HomeMy WebLinkAbout234.10SCALE:
CROSS SECTION A
234.00NTS
EMERGENCY OVERFLOW WS
DESIGN WS
EMERGENCY OVERFLOW SPILLWAY
CROSS SECTION B HAS 2 OPTIONS
OVERFLOW WSPOND DESIGN WS
DESIGN WS
NOTES:
1.THIS DETAIL IS A SCHEMATIC REPRESENTATION ONLY. ACTUAL CONFIGURATION WILL VARY DEPENDING ON SPECIFIC SITE CONSTRAINTS AND APPLICABLE DESIGN CRITERIA.
2.ACCESS ROAD AND RAMP SHALL MEET REQUIREMENTS IN STANDARD PLAN 234.50.
3.SIDE SLOPES (INTERIOR AND EXTERIOR) SHALL NOT BE STEEPER THAN THREE (3) FEET HORIZONTAL TO ONE (1) FOOT VERTICAL.
4.OPEN PONDS SHALL NOT BE LOCATED IN DEDICATED PUBLIC RIGHT-OF-WAY.
5.EXPOSED EARTH ON THE POND BOTTOM AND INTERIOR SIDE SLOPES SHALL BE SODDED OR SEEDED WITH AN APPROPRIATE SEED MIXTURE PER SECTION 5.1.1.1 OF THE CITY
OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM). ALL REMAINING AREAS OF THE TRACT MUST EITHER BE PLANTED WITH GRASS, OR BE LANDSCAPED IN
ACCORDANCE WITH LANDSCAPING REQUIREMENTS INCLUDED IN SECTION 5.1.1.1 OF THE RENTON SWDM.
6.LANDSCAPING, TREES, POND GEOMETRY AND FENCING STANDARDS ARE SPECIFIED IN STANDARD PLAN 234.40.
7.SEE SECTION 5.1.1.2 OF THE RENTON SWDM TO CALCULATE THE REQUIRED WEIR WIDTH.
8.WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE ADAPTER OR APPROVED EQUAL). WHEN CONNECTING TO AN
EXISTING PIPE, USE A FABRICATED SAND COLLAR OF THE SAME MATERIAL AS THE CONNECTING PIPE.
9.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
DEBRIS BARRIER PER
STD. PLAN 223.00
OVERFLOW WS
100 YR EMERGENCY OVERFLOW WATER SURFACE (WS)
OUTLET FLOW CONTROL STRUCTURE
PER STD. PLANS 237.00-237.20
6" SEDIMENT
STORAGE
TOP WIDTH OF
BERM. 6' MIN.
12'-15' MIN FOR
ACCESS ROAD
3
13
1
KEY, IF REQUIRED
BERM
EMBANKMENT
5' MIN.
SETBACK
PROPERTY LINE
EXISTING GROUND
CIRCUMFERENCE LENGTH OF
OPENING FOR 100-YR FLOW
FRAME/GRATE FOR SECONDARY INLET. PROVIDE
VERTICAL BARS IN FRAME AT 4" O.C. (OTHER
SYSTEMS ACCEPTABLE IF APPROVED BY THE CITY).
SEE ALSO THE SEPARATE OVERFLOW STRUCTURE,
STD. PLAN 234.20.
4" ASPHALT (FOR SPILLWAYS ON ACCESS ROADS)
VARIES, SEE NOTE 7
100-YR EMERGENCY
OVERFLOW WS
6" MIN. FREEBOARD
OVERFLOW WS
3
1 3
1
1' ROCK LINING
MAX STONE SIZE - 12"
MEDIAN STONE SIZE - 8"
MIN STONE SIZE - 4"
COMPACTED EMBANKMENT
ROCK LINING PER PER CROSS SECTION B
DESIGN WS
OVERFLOW WS
SCALE:
CROSS SECTION B
234.00NTS
SCALE:
CROSS SECTION C
234.00NTS
SECTION AA
EXISTING GROUND
6" MIN. FREEBOARD
SEE NOTE 8 (TYP.)XXSEE STD. PLAN 234.40 FOR FENCE REQUIREMENTS
TYPICAL DETENTION POND SECTIONS
STD. PLAN - 234.10
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEMartin Pastucha
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 3B1B34D3-7E0A-476C-ADB3-4329FFE0C108
8/13/2020 | 8:48 AM PDT