B09_Amd8_-_QR63_Attach_Drawing_00-C3_16_Dec2025_0008.pdf
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- Solicitation number
- 140P2025R0082
About this file
This is a technical drawing sheet for water and wastewater infrastructure details prepared for the Deva Water and Wastewater System Rehabilitation project at Death Valley National Park. The drawing specifications are dated January 17, 2025, and provide detailed construction standards for the installation and separation of water and sewer lines.
The drawing contains four primary detail sections addressing critical infrastructure requirements. Detail A specifies crossing variance requirements, mandating that sewer lines be installed as single 20-foot segments centered over crossings and cased in 6 inches of concrete for 10 feet on each side, with a minimum 18-inch vertical separation maintained between water and sewer mains. Detail B addresses water-sewer pipe separation standards, requiring that at crossings, one full length of water main pipe be positioned to place both joints as far from sanitary sewer mains as possible, with provisions allowing less than 18 inches separation when one standard length of gravity sewer is AWWA pressure pipe at approximately 90-degree angles. Detail C illustrates pipe armoring specifications using concrete casing (1 foot on all sides) for sewer or water lines. Detail D presents pressure reducing valve vault specifications, including requirements for 6-foot diameter precast manhole valve pits with CLA-VAL Series 90 pressure reducing valves, with specific size requirements (8-inch or 4-inch) based on station locations, 3-foot minimum seasonal cover depth, and interior components such as stainless steel pipe supports, floor drains with pest screens, and ladder rungs. The drawing references equipment specifications including East Jordan Iron Works cast iron rings and covers marked "WATER" installed 6 inches above finish grade.
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Text version
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SEWER LINE
18"
MIN.
WATER LINE
CASE SEWER LINE IN
CONCRETE (1' ON ALL SIDES)
FOR 10' ON EACH SIDE OF THE
CROSSING
NOTES:
1. SEWER LINE IS TO BE INSTALLED AS ONE 20' STICK THAT IS CENTERED OVER THE CROSSING.
2. SEWER LINE TO BE CASED IN 6" OF CONCRETE FOR 10' ON EACH SIDE OF THE CROSSING.
3. WATER LINE WILL BE FREE OF FITTINGS OR JOINTS WITHIN 10' OF THE CROSSING.
4. ENSURE 18" MINIMUM VERTICAL SEPARATION BETWEEN WATER AND SEWER MAINS AT THE CROSSING.
1' MIN
BEND OR FITTING
10' MIN
18"
MIN.
WATER LINE
SEWER LINE
(20' STICK CENTERED
OVER CROSSING)
10' FROM EDGE OF
PIPE ON BOTH SIDES
CASE SEWER LINE IN
CONCRETE (1' ON ALL SIDES)
FOR 10' ON EACH SIDE OF THE
CROSSING1' ON ALL SIDES
OF SEWER LINE
DATE:
DESIGNED:
TECH. REVIEW:
SUB SHEET NO.
PMIS/PKG NO.
DRAWING NO.
SHEET
OF
TITLE OF SHEET
WATER DETAILS 143
178069
170 513
DJ&A
DJ&A
M. WHELEHON
1.17.2025
DEATH VALLEY
NATIONAL PARK
318717 00-
C3.16
NTS
A
C3.16
CROSSING VARIANCE DETAIL
10'-0" MIN.
PIPE SEGMENT
LENGTH "L"
L/2
PIPE SEGMENT
LENGTH "L"
L/2
SEWER
LINE
WATER LINE
SEWER LINE
PARALLEL ARRANGEMENT PERPENDICULAR ARRANGEMENT
18"
MIN.
WATER
LINE
WATER
LINE
12"
MIN.
WATER-SEWER SEPARATION NOTES:
1. AT CROSSING ONE FULL LENGTH OF WATER MAIN PIPE SHALL BE LOCATED SO THAT BOTH JOINTS WILL BE AS FAR FROM THE SANITARY SEWER MAIN AS
POSSIBLE.
2. LESS THAN 18 INCHES OF SEPARATION IS PERMITTED WHEN ONE STANDARD LENGTH OF GRAVITY SEWER AT THE CROSSING IS AWWA PRESSURE PIPE
AND THE CROSSING IS APPROXIMATELY 90°.
3. "L" IS A STANDARD LENGTH OF PIPE AS SUPPLIED BY A PIPE MANUFACTURER.
4. WHERE A WATER MAIN CROSSES UNDER A SEWER, ADEQUATE STRUCTURAL SUPPORT MUST BE PROVIDED FOR THE SEWER TO MAINTAIN LINE AND
GRADE AND TO PREVENT DAMAGE TO THE WATER MAIN.
12" MIN.
NTS
B
C3.16
WATER-SEWER PIPE SEPARATION DETAIL
SEWER OR
WATER LINE
VARIES
CASE SEWER OR WATER LINE
IN CONCRETE (1' ON ALL SIDES)
1' ON ALL SIDES OF
SEWER OR WATER LINE
NTS
C
C3.16
PIPE ARMORING DETAIL
CONCRETE
ADJUSTING RINGS
EAST JORDAN IRON WORKS 3770 CAST IRON
RING AND COVER MARKED "WATER", OR
APPROVED EQUAL
INSTALL 6" ABOVE
FINISH GRADE
GATE VALVE SEE TABLE
BELOW FOR SIZES, TYP.
3' MIN. COVER FOR
SEASONAL
NTS
D
C3.16
PRESSURE REDUCING VALVE VAULT DETAIL
A C3.12
6' DIA. PRECAST
MANHOLE VALVE PIT,
CLA-VAL SERIES 90 PRESSURE
REDUCING VALVE OR APPROVED EQUAL,
SEE TABLE BELOW FOR SIZE
3' MIN. COVER FOR
SEASONAL
(WINTERIZED)
OPERATION
STATION SIZE
CW 332+92.00 8-INCH
CW 364+56.00 8-INCH
CW 310+47.00 8-INCH SERIES 50 PRESSURE RELIEF VALVE
FW 406+72.98 4-INCH
FINISH GRADE
SEAL PIPE PENETRATIONS WITH
NON SHRINK GROUT, TYP.
1' MIN.
PIPE SUPPORTS,TYP.4" STAINLESS STEEL
FLOOR DRAIN WITH
STAINLESS STEEL
MESH PEST SCREEN
3/4" CRUSHED AGGREGATE
FOR DRAINAGE
LADDER RUNG
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