HomeMy WebLinkAbout234.10CONTROLSTRUCTURE
EMERGENCY OVERFLOW WS
OVERFLOW WS
V
p
POND DESIGN WS p
a
DEBRIS BARRIER
6" SEDIMENT
STORAGE
V POND DESIGN
W.S.
TOP WIDTH OF BERM
6' MIN.12'/15' MIN.
FOR ACCESS ROAD
EXISTING GROUND
PROFILE
,wmn
MAXIMUM ELEVATION
0
10 -yr W.S.
KEY, IF REQUIRED
SECTION A -A
SECTION a -a
SECTION B -B has 2 options
L
(AS REQUIRED)
CIRCUMFERENCE LENGTH OF
OPENING FOR 100 yr FLOW
OVERFLOW WS p
FRAME/GRATE FOR SECONDARY INLET.
PROVIDE VERTICAL BARS IN FRAME @
4"O.C. (OTHER SYSTEMS ACCEPTABLE IF APPROVED BY DDES)
SEE ALSO THE SEPARATE OVERFLOW STRUCTURE
2" ASPHALT
(FOR SPILLWAYS ON ACCESS ROADS)
EMERGENCY OVERFLOW WATER SURFACE
6"MIOVERFLOWWSI��o a�0o
Ooio�oo000 p DESIGN WS
SECTION B -B V ROCK LINING
Emergency Overflow Spillway
NTS
OVERFLOW WS
jDESIGN WS EMERGENCY OVERFLOW WS p
p = OHO
ao Q ROCK LINING PER
40
COMPACTED COMPACTED o
EMBANKMENT
/ SECTION C -C
NOTE:
1.This detail is a schematic representation only. Actual configuration
will vary depending on specific site constraints and applicable
design criteria.
2.Access Road shall meet the following design criteria.
2.1. maximum grade shall be 15 % for asphalt paving and 12 % for gravel or modular grid paving.
2.2. Outside turning radius shall be 40 feet, minimum.
2.3. Fence gates shall be located only on straingh section of road.
2.4. Access roads shall be 15 feet in width on curves and 12 feet n straight sections.
2.5. A paved apron shall be provided where access roads connect to paved public roadways.
3. All facilities shall be fences. Fence shall be provided around facility allowing proper maintenance per standard details unless
otherwise specified.
Y
+ + PUBLIC WORKS TYPICAL DETENTION POND STD. PLAN - 234.10
DEPARTMENT SECTIONS
MARCH 2008