile class 2, Separation
(PLAN VIEWS)
Adjacent geogrids
TANGENT WALL FACE
backside without overlap
Butt adjacent geogrids at
Wall face
CURVE LEFT WALL FACE
Adjacent geogrids
Backside overlap acceptable
Wall face
Reinforcement length L
CURVE RIGHT WALL FACE
Adjacent geogrids
Backside separation acceptable
Reinforcement length L
Wall face wall face without overlap
Butt adjacent geogrids at wall face without overlap
Butt adjacent geogrids at
Reinforcement length (L) wall face without overlap
Butt adjacent geogrids at
Machine direction)
(roll
Machine direction)
(roll
NO SCALE
GEOGRID BUTT DETAIL
6" at mid height of panel at face 12" thickness
Gabion rock
2'-0"
4'-0" Return geogrid type III
Reinforcement is omitted for clarity.
between geogrid reinforcement
Note: Select granular backfill
STATE PROJECT
NUMBER
SHEET
ID
2019-1(1)
ERFO FS NEZPR117
G.4
:3
P M
A u g u s t
S h e e t
G .5 c p w w o r k \d
\i d e f q e .d g n
EARTH (MSE) WALL DETAILS
MECHANICALLY STABILIZEDPRELIMINARY - N
ct
I See Typical Section
18" (typ.)
9" (typ.)
Select Welded wire form (typ.)
granular backfill
Reinforcement geogrid, type III
Limit of structure excavation
6" 0 Perforated collector pipe. Outlet at downstream end of reinforced fill. See Detail A
Foundation fill
[2} Reinforcement length, L varies
REINFORCED SOIL SLOPE WITH
GABION ROCK FACE
5'-0" Finished grade
Hardware cloth or permanent facing geogrid
TYPICAL WALL END TREATMENT
ELEVATION
Reinforcement geogrid type III
2'-0"
Separation geotextile class 2, type A, non-woven
4'-0" Return
Tie transverse bars on facing and grid, 3 per panel (typ.)
TYPICAL CONNECTION DETAIL
Welded wire form facing
6" Collector pipe
18"
::r:
REINFORCED SOIL SLOPE WITH
WELDED WIRE FORM FACE DIMENSIONS
APPROX. ESTIMATED
SITE
LENGTH MAXIMUM
OF RSS HEIGHT "H"
(FT) (FT)
FSR 470 MP 2.36 120 15
FSR 470 MP 2.52 120 16.5
NOTE: Grid length, "L" is bottom horizontal length only.
Add additional ~ 5. 5 feet length for wrapping at face
MINIMUM
REINFORCEMENT
LENGTH, "L"
(FT)
(1.5 feet vertical+ 4 feet return wrap). 4'-0" Return
2'-0"
Select granular backfill
STATE
ID
PROJECT
ERFO FS NEZPR117
2019-1 1
Welded wire form facing
1-<.-----..- Gabion rock at face 12" thickness at mid height of panel
GABION ROCK FACING DETAIL
SHEET
NUMBER
G.6
Subgrade shoulder Retaining wall Foundation fill t
Geotextile filter, class 2, type C, (non-woven)
6" fl} Collector pipe underdrain system beneath wall
Granular backfill 6" fl} Rigid fll
Proposed ground at face of wall
6" Collector pipe
TYPICAL ELEVATION
Place edge of wire form inside of adjoining wire form for support
Galvanized support struts spaced 24" C to C or as needed
4" x 4" - W4 x W4 galvanized
WELDED WIRE FORM DETAIL
IO
outlet pipe drain.
See Drainage Tabulation for location
(2) 45 ° Elbows
PERFORATED PIPE
UNDERDRAIN SYSTEM
DETAIL A
NOTE:
1. The heights and quantities are subject to field adjustment. Any increase in wall heights over those shown on the plans require investigation to determine that the safe bearing pressure is not exceeded.
2. Welded wire form faced wall toe treatment to be common backfill and 9-inches topsoil unless indicated otherwise.
FOOTNOTE:
r11 Locate outlet a mimimum of 30-feet from toe of reinforced soil slope.
r21 See RSS Elevation Sheets for Reinforcement lengths, L.
TO BE CONTRACTOR-DESIGNED
REINFORCED SOIL SLOPE
WITH WELDED WIRE
FORM FACE DETAILS NO SCALE
10.4 x 16 25101 -0200
60201 -0800
60201 -1000
60201 -1000
60704 -0000
60706 -0000
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REMARKS
See below for numbered notes
FEET CUYD CUYD LNFT LNFT LNFT EACH EACH Lt Rt
FSR469-MP2.8
200+17 1 1 21 GS --- ---
FSR5503-MP1.28
(no stationing) 12 80 6
FSR 5503-MP 4.0
82+54 2 26 4 35 39 RC 1 1.5 Limited cover; RC pipe requ
PROJECT TOTAL 26 16 80 35 6 1 1
Allowable Pipe Material
NOTE: A Aluminum
1. Steel pipe culvert minimum wall thickness is the thickness 4. Plastic pipe is not allowed when final installation is exposed. Furnish metal end sections for AS Aluminized steel required by the Std. 602-1 fill height table. all plastic pipe including those specified with bevels. See Std. 602-5 for acceptable cell class. C Concrete
2. Aluminized steel pipe culvert minimum wall thickness is the 5. See Std. 602-7 for acceptable concrete cell class. GS Galvanized steel thickness required by the Std. 602-1 fill height table (steel). 6. Structural excavation quantity based on material excavated inside the vertical planes located P Plastic
3. Aluminum pipe culvert minimum wall thickness is the 18 inches outside and parallel to the limits of footings or foundations. (blank) Any appropriate material thickness required by the Std. 602-1 fill height table. x/__ Any appropriate material except __
PAY ITEM NUMBER
TABULATION OF DRAINAGE QUANTITIES
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D es ig ne d by
Ch ec ke d by
STATE PROJECT
H.1
SHEET
NUMBER
ERFO FS NEZPR117
2019-1(1)ID
Note: The quantities shown hereon are approximate and are subject to field adjustments.
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