Bid Package 4 Plans 9 14068.pdf
PDF 4 MB Posted
- Solicitation number
- RFQ 171 230000000061 7
- Issued by
- Houghton County, Lansing City, Michigan
About this file
This is a bid package containing construction plans and details for the Lake Linden Trail Restoration project, prepared by the State of Michigan Department of Technology, Management and Budget, Facilities and Business Services Administration, Design and Construction Division, located in Hancock, Michigan. The plans document the technical specifications and construction details for trail restoration work, including the design and installation of precast concrete box culverts, naturalization areas, earth diversions, check dams, slope benching, silt fencing, sediment traps, rock-lined channels, vegetation buffer zones, and plunge pools. The construction plans specify detailed dimensions, elevation data, material specifications, and installation requirements for infrastructure improvements. The plans are dated November 7, 2022, and include multiple detailed sheets addressing transitions, grading, culvert installations, and various erosion control and site restoration measures.
The construction specifications detail specific materials and installation requirements including precast concrete box culverts (8.5 feet by 8.5 feet), leveling stone at 3 inches thick, crushed rock bedding compacted to 95 percent minimum density, filter fabric (US 300NW or equivalent), 4-inch steel maintainable drains, cast-in-place concrete floors with reinforcement (6-inch by 6-inch W2.1xW2.1 welded wire fabric), and riprap slope protection with geotextile liner. The plans assume a bearing capacity of 2000 pounds per square foot and place responsibility on the contractor to verify site conditions prior to installation and notify the engineer of any subsurface conditions or existing foundations not shown on the plans. The engineer disclaims responsibility for settlement, foundation failures, precast failures, scour failures, or poor installation practices by the contractor.
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PH. 906.482.0535
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PROPOSED CULVERT4
TYPICAL CULVERT PROFILE2 TYPICAL CULVERT SECTION1
EXISTING/REMOVALS PLAN VIEW3
SFSF
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NATURALIZATION TYPICALS2
EXISTING / REMOVALS PLAN VIEW3
TYPICAL NATURALIZATION PROFILE4
TYPICAL NATURALIZATION SECTION1
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EARTH DIVERSION BERM1CHECK DAMS2
NOTE: CHECK DAMS GREATER THAN TWO FEET IN DEPTH MAY
SERIOUSLY IMPACT THE FLOW CHARACTERISTICS OF THE DITCH
RIPRAP SLOPE3
SLOPE BENCHING8
SILT FENCE5
SEDIMENT TRAP7
ROCK LINED CHANNEL6 VEGETATION BUFFER ZONE4
NOTE: USE MDOT PLAIN RIPRAP AT 10% OR LESS SLOPES OR
<5.5FPS STREAM VELOCITY. USE MDOT HEAVY RIPRAP AT SLOPES
>10% OR >5.5FPS STREAM VELOCITY.
PLUNGE POOL10 C
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2'
V A
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CHECK DAM (PERMANENT)8
CLEAR AND TRIM 14' WIDE AND 20' CLEARANCE
EXISTING GRADE
PROPOSED TRAIL SECTION9
EL 731.75 CULV INV UPSTREAM
EL 722.75 CULV INV DOWNSTREAM
EL 729.75 B/CULV BEDDING UPSTREAM
EL 720.75 B/CULV BEDDING DOWNSTREAM
LEVELING STONE (3" THICK) 34R OR 3/8" LIMESTONE CHIPS. PAID AS CULV BEDDING, BOX CULV.
6A CRUSHED ROCK BEDDING. COMPACTED/TAMPED FREQUENTLY DURING
PLACEMENT. INCLUDED IN PAY CULV BEDDING, BOX CULV.
US 300NW (OR EQUIVALENT) FILTER FABRIC, WRAPPED/LAPPED. INCLUDED IN
PAY CULV BEDDING, BOX CULV.
2'-0"
TYP
"MAINTAINABLE DRAIN, STEEL, 4 INCH", (TYP)
LIFTING HOLES (TYP) GROUTED AFTER INSTALLATION
PRECAST HEADWALL (TYP). PAID FOR AS CULV,
PRECAST CONC BOX, 8.5 FOOT BY 8.5 FOOT
CONC BOX CULVERT, PAID FOR AS CULV,
PRECAST CONC BOX, 8.5 FOOT BY 8.5 FOOT
CONC WING WALLS @ 45°
10'-6"
8'-6"
BACKFILL STRUCTURE, CIP
APPROXIMATE EXCAVATION LIMITS
PROPOSED GRADE AT ℄
75'-0" 75'-0"
CULV BEDDING, BOX CULV
EL 722.75 CULV INV DOWNSTREAM
EL 731.75 CULV INV UPSTREAM
℄ CONST
7'-2"
SALVAGED RIPRAP
EL 733.25 T/HEADWALL
EL 740.25 SE QUAD
EL 742.25 T/HEADWALL
EL 740.25 SW QUAD
EL 731.25 NE QUAD
EL 731.25 NW QUAD
BACKFILL STRUCTURE, CIP
7'-2"
SEE SHEET 63 FOR PLUNGE POOL DETAIL
50'-0"
PROPOSED GRADE
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7136-20-0040
ELEVATION
SECTION - ALONG CULVERT ℄
1" = 5'
1. ASSUMED BEARING CAPACITY = 2000 POUNDS PER SQUARE FOOT (CONTRACTOR TO NOTIFY ENGINEER IF
UNSATISFACTORY SOILS ARE FOUND DURING EXCAVATION).
2. ANY SUBSURFACE CONDITIONS OR EXISTING FOUNDATIONS ENCOUNTERED THAT ARE NOT REPRESENTED ON THE
PLANS OR IN THE SPECIFICATIONS SHALL BE BROUGHT TO THE IMMEDIATE ATTENTION OF THE ENGINEER FOR THE
INSPECTION AND/OR AN ALTERNATE FOUNDATION/FOOTING DESIGN.
3. THE ENGINEER IS NOT RESPONSIBLE FOR ANY SETTLEMENT OF STRUCTURE, FOUNDATION FAILURES, PRECAST
FAILURES, SCOUR FAILURES OR POOR INSTALLATION PRACTICES BY THE CONTRACTOR. ENGINEER SHALL NOT BE
RESPONSIBLE FOR ANY DAMAGES OR CLAIMS RELATED TO THIS PRECAST CONCRETE BOX DESIGN AND WINGWALL.
SITE CONDITIONS SHALL BE VERIFIED BY CONTRACTOR PRIOR TO STRUCTURE INSTALLATION. CONTRACTOR SHALL BE
SOLELY RESPONSIBLE FOR COMPLETING THE INSTALLATION ACCORDING TO THE ORIGINAL DESIGN/CONSTRUCTION
DRAWINGS.
4. GEOTEXTILE LINER SHALL BE PLACED ON ALL SLOPES PRIOR TO PLACING RIPRAP. PAYMENT FOR GEOTEXTILE LINER
SHALL BE INCLUDED IN PAYMENT FOR RIPRAP.
1" = 5'
4'-6"
CIP CONCRETE FLOOR, SEE DETAIL 3
HAND CHIPPING
4'-6"
CIP CONCRETE FLOOR, SEE DETAIL 3
HAND CHIPPING
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7136-20-0040
INLET DETAIL2
OUTLET DETAIL1EXISTING CULVERT OUTLET1
EXISTING CULVERT INLET2
CIP CONCRETE FLOOR DETAIL3
6" X 6" W2.1XW2.1 WWF
CIP CULVERT FLOOR
6" 6A CRUSHED ROCK, LEVEL AND COMPACT 95% MIN
8" X
" DOWELS @ 48" O.C. (TYP)
3'-8"
CIP CONCRETE FLOOR, SEE DETAIL 3
HAND CHIPPING
3'-8"
4'-7"
CIP CONCRETE FLOOR, SEE DETAIL 3
HAND CHIPPING
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7136-20-0040
INLET DETAIL2
OUTLET DETAIL1EXISTING CULVERT OUTLET1
EXISTING CULVERT INLET2 CIP CONCRETE FLOOR DETAIL3
6" X 6" W2.1XW2.1 WWF
CIP CULVERT FLOOR
6" 6A CRUSHED ROCK, LEVEL AND COMPACT 95% MIN
8" X
" DOWELS @ 48" O.C. (TYP)
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