New Eastern Washington LID Guidance Manual Now Available

AHBL co-authored the Manual

Stormwater managers and site designers now have a new set of tools when it comes to land development! The release of the Eastern Washington Low Impact Development Guidance Manual (LID Manual) provides technical guidance for the design and sizing of LID practices to meet the Department of Ecology's 2004 Stormwater Management Manual for Eastern Washington. The LID Manual establishes goals, objectives, and design criteria for individual LID practices to achieve the flow reduction and water quality treatment standards for eastern Washington. The LID Manual is your guide to understanding the broad array of LID techniques so you can find a solution that meets your needs, budget, and environmental goals.


The LID Manual is a collaborative product of Spokane County, the Washington State Department of Ecology, the Washington Stormwater Center, Washington State University, the Eastern Washington Phase II Municipal Stormwater Permittees, AHBL, and HDR. You can download a copy of the LID Manual by clicking here

For a limited time, AHBL is also offering brownbags as a continuation of the three-day training we provided in Richland, Wenatchee, and Spokane. To schedule this free training, contact Wayne Carlson at (509) 252-5019 or wecarlson@ahbl.com.


AHBL's work on the LID Manual builds upon our ongoing library of work in the field of LID technical assistance and policy development. Click the links below to view and download some of our recently published work.

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