Attach6_Civil_2.pdf
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- Attached to
- REPLACE FIRE STATION Federal contract opportunity
- Solicitation number
- W50S8R-20-B-0001
About this file
This solicitation package includes plans and specifications for the construction of a new fire station at Mansfield Air National Guard Base in Ohio. The project involves demolishing the existing station and building a new one to comply with aircraft firefighting and emergency response time standards. The facility must also include emergency management training space.
The construction duration is estimated at 660 calendar days. Optional items that may be included are concrete paving to the flightline in minimum or full widths, four-fold apparatus doors, and a 5-ton bridge crane. The solicitation is set aside for small businesses with a NAICS code of 236220 and $39.5 million size standard. The estimated value is between $10-20 million. The pre-bid conference is scheduled for November 5, 2019 and bids are due by November 26, 2019. The solicitation and amendments will be posted to the Federal Business Opportunities website. The Department of the Army Ohio Army National Guard is the issuing agency.
Volume 6 - CIVIL
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Text version
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684448CH
GENERAL SHEET NOTES
A. CONTRACTOR SHALL FILE A NOI WITH THE OHIO
ENVIRONMENTAL PROTECTION AGENCY (EPA) FOR
COVERAGE UNDER THE NPDES CONSTRUCTION
GENERAL PERMIT. CONTRACTOR IS RESPONSIBLE
TO DEVELOP AND SUBMIT FINAL EROSION AND
SEDIMENT CONTROL (ESC) AND/OR SWPPP PLAN
TO THE EPA AND TO THE CONTRACTING OFFICER
FOR REVIEW AND APPROVAL AS SPECIFIED PRIOR
TO IMPLEMENTING CONSTRUCTION.
B. THE CONTRACTOR RESPONSIBLE TO PROVIDE ALL
NECESSARY ESC AS FIELD CONDITIONS REQUIRE.
THE CONTRACTOR SHALL BE RESPONSIBLE FOR
MAINTAINING ALL TEMPORARY AND PERMANENT
ESC MEASURES AT ALL TIMES. MAINTENANCE OF
BOTH TEMPORARY AND PERMANENT ESC
MEASURES SHALL BE CONSIDERED INCIDENTAL.
CONTRACTOR TO MAINTAIN, MODIFY & UPDATE ESC
PLANS THROUGH CONSTRUCTION PHASES AS
WORK PROGRESSES.
C. STORM RUNOFF WATER SHALL NOT BE ALLOWED
TO LEAVE THE SITE UNTREATED (LADEN WITH
SUSPENDED SEDIMENT). IF THIS OCCURS, THE
CONTRACTOR WILL BE HELD SOLELY RESPONSIBLE
FOR ANY PERMIT VIOLATIONS AND FINES.
D. CONTRACTOR SHALL CONFORM TO OHIO EPA'S
RAINWATER AND LAND DEVELOPMENT MANUAL
FOR ESC GUIDANCE INCLUDING BEST
MANAGEMENT PRACTICES.
SHEET KEYNOTES
1. INLET PROTECTION, SEE 2/CE501
2. FIBER ROLLS/STRAW WATTLES, SEE 1/CE501
3. SILT FENCE, SEE 3/CE501
0 20 40 60
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684448_CE501.dwg
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PLAN VIEW
1. GRAVEL FILTER, SEE
NOTE C & D
2. EXTENT OF GRAVEL
FILTER
3. WIRE MESH BETWEEN
BLOCK AND GRAVEL,
SEE NOTE B
4. ROW OF CONCRETE
BLOCK, SEE NOTE A
5. INLET WITH GRATE
2 DROP INLET FILTER
NTS
1 FIBER ROLLS / STRAW WATTLES
NTS
(FT)
STAKES REQUIRED
FOR EACH WATTLE
WATTLE LENGTH
STAKES REQUIRED
2" to
STEP 1: INSTALL FILTER SOCK FILTER SOCK STAKING DETAIL
(FT)
SPACINGSLOPE
WATTLE SPACING
1:4 OR FLATTER
1:3 1:2 1:1
1. INSTALL WATTLES
SNUGLY INTO TRENCH.
ABUT ADJACENT
WATTLES TIGHTLY, END
TO END, WITHOUT
OVERLAPPING THE ENDS.
2. EXISTING GROUND, TYP
3. 2"x2" WOOD STAKE
4. BACKFILLED AND
COMPACTED SOIL TO
GROUND LEVEL
NOTES:
A. DRIVE STAKES AT EACH END AT
SPACING PER TABLE ABOVE UNTIL
WATTLE IS SECURE TO SLOPE. DO
NOT CRUSH WATTLE WHILE STAKING.
LIVE STAKES MAY BE USED FOR
PERMANENT INSTALLATIONS.
B. CONFORM TO MATERIAL
SPECIFICATIONS IN CHAPTER 6,
FILTER SOCK, OF OHIO EPA'S
RAINWATER AND LAND DEVELOPMENT
MANUAL.
STEP 2: BACKFILL SOIL AGAINST FILTER SOCK
2"
M
IN
3-4"
NOTES:
A. PLACE 4"X8"X12" CONCRETE BLOCKS LENGTHWISE ON THEIR SIDES IN A
SINGLE ROW AROUND THE PERIMETER OF THE INLET, WITH THE ENDS OF
ADJACENT BLOCKS ABUTTING. THE HEIGHT OF THE BARRIER CAN BE
VARIED, DEPENDING UPON DESIGN NEEDS, BY STACKING COMBINATIONS OF
THE SAME SIZE BLOCKS. THE BARRIER OF BLOCKS SHOULD BE AT LEAST 12"
HIGH BUT NO GREATER THAN 24" HIGH.
B. WIRE MESH SHOULD BE PLACED OVER OUTSIDE VERTICAL FACE (WEBBING)
OF THE CONCRETE BLOCKS TO PREVENT STONE FROM BEING WASHED
THROUGH THE BLOCK CORES. HARDWARE CLOTH OR COMPARABLE WIRE
MESH WITH 1/2 " OPENINGS SHOULD BE USED.
C. 2" STONE SHOULD BE PILED AGAINST THE WIRE TO THE TOP OF THE BLOCK
BARRIER, AS SHOWN.
D. IF THE STONE FILTER BECOMES CLOGGED WITH SEDIMENT SO THAT IT NO
LONGER ADEQUATELY PERFORMS ITS FUNCTION, PULL STONE AWAY FROM
BLOCKS, CLEAN AND/OR REPLACE.
E. CONFORM TO MATERIAL SPECIFICATIONS IN CHAPTER 6, BLOCK AND
GRAVEL DROP INLET FILTER, OF OHIO EPA'S RAINWATER AND LAND
DEVELOPMENT MANUAL.
BLOCK AND GRAVEL
SECTION
6" 6"
6"
2' -6
6"
5' -0
PLAN
ELEVATION
6' MAXIMUM
SPACING
NOTES:
A. BURY BOTTOM OF FILTER FABRIC 6" VERTICALLY BELOW
FINISHED GRADE.
B. 2"x4" DOUGLAS FIR OR STEEL FENCE POSTS.
C. STITCHED LOOPS TO BE INSTALLED DOWNHILL SIDE OF
SLOPE.
D. COMPACT ALL AREAS OF FILTER FABRIC TRENCH.
1. ANGLE BOTH ENDS OF
FILTER FABRIC FENCE TO
ASSURE SOIL IS TRAPPED.
2. INTERLOCKED 2"x4" POSTS
AND ATTACH FILTER FABRIC
MATERIAL
3. NOT USED
4. NEWLY GRADED OR
DISTRIBUTED SLOPE
5. USE STITCHED LOOPS
OVER 2"x4" POSTS, SEE
NOTE C
6. PROVIDE BASE COURSE
BACKFILL IN TRENCH, SEE
NOTE C
7. FITER FABRIC MATERIAL 36"
WIDE ROLLS.
2' -6
5'
-0
2' -6
3 SILT FENCE
NTS
1/ 2H
H xxxxxxx xxxxxxx xxx x
SECTION VIEW
x
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AUGUST 2019
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