HomeMy WebLinkAbout220.00RIGID PIPE NOTES:
1.PIPE COMPACTION LIMITS SHOWN ON THIS PLAN ARE FOR PIPE
CONSTRUCTION IN AN EMBANKMENT. FOR PIPE CONSTRUCTION IN
A TRENCH, THE HORIZONTAL LIMITS OF THE PIPE COMPACTION
ZONE SHALL BE THE WALLS OF THE TRENCH.
2.O.D. IS EQUAL TO THE OUTSIDE DIAMETER OF A PIPE OR THE
OUTSIDE SPAN OF PIPE-ARCH.
3.SEE STANDARD WSDOT/APWA SPECIFICATIONS SECTION 2-09.4 FOR
TRENCH WIDTH.
4.PIPE ZONE BEDDING AND BACKFILL MATERIAL SHALL BE PLACED IN
6" LOOSE LAYERS AND COMPACTED TO 95% MAXIMUM DENSITY.
5.EXCAVATE UNSTABLE MATERIAL DOWN TO FIRM SOIL AND REPLACE
WITH FOUNDATION MATERIAL CLASS A OR B PER STANDARD
WSDOT/APWA SPECIFICATIONS SECTION 9-03.17.
GRAVEL BACKFILL FOR PIPE ZONE BEDDING (WSDOT 9-03.12(3))
OR MAINTENANCE ROCK (WSDOT 9-03.9(4))
CIRCULAR PIPE
FOUNDATION MATERIAL,
IF REQUIRED, SEE NOTE 5
SPAN 6"
PIPE - ARCH
6"
PIPE TYPE MINIMUM
COVER (FT)PUBLIC?PRIVATE?ALLOWED IN ZONE 1
OF THE APA?
CORRUGATED
STEEL PIPE 2.0 YES YES YES
SPIRAL RIB STEEL
PIPE 2.0 YES YES YES
PLAIN CONCRETE
PIPE (PCP)2.0 NO YES NO
REINFORCED
CONCRETE PIPE
(RCP)
1.0 YES YES NO
DUCTILE IRON PIPE 1.0 YES YES YES
FOUNDATION
LEVEL
RISE
TRENCH WIDTH,
SEE NOTE 3
CIRCULAR PIPE
DIAMETER MINIMUM DISTANCE
BETWEEN BARRELS
12" TO 24"12"
30" TO 96"DIAMETER / 3
102" TO 180"48"
PIPE-ARCH
SPAN MINIMUM DISTANCE
BETWEEN BARRELS
18" TO 36"12"
43" TO 142"SPAN / 3
148" TO 199"48"
TRENCH WIDTH,
SEE NOTE 3
6"
O.D.
6"
FOUNDATION
LEVEL
PIPE ZONE BEDDING AND
BACKFILL, SEE NOTE 4
FOUNDATION MATERIAL,
IF REQUIRED, SEE NOTE 5
PIPE ZONE BEDDING AND
BACKFILL, SEE NOTE 4
PIPE ZONE BEDDING AND
COMPACTION - RIGID PIPE
STD. PLAN - 220.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: E212B987-C626-4330-A5D4-D055A0107AF9
10/19/2022 | 2:52 PM PDT