HomeMy WebLinkAbout260.00DOWNSPOUT
BUILDING ROOF
(CONTRIBUTING IMPERVIOUS AREA
SEE NOTE 4)
PONDING
EXTENTS
GUTTER
BIRD CAGE OVERFLOW
ROCK OR VEGETATION LINED DITCH,
OR PIPED CONNECTION, SEE NOTE 2
TOP OF SLOPE
BOTTOM OF SLOPE
(SHAPE CAN VARY TO FIT SITE, MINIMUM WIDTH = 18")
RIGHT-OF-WAY (SIDEWALK OR ALLEY)PARCEL BOUNDARY5' MIN.,
SEE NOTE 1
5' MIN.,
SEE NOTE 1
GENERAL NOTES:
1.MINIMUM UTILITY SETBACKS AND PROTECTION MEASURES MUST CONFORM TO CURRENT CITY STANDARDS, STD. PLANS 265.00, 265.10, AND 265.20, AND OTHER
UTILITY PROVIDER REQUIREMENTS. COORDINATE WITH CITY ENGINEER IN THE EVENT OF UTILITY CROSSINGS OR CONFLICTS.
2.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
PIPED CONNECTION TO STORM
DRAIN SYSTEM, SEE NOTE 2
DRIVEWAY
(CONTRIBUTING IMPERVIOUS AREA
SEE NOTE 4)
SEE NOTE 3
ROCK SPLASH PAD PER STD. PLAN 260.10
DISPERSION TRENCH (TYP.),
SEE STD. PLAN 260.10
TOP OF PONDING
(USE AREA FOR SIZING, SEE NOTE 4)
OPTIONAL COMPACTED EARTH
BERM, 2' MIN. TOP WIDTH
2.5H:1V (OR FLATTER)
A
260.10
NOTES:
1.TOP OF RAIN GARDEN SHALL BE 5 FEET MIN. FROM BUILDINGS WITHOUT BASEMENT AND 10 FEET MIN. FROM BUILDINGS WITH BASEMENTS.
2.SLOPE PIPED CONNECTION AT 2% (PREFERRED), 1% MIN. USE 6" MIN. ASTM D1785 SCH 40 PVC. CONNECTIONS TO STORM DRAIN SYSTEM REQUIRE CITY
INSPECTION.
3.SHEET FLOW INTO RAIN GARDEN MAY BE KEPT WIDELY DISTRIBUTED OVER A STABILIZED SURFACE (PAVEMENT, PEA GRAVEL, GRASS). IF CONCENTRATED,
PROVIDE A SWALE WITH DECORATIVE ROCK AND VEGETATION TO PREVENT EROSION.
4.RAIN GARDEN SIZE AT TOP OF PONDING (OVERFLOW ELEVATION) TO BE AT LEAST 5% OF CONTRIBUTING HARD SURFACE AREA. IF LAWN/LANDSCAPE AREA
ALSO DRAINS TO RAIN GARDEN, INCREASE SIZE BY 2% OF LAWN/LANDSCAPE AREA. MAXIMUM CONTRIBUTING AREA SHALL BE 5,000 SF.
4' MIN.
6" MIN. FREEBOARD
OPTIONAL SURFACE
OVERFLOW WITH
CITY APPROVAL
RAIN GARDEN PLAN
STD. PLAN - 260.00
PUBLIC WORKS
DEPARTMENT
APPROVED:
DATEGregg Zimmerman
Public Works Administrator
UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
DocuSign Envelope ID: 6EECF5B6-602A-4E4A-B436-A317AA638878
9/28/2018 | 9:45 AM PDT