HomeMy WebLinkAboutAPPROVED STORM REPAIR - P_DrainagePlan_Maple_Highlands_Lot12_250306_v5SD SD SD SD
SDSDSD
SD
SD
GRAPHIC SCALE015 30
45
1 INCH = 30 FT.
5095200120
LANDSCAPE WALL,
LESS THAN 4' TALL (TYP.)
SECTION C.2 ON-SITE BMPS
12/12/2016 2017 City of Renton Surface Water Design Manual
C-60
FIGURE C.2.4.B SCHEMATIC REPRESENTATION OF A TYPICAL GRAVEL-FILLED DISPERSION
TRENCH FOR BASIC DISPERSION
MAXIMUM 50-FOOT TRENCH WITH
NOTCHED BOARD (SEE FIGURE C.2.1.D)
25-FOOT (MIN.) VEGETATED
FLOWPATH SEGMENT
25-FOOT (MIN.) VEGETATED
FLOWPATH SEGMENT
SIMPLE 10- FOOT TRENCH
24" MIN.
MAX 15% SLOPE
TRENCH SECTION
NTS
3/4" TO 1-1/2"
WASHED
DRAIN ROCK
RIGID PEFORATED
PIPE, 4" MIN. DIA.
LEVEL OUTLETMAX 20% SLOPE
18" MIN.
6" MIN.
= 700 SQ. FT.
= 3,500 SQ. FT.
SLOPE
SMALL CATCH BASIN OR YARD DRAIN
TYPE 1 CB
PLAN VIEW OF ROOF
NTS
FLOWPATH SEGMENTS
MUST NOT OVERLAP