6-15RESTORATION DEPTH
VARIES.
TRACE TAPE 12" TO 18" UNDER
THE FINAL GRADE.
\'
TRENCH BACKFlLL
SEE NOTE 1, 2, 3
& 5
BEDDWG MATERIAL
SEE NOTE 4
`~~~ TRACER WIRE {SEE GENERAL
WATER NOTES N0. 7)
6~ MIN.
6° MIN.
UNDISTURBED SOIL
~1QTES:
1. A MINIMUM COVER OF ,3.5' SHALL BE MAINTAINED, EXCEPT A5 REQUIRED AT CONNECTION"°°,POINTS.
2. NATIVE BACKFJLL SHALL CONSIST OF CRUSHED, PROCESSED, OR NATURALLY OCCURRING GRANULAR
MATERIAL. IT SHALL BE ESSENTIALLY FREE FROM VARIOUS TYPES OF WOOD WASTE OR QTHER
EXTRANEOUS OR OBJECTIONABLE MATERIALS. 1T SHALL NAVE SUCH CHARACTERISTICS OF' SIZE AND
SNAPS THAT IT WILL COMPACT REAplLY COMPACT.
3. NATIVE TRENCH BAGICFILL MATERIAL SHALL BE SORTED OR SCREENED SO THAT THE MAXIMUM
AGGREGATE SHALL iS 6-INCHES.
4. PIPE BEDDING MATERIAL SHALL BE SAND OR OTHER CITY APPROVED EQUAL. NO SUBSTL~TIONS WILL
BE ALLOWED WITHOUT WRITTEN AUTHORIZATION FROM THE CITY OF YELM.
5. WHERE NATIVE MATERIALS HAVE BEEN DEEMED UNACCEPTABLE BY THE GJTY, TRENCH BAGKFILL
SHALL MEET THE WSDOT STANDARD SPECIFICATIONS FOR THE P/PE TYPE BEING SPECIFIED:
CITY OF YELM, WASHINGTON I
DEPT. OF PUBLIC WORKS
TYPICAL WATER' FAIN
TRENCH 8e BED'D1NG
APPRQVES ~ DWG. N0.
t ~ v.~-~~-_._---------
PUBLIC WORKS DIRECTOR DATE ~ "'
DES. OWN. CKD. DATE
ES JEG JEG ! 6~ZQOS