HomeMy WebLinkAbout262.50TABLE: PLANTING ZONES
ZONE PLANT TYPE LOCATION
1 EMERGENTS, PERENNIALS & LOW SHRUBS (PLANTS
THAT CAN TOLERATE STANDING WATER)FACILITY BOTTOM
2
EMERGENTS, PERENNIALS & LOW SHRUBS (PLANTS
THAT CAN TOLERATE OCCASIONAL STANDING
WATER)
LOWER SLOPE TO TOP OF PONDING
3 GROUNDCOVERS / SHRUBS UPPER SLOPE / SIDEWALK GRADE
ACCENT SHRUB (SELECT APPROPRIATE SHRUB
BASED ON ZONE)SIDEWALK GRADE / LOWER SLOPE / FACILITY BOTTOM
TREE UPPER SLOPE, SEE NOTE 1
NOTES:
1.WHERE NOT CONFLICTING WITH REQUIRED CLEARANCES OR UTILITIES, TREES MAY BE LOCATED IN BIORETENTION. REDUCE
BOTTOM WIDTH TO 6" MIN. AND INCREASE SIDE SLOPE TO 1.5H:1V ADJACENT TO TREE. TREES TO BE LOCATED ONLY OUTSIDE OF
LINER FOR LINED FACILITIES.
ROADWAY
TRANSITION ZONE SOIL,
SEE STD. PLAN 262.20
2"-4" DEPTH ARBORIST
WOOD CHIP MULCH,
SEE STD. PLAN 262.60
BIORETENTION SOIL MIX,
SEE STD. PLAN 262.60
SIDEWALK OR LANDSCAPING
SCARIFIED AND UNCOMPACTED SUBGRADE
2"-12" PONDING
DEPTH
18" MIN.
BOTTOM WIDTH
MIN. 18"
3 2 1 2 3
PLANTING ZONES,
SEE BELOW
1
2
3
1 2 3
3
GENERAL NOTES:
1.ALL PLANTS SHALL BE SELECTED WITH A MAXIMUM MATURE HEIGHT NOT GREATER THAN 30-INCHES ABOVE THE TOP OF THE
FACILITY, WITH THE EXCEPTION OF TREES AND ACCENT SHRUBS.
2.SEE STD. PLANS 262.00, 262.10, AND 262.20 FOR SECTION VIEWS OF BIORETENTION FACILITIES.
3.SEE THE CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM) TABLE C.2.6.A FOR A SELECTION OF
APPROVED WATER TOLERANT PLANTS. ADDITIONAL SPECIES ARE ALLOWED WITH CITY APPROVAL.
4.SELECT A MINIMUM OF 50% EVERGREEN PLANTS.
5.PLANTS ADJACENT TO STREET, DRIVEWAY, OR SIDEWALK SHALL BE SELECTED AND SPACED TO ALLOW ACCESS TO
VEHICLES AND NOT IMPEDE PEDESTRIANS.
6.PLANTS SHALL BE SPACED TO ENSURE CLEAR ACCESS AND UNIMPEDED FLOW FROM INLETS, OUTLETS, AND OVERFLOWS.
7.CONTINUE MULCH FOR A MINIMUM OF 2-FEET PAST THE TOP OF BANK ELEVATION OR INSTALL LANDSCAPE EDGING IF
FACILITY IS ADJACENT TO TURF.
8.PLANTING DESIGN SHOULD MINIMIZE COMPACTION OF BIORETENTION SOIL MIX THROUGH PLANNED MAINTENANCE ACCESS.
ANNUAL PLANTS REQUIRING SOIL DISTURBANCE FOR HARVESTING (E.G., CARROTS) OR ANNUAL REPLANTING ARE NOT
PERMITTED.
9.SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS.
6" MIN.
1.5
1
SIDE SLOPE AT
TREE, SEE NOTE 1
BIORETENTION PLANTING -
SECTION VIEW
STD. PLAN - 262.50
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