B09_Amd8_-_Drawing_00-C3_15_Dec2025_0008.pdf
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- Solicitation number
- 140P2025R0082
About this file
This is a technical drawing sheet for water system details associated with the Deva Water and Wastewater System Rehabilitation project at Death Valley National Park. The drawing sheet (C3.15) illustrates four primary water infrastructure details: an air release valve, a curb stop assembly, an individual pressure reducing valve (PRV), and a blowoff valve, along with a typical tree protection detail for construction activities.
The air release valve detail specifies a Val-Matic Model 201C.2 or approved equal, integrated with a 1-inch electrofusion saddle tap on the HDPE water main, mounted to a 4x4 treated wood marker post with stainless steel straps. The curb stop assembly includes a Mueller H-10291 curb stop or approved equal, with a 2-inch Schedule 40 galvanized pipe wrapped in polyethylene plastic, drain pit with gravel, and adjustable cast iron valve box. The individual PRV detail requires a Watts Pressure Reducing Valve or approved salient equal, housed in a 14-inch by 19-inch NDS plastic irrigation box with lockable lid, supplied with 3/4-inch washed gravel base. The blowoff valve detail shows a 2-inch 45-degree bend configuration with drain waste ball valve and associated fittings. Tree protection requirements mandate temporary barriers placed at the drip-line of existing trees, with specifications referencing Project Spec Section 32 01 01, allowing for field adjustment by the Contracting Officer's Representative and contractor responsibility for maintaining perimeter fencing and tree protection throughout construction.
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Text version
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C3.15
BLOWOFF VALVE
TREE PROTECTION NOTES:
1. REFER TO PLAN AND PROFILE SHEETS FOR TREE
PROTECTION LOCATIONS. TREE PROTECTION LOCATION
MAY BE ADJUSTED IN THE FIELD BY THE CONTRACTING
OFFICER'S REPRESENTATIVE.
2. OUTSIDE EDGE OF TEMPORARY BARRIER SHALL BE
PLACED AT DRIP-LINE OF TREE. TREE GUARDS MAY BE
PLACED AROUND SINGLE TREES OR GROUPS OF TREES.
3. MOVABLE BARRIERS MAY BE SUBSTITUTED FOR
IN-GROUND BARRIERS. IT IS THE CONTRACTOR'S
RESPONSIBILITY TO ENSURE THAT PERIMETER OF
FENCING REMAINS AT THE DRIP-LINE OF THE TREE AND
THAT TREES ARE PROTECTED.
FINISH
GRADE
3'-0"
MIN.
VARIES, 6'-0" MIN.
4' -0
TEMPORARY BARRIER
PER PROJECT SPEC SECTION
32 01 01 - TREE PROTECTION
EXISTING TREE TO BE
PROTECTED DURING
CONSTRUCTION
IN-GROUND OR MOVABLE
POSTS
NTS
B
C3.15
TYPICAL TREE PROTECTION DETAIL
NTS
C
C3.15
INDIVIDUAL PRV
WATTS PRESSURE REDUCING VALVE OR
APPROVED SALIENT EQUAL
14" x 19" NDS PLASTIC IRRIGATION BOX
WITH LOCKABLE LID OR APPROVED
SALIENT EQUAL
FINISHED GROUND
3/4" WASHED GRAVEL,
6" MIN. DEPTH
1" WATER SERVICE LINE
INFLOW OUTFLOW
DATE:
DESIGNED:
TECH. REVIEW:
SUB SHEET NO.
PMIS/PKG NO.
DRAWING NO.
SHEET
OF
TITLE OF SHEET
WATER DETAILS 143
178069
169 513
DJ&A
DJ&A
M. WHELEHON
1.17.2025
DEATH VALLEY
NATIONAL PARK
318717 00-
C3.15
NTS
A
C3.15
AIR RELEASE VALVE
WATER MAIN
1" ELECTROFUSION
SADDLE TAP
VAL-MATIC MODEL 201C.2
AIR RELEASE VALVE OR
APPROVED SALIENT EQUAL
5' MINIMUM
ED
G
E O
F R
O
AD
/T R
AI
L
CURB STOP
BOX LID
DRAIN PIT WITH 8 CU FT
OF 3/8" GRAVEL.
EXTENSION
TYPE BASE
CURB BOX
PIPE SUPPORT (TYP.)
CURB STOP MUELLER
H-10291 OR APPROVED
SALIENT EQUAL
CORP STOP
1" HDPE DR 9
UNION
2" 90° BEND
2" SCH. 40 GALV. PIPE WRAPPED
IN POLYETHYLENE PLASTIC
HDPE WATER MAIN
ELECTROFUSION
SADDLE TAP
CORP STOP
DRAIN WASTE
BALL VALVE
2" THREADED
CAP AND PLUG
FINISHED GROUND
ADJUSTABLE
VALVE BOX
CAST IRON
VALVE BOX LID
4" WASHED GRAVEL, 6" MIN.2" 45° BEND
45°'
MUELLER AIR RELEASE VALVE
VAULT OR APPROVED EQUAL
24 SS MESH
CORROSION-RESISTANT SCREEN
3/4" GALV. RELIEF LINE (LOCATION
WILL BE DETERMINED IN THE FIELD)
12-18"
4X4 TREATED WOOD
MARKER POST
MOUNT RISER TO
WOOD POST WITH
TWO SS STRAPS
UNION VALVE
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