HomeMy WebLinkAbout263.10WIDTH ≤ 25 FT FOR
A 100-FT NVFS
WIDTH ≤ 50 FT FOR
A 200-FT NVFS
ROCK STRIP TO BE 2' WIDE BY MIN.
4" THICK. 3/4" - 1 1/2" WASHED DRAIN
ROCK OR GRAVEL BACKFILL FOR
DRYWELLS PER WSDOT STD.
SPECIFICATION SECTION 9-03.12(5).
EDGE OF UNDISTURBED NATIVE
VEGETATION
SHEET FLOW
≤ 5%
SLOPE ≤ 15% SLOPE
100 FT MIN.
NATIVE VEGETATED
FLOWPATH SEGMENT
(NVFS)
IMPERVIOUS SURFACE
PERVIOUS SURFACE
GENERAL NOTES:
1.ALL TREES WITHIN THE NATIVE GROWTH RETENTION AREA AT THE TIME OF PERMIT
APPLICATION SHALL BE RETAINED, ASIDE FROM APPROVED TIMBER HARVEST ACTIVITIES AND
THE REMOVAL OF DANGEROUS AND DISEASED TREES.
2.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
FULL DISPERSION SHEET FLOW -
FLAT/MODERATE SLOPE DRIVEWAYS
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
STD. PLAN - 263.10
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT