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Kitsap LID Resources

Listed below are a number of documents and websites that contain a vast array of information on Low Impact Development (LID) techniques. Please check back again for more resources as this page is still under construction.

Summer 2010 National Association of Home Builders Land Development Magazine Article

Kitsap County LID Implementation - Projects by Jurisdiction
GIS Map of Kitsap Low Impact Development Projects and Details.

Spreadsheet Modeling Tool (new updated version 8-6-10)

LID BMP SIZING CALCULATOR FOR KITSAP COUNTY (729Kb Excel Spreadsheet) This spreadsheet tool guides the user through selecting and sizing pre-designed stormwater management best management practices (BMPs) in Kitsap County, Washington. The 8-6-10 version provides a ”Project Information” box at the top of the sheets and has added some clarification on the minimum aggregate depth for permeable pavement surfaces.

STORMWATER BEST MANAGEMENT PRACTICE SIMPLIFIED SIZING TOOL (880kB PDF file) This report, in pdf format, presents a description of the stormwater BMPs included, the infiltration rates evaluated, the stormwater management standards used, the modeling and regression analysis methods employed, and the resulting County-wide BMP sizing equations.

Design Guides

RAINWATER HARVESTING EXCEL SPREADSHEET FROM DOE (Calculating Rainwater Harvesting for your project)

The Rainwater Harvesting Spreadsheet on DOE's website

Article about the Kitsap LID Grant Process

LOW IMPACT DEVELOPMENT (LID) GUIDANCE MANAUL — A Practical Guide to LID Implementation in Kitsap County. (version 1.21 July 1, 2009) [pdf 374 pages, 8.1 mb] (Version 1.21 include the 07/01/2009 Errata sheet changes in files below). The Manual is designed to assist real estate developers, community, landscape and road designers seeking to implement Low Impact Development (LID) in land development projects in Kitsap County. This is the final draft approved by the Department of Ecology.

LOW IMPACT DEVELOPMENT (LID) GUIDANCE MANUAL - ERRATA SHEET CHANGES (for Manual Version 1.2 dated June 10, 2009). Note: This errata data in included in the Version 1.21 Manual file above.

LOW IMPACT DEVELOPMENT (LID) GUIDANCE MANUAL (Original v1.2 dated 6/10/09 - Prior to Errate Sheet Changes of 7/1/09 for v1.21)

Prescriptive BMP Spreadsheet (104 kb) This spreadsheet can be used to determine the sizing of LID BMP's based on the pre-calculated Herrera data in the Kitsap Manual.

Deprtment of Ecology Final Review Letter on Low Impact Development (LID) Guidance Manual - A Practical Guide to LID implementation in Kitsap County [pdf 1 pg] (June 2, 2009)

Kitsap Low Impact Development Standards Grant - Final Report Narrative (2.8 mb)

Low Impact Development Technical Guidance Manual for Puget Sound (January 2005) [pdf - 5.08 mb] — This design manual from the Puget Sound Partnership (formerly Puget Sound Action Team) and the Washington State University Pierce County Extension is a resource that was heavily drawn on to develop the Kitsap LID Design Guidelines.

Poplars Rain Garden Project Video- The Kitsap County Consolidated Housing Authority and the Kitsap County Health District through a grant from the Wa Dept of Ecology retrofitted this Silverdale parking lot with rain gardens.

General Stormwater

Using Smart Growth Techniques as Stormwater Best Management Practices (USEPA 231-B-05-002) [pdf 112 pgs - 1.61 mb] - This document discusses the stormwater benefits of smart growth techniques.

Stormwater Management Manual for Western Washington (Washington Dept. of Ecology Publication Numbers 05-10-029 through 05-10-033) [pdf 218 pgs - 3.52 mb] - Provides technical guidance to control stormwater from development and redevelopment in Western Washington.

Portland Bureau of Environmental Services 2004 and 2008 Stormwater Management Manuals (Link to -Provides technical guidance to control stormwater in Portland, Oregon.

Social and Institutional Barriers to Stormwater Infiltration (David Nowacek, July 2003) [pdf 61 pgs - 340 kb] - A discussion of barriers, including outdated technical knowledge and regulations, lack of cohesive stormwater plan execution between plat developers and builders for each parcel, costs, as well as barriers related to homeowners.

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