HomeMy WebLinkAboutW-433504C'7
C'7
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900 BEND
CAP / PLUG
TEE
450 BEND
2212° BEND
1114- BEND
B o
E,
MINIMUM BEARING AREA
AGAINST UNDISTURBED SOIL (SF) *
PIPE
SIZE
PRESSURE
O
O
O
O
O
4„
200
2/(1)
1/(NONE)
1/(NONE)
NONE
NONE
300
3/(2)
2/(2)
2/(1)
1/(1)
NONE
6"
200
4/(3)
3/(2)
3/(1)
1/(1)
1/(NONE)
300
6/(4)
4/(3)
3/(2)
2/(1)
1/(NONE)
8„
200
7/(5)
5/(3) 4/(3)
2/(2)
1/(1)
300
11/(8)
8/(5) 6/(4)
3/(2)
2/(1)
10"
200
11/(8)
8/(6) 6/(4)
3/(2)
2/(1)
275
16/(11)
11/(7) 9/(6)
11/(8) 9/(6)
5/(3)
3/(2)
12"
200
16/(11)
5/(3)
3/(2)
250
24/(16)
17/(11) 13/(9)
16/(11) 12/(8)
7/(5)
4/(3)
14
200
22/(13)
6/(4)
3/(2)
250
33/(22)
23/(16) 18/(12)
9/(6)
5/(3)
16"
200
29/(19)
21/(14)
16/(11)
8/(6)
5/(3)
225
32/(21)
23/(16)
17/(12)
9/(6)
5/(3)
18"
200
36/(24)
26/(17)
20/(13)
10/(7)
5/(4)
20"
200
45/(29)
32/(21)
24/(16)
13/(8)
7/(4)
24"
200
64/(43)
46/(30)
35/(23)
18/(12)
9/(6)
* VALUES BASED ON SAFE BEARING LOAD OF 2,000/(3,000) PSF
SOIL TYPE
MUCK OR PEAT
SOFT CLAY
SAND
SAND AND GRAVEL
CEMENTED WITH CLAY
HARD SHALE
NOTES:
1. MINIMUM BEARING AREA MUST BE ADJUSTED FOR PIPE SIZE, PRESSURE, AND SOIL CONDITIONS.
2. FITTINGS SHALL BE POLYWRAPPED PRIOR TO POURING CONCRETE BLOCKING.
SAFE BEARING LOAD (PSF)
0
1,000
2,000
3,000
4,000
10,000
3. CONCRETE BLOCKING SHALL BE CAST IN PLACE AND SHALL HAVE A MINIMUM OF 0.25 SF BEARING AREA AGAINST THE FITTING.
4. CONCRETE BLOCKING SHALL BEAR AGAINST FITTINGS ONLY AND SHALL BE CLEAR OF JOINTS TO PERMIT TAKING UP OR DISMANTLING
JOINT.
S. CONTRACTOR SHALL INSTALL BLOCKING ADEQUATE TO WITHSTAND FULL HYDROSTATIC TEST PRESSURE AS WELL AS TO CONTINUOUSLY
WITHSTAND OPERATING PRESSURE UNDER ALL CONDITIONS OF SERVICE.
6. ALL CONCRETE SHALL BE MECHANICALLY MIXED. JOB SITE MIXING, HAND -MIXED CONCRETE, AND MOBILE CONCRETE MIXERS ARE NOT
ALLOWED.
7. IN MUCK OR PEAT, ALL THRUSTS SHALL BE RESTRAINED BY PILES OR TIE RODS TO SOLID FOUNDATION OR MUCK OR PEAT SHALL BE
REMOVED AND REPLACED WITH BALLAST OF SUFFICIENT STABILITY TO RESIST THRUST.
8. CONCRETE BLOCKING SHALL BE LEFT OPEN OR SHEETED FOR MINIMUM 24 HOURS.
STD. PLAN - 330.1
PUBLIC WORKS CONCRETE BLOCKING APPROVED:
1.1-151*1 DEPARTMENT FOR HORIZONTAL FITTINGS 6/28/2(
• Martin Pastucha
1%09Public Works Administrator DATE
CONCRETE BLOCKING FOR HORIZONTAL FITTINGS
NOT TO SCALE
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TACOMA SEATTLE
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46972 �sv� SPOKANE TRI-CITIES
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Know what's below. SIONAL E� 253.383.2422 TEL 253.383.2572 FAX www.ahbl.com WEB
Call before you dig. 07/21/2025
METERED BACKFLOW ASSEMBLY
(TO BE OBTAINED FROM CITY)
(1) 2'2" CONTROL VALVE
(1) CONSTRUCTION METER
(1) RPBA
METER SUPPORT (BY CONTRACTOR)
NSF 61 SUPPLY HOSE
I LIV I r"11 RMRI DLVLI\I IVQ
HYDRANT ON EXISTING WATER MAIN
TEMPORARV RI nMLnCC Acc CRARl V
(1) 2" GAL
(1) 2" 90°
(1) 2" GAT
NEW DI WATER MAIN
POLYPIG STATION
(1) VERTICAL CROSS (M1xFL), SIZE TO MATCH WATER MAIN
(1) BLIND FLANGE WITH 2" TAP ON TOP OF CROSS
(1) TEMPORARY BLOW -OFF ASSEMBLY
(1) BLIND FLANGE ON BOTTOM OF CROSS
(1) PLUG (MJ) ON END OF CROSS WITH TEMPORARY THRUST BLOCKING
NOTES:
1. THE BACKFLOW PREVENTION ASSEMBLY AND SUPPLY HOSE MUST BE DISCONNECTED DURING HYDROSTATIC PRESSURE TESTING OF THE
NEW WATER MAIN.
2. POLYPIG AND ALL DEBRIS SHALL BE REMOVED FROM SUMP OF VERTICAL CROSS VIA SANITARY METHOD PRIOR TO DISINFECTION OF NEW
WATER MAIN.
3. UPON REMOVAL OF POLYPIG, REMOVE TEMPORARY BLOW -OFF ASSEMBLY AND INSTALL 2" PLUG.
4. THE NEW WATER MAIN SHALL BE CONNECTED TO THE EXISTING SYSTEM ONLY AFTER NEW WATER MAIN IS POLYPIGGED, DISINFECTED
AND SATISFACTORY BACTERIOLOGICAL SAMPLE RESULTS ARE OBTAINED.
5. THE INTERIORS OF ALL PIPES AND FITTINGS TO BE USED IN FINAL CONNECTION MUST BE SWABBED OR SPRAYED WITH A 5-6% AVAILABLE
CHLORINE SOLUTION.
STD. PLAN - 300.7
PUBLIC WORKS APPROVED:
'�1` DEPARTMENT POLYPIGGING NEW WATER MAINS - J
6/28/2(
Martin Pastucha DATE
Public Works Administrator
;N POLYPIGGING NEW WATER MAINS
TO
ME
I—'LHIN
BOXES DRAINING GRAVEL
NOTES:
1. ALL DOUBLE CHECK VALVE ASSEMBLIES (DCVA's) MUST BE LISTED ON LATEST LIST OF "BACKFLOW PREVENTION
ASSEMBLIES APPROVED FOR INSTALLATION IN WASHINGTON STATE", PUBLISHED BY STATE OF WASHINGTON
DEPARTMENT OF HEALTH.
2. THE OWNER/APPLICANT MUST OBTAIN A SEPARATE CITY OF RENTON PLUMBING PERMIT FOR THE INSPECTION
OF THE INSTALLATION OF THE DCVA AND PIPING. THE OWNER SHALL FURNISH, INSTALL AND MAINTAIN THE
DCVA AND ALL PIPING AND APPURTENANCES SHOWN ON THIS PLAN.
3. THE DCVA MUST BE TESTED BY A STATE CERTIFIED BACKFLOW ASSEMBLY TESTER AFTER ITS INITIAL
INSTALLATION, AFTER REPAIRS AND ANNUALLY THEREAFTER AT OWNER'S EXPENSE. A COPY OF THE TEST
REPORT SHALL BE SENT OR FAXED TO CITY OF RENTON WATER UTILITY ENGINEERING DEPT., ATTN: WATER
UTILITY CROSS —CONNECTION CONTROL SPECIALIST, FAX NO. 425-430-7241.
4. DCVA AND METER BOX SHALL BE LOCATED ON PRIVATE PROPERTY AND AS NEAR AS POSSIBLE TO THE
WATER METER.
Y
► PUBLIC WORKS 34�� TO 2" DOUBLE CHECK VALVE STD. PLAN — 340.8
' DEPARTMENT ASSEMBLY FOR IRRIGATION OR
C
RESIDENTIAL FIRE SPRINKLER MARCH 2O10
DOUBLE CHECK VALVE ASSEMBLY
NOT TO SCALE
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