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Service Description: The Washington State Shoreline Management Act (SMA) and administrative codes require that communities identify the general location of channel migration zones (CMZs) and regulate development within these areas on shoreline streams (WAC 173-26-201(3) (c) (vii)). Shoreline streams are defined as those with a mean annual flow equal or greater than 20 cfs. The Washington Department of Ecology (Ecology) developed a planning-level CMZ delineation (pCMZ) method to support local communities’ updates and implementation of the SMA requirements. The method was used by Ecology to map CMZs for shoreline communities.
Shoreline Master Program Ord. 972
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Description: The Washington State Shoreline Management Act (SMA) and administrative codes require that communities identify the general location of channel migration zones (CMZs) and regulate development within these areas on shoreline streams (WAC 173-26-201(3) (c) (vii)). Shoreline streams are defined as those with a mean annual flow equal or greater than 20 cfs. The Washington Department of Ecology (Ecology) developed a planning-level CMZ delineation (pCMZ) method to support local communities’ updates and implementation of the SMA requirements. The method was used by Ecology to map CMZs for shoreline communities.
8ec23f80225147d99c94bfe397bc6b67
Copyright Text: Washington Department of EcologyGeoEngineersNatural Systems Design
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Title: J:\WEB_MAPS\ARCPRO\CriticalAreas_GroupService\CriticalAreas_GroupService.aprx
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Keywords: channel migration maps,Shoreline Master Programs,flood hazard reduction,Clallam County,WRIA 20
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