Rapp & Abbe 2003 channel migration zone

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Rapp, C.F. & T.B. Abbe. 2003. A framework for delineating channel migration zones. Ecology Final Draft Publication #03-06-027. Washington State Departments of Ecology and Transportation.

Notes

  • (From Introduction) The principal goal of delineating the Channel Migration Zone (CMZ)—the area where a stream or river is susceptible to channel erosion—is to predict areas at risk for future channel erosion due to fluvial processes. CMZ delineations help reduce risks to human communities by guiding development in and along river systems away from such areas. Limiting development within CMZs also reduces the costs of repairing or replacing infrastructure and major civil works that might otherwise be threatened or damaged by channel migration. Additionally, CMZ delineations can provide guidance in reducing degradation and loss of critical aquatic and riparian habitats, helping assure that fluvial process are accommodated and that the river landscape is not permanently degraded or disconnected from the river by development.