ATT_2_-_Mahogany.dwgs.Final.12.11.2012.signed.pdf

FOREST SERVICE OUTDOOR RECREATION ACCESSIBILITY GUIDELINES

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1. SEE SHEET W2 FOR WATERLINE PLAN AND PROFILES.

2. ALL WATER LINES SHALL BE SLOPED A MINIMUM 2% TO DRAIN.

3. BURY WATER LINES A MINIMUM OF 60 INCHES. ADDITIONAL DEPTH MAY BE

REQUIRED TO MAINTAIN A MINIMUM SLOPE OF 2%.

4. LOCATION AND ORIENTATION OF ALL WATERLINES, STRUCTURES AND HYDRANTS

SHALL BE APPROVED BY THE CONTRACTING OFFICER PRIOR TO INSTALLATION.

5. AN EXTENSIVE EFFORT HAS BEEN MADE TO LOCATE ALL POSSIBLE EXISTING

UTILITY LINES FROM RECORDS AND EVIDENCE IN THE FIELD, HOWEVER, THE

COMPLETENESS OR ACCURACY OF THE LOCATIONS SHOWN CANNOT BE

GUARANTEED. THE CONTRACTOR IS RESPONSIBLE FOR ESTABLISHING THE

LOCATION OF ALL EXISTING UTILITIES. ANY LOCATION STAKED OR SHOWN IS

APPROXIMATE. CALL 811 TO HAVE UTILITIES MARKED BEFORE BEGINNING

CONSTRUCTION. IF CONFLICTS ARE FOUND, NOTIFY THE CONTRACTING

OFFICER.

6. THE MINIMUM ALLOWABLE BENDING RADIUS FOR HDPE PIPE IS 30 TIMES THE

NOMINAL PIPE DIAMETER.

NOM. PIPE DIA. MIN. BENDING RADIUS

1" 2'-6" 2" 5'-0" 3" 7'-6" 4" 10'-0"

7. INSTALL THE WATER SYSTEM ACCORDING TO APPLICABLE FEDERAL, STATE AND

LOCAL REGULATIONS FOR PUBLIC DRINKING WATER SYSTEMS.

8. CLEARING LIMITS SHALL BE 5 FEET ON BOTH SIDES OF THE WATERLINE TRENCH.

THE CONTRACTOR SHALL USE CAUTION AND AVOID DAMAGE TO TREES AND

VEGETATION. THE CONTRACTOR SHALL CONFINE ALL OPERATIONS AND

ACTIVITIES TO WITHIN THE CLEARING LIMITS. DO NOT REMOVE ANY LARGE

PONDEROSA TREES WITHOUT APPROVAL FROM THE CONTRACTING OFFICER.

CHIP ALL SLASH ON SITE AND DISPOSE AFTER BACKFILL AND SEEDING IS

COMPLETE. USE AS A MULCH FOR SEED COVER AS SPECIFIED (SEE

SPECIFICATIONS).

9. CONNECTIONS BETWEEN NEW AND EXISTING WATERLINES SHALL BE INSTALLED

IN MANNER RECOMMENDED BY THE PIPE MANUFACTURER AND APPROVED BY

THE CONTRACTING OFFICER. USE HDPE/GSP TRANSITION FITTINGS FOR

CONNECTIONS TO GALVANIZED STEEL. USE HDPE/PVC TRANSITION FITTINGS

FOR CONNECTIONS TO PVC PIPE. COMPRESSION-TYPE FITTINGS ARE NOT

ALLOWED.

10. WHERE UTILITY LINES CROSS ASPHALT ROADS, SAW CUT AND REPAIR WITH HOT

ASPHALT MIX. SEE TRENCH DETAIL, SHEET W3.

11. WHERE ENCOUNTERED, REMOVE AND DISPOSE OF EXISTING WATERLINE TO A

DEPTH OF 12" BELOW FINISHED GRADE. CAP AND ABANDON REMAINDER IN

PLACE.

12. ON LATERALS AND DRAINLINES, INSTALL CURB VALVES AND BOXES 2 FEET FROM

TEE OR LINE TO BE DRAINED UNLESS SHOWN OTHERWISE.

13. ALL HYDRANT LATERALS SHALL BE 1" HDPE UNLESS DESIGNATED OTHERWISE.

SLOPE ALL HYDRANT LATERALS TO DRAIN TOWARD THE MAINLINE.

14. THE GOVERNMENT WILL OBTAIN PERMITS FOR THE WATER SYSTEM.

15. AVOID CONSTRUCTION OF WATER LINES UNDER THE DRIP EDGE OF ALL LARGE

TREES GREATER THAN 14 INCHES DIAMETER AT BREAST HEIGHT (DBH).

16. DO NOT INSTALL WATER HYDRANTS, AIR RELEASE VALVES, PRESSURE

REDUCING VALVES OR ANY OTHER PLUMBING IN UTILITY BOXES UNTIL THE

UPSTREAM WATERLINES HAVE BEEN FULLY FLUSHED OF DEBRIS ACCORDING TO

THE SPECIFICATIONS.