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07/26/2000 Env Bd Packet
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07/26/2000 Env Bd Packet
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Environmental Board
Env Bd Document Type
Env Bd Packet
Meeting Date
07/26/2000
Env Bd Meeting Type
Regular
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The minimum street width should be selected that <br />will reasonably meet the needs of the service area. <br />Recommended street widths for residential areas <br />are: <br />Width (ft) Dm. Ave Daily Traffic <br />22 -24 Access streets 0-250 <br />26 Subcollectors 250-1,000 <br />36 Collector 1,000 -3,000 <br />SOURCE: American Society of Civil Engineers, <br />National Association of Home Builders, Urban <br />Land Institute <br />• Cul-de -Sac turnarounds <br />hammerheads need only be as large as <br />necessary for emergency vehicles to turn <br />around. <br />and <br />Using a 30 -foot diameter . turnaround <br />will reduce impervious surfaces by <br />44% compared to a 40 -foot diameter <br />turnaround. <br />Large turnarounds can be landscaped <br />in the center to reduce impervious area . <br />by up to 12%. <br />The goal of •redefining ordinances and <br />standards is to encourage the construction of <br />only as much impervious surface. as necessary <br />to provide for both public safety and services. <br />ADDITIONAL INFORMATIONAND SUGGESTED <br />READINGS <br />Stormwater Infiltration Guidance. 1998. Rice <br />Creek Watershed District. <br />Better Site Design: A Handbook for Changing <br />Development Rules in Your Community. <br />1998. Center for Watershed Protection. <br />Environmental Land Planning Series: Site <br />Planning for Urban Stream Protection. 1995. <br />T. Schueler. Metropolitan Washington <br />Council of Governments and the Center for <br />Watershed Protection, CWP Publication No. <br />95708. <br />Residential . Streets, 2"a Edition. 1990. <br />American Society of Civil Engineers, National <br />Association of Home Builders, and the Urban <br />Land Institute. ULI Publication No. R07. <br />Impervious Surface Reduction Study. 1994. <br />City of Olympia Public Works Department <br />and the Washington State Department of <br />Ecology. <br />If you or your consultant want copies of these <br />materials, contact the District at 766 -4191. <br />The American Society of Civil Engineers, <br />National Homebuilders Association, and <br />American Association of State Highway and <br />Transportation Officials are all looking at <br />ways to make our communities livable and <br />pervious. <br />SUGGESTED NEXT STEPS... <br />1. Refer topic to planning commission, <br />subcommittee, or staff for discussion. <br />2. Attend the workshop sponsored by <br />RCWD and the Board of Water and Soil <br />Resources scheduled for March 8, 1999 <br />(more information to follow). <br />3. Invite District managers/staff to attend <br />meetings in your community to assist <br />with the process of reviewing your <br />ordinances and standards. <br />• <br />• <br />
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