



NOAA Fisheries developed this guidance to communicate the importance of considering climate, hydrologic, geomorphic and biologic processes before designing fish passage facilities.
Prior to designing a fish passage facility, NOAA Fisheries recommends the project proponent familiarize themselves with the NOAA Fisheries WCR Guidance to Improve the Resilience of Fish Passage Facilities to Climate Change (Improving Resilience) guidance document. The Improving Resilience document outlines how to incorporate projected future flows the facility may experience over the life of the project and should be the starting point for the design Process.
In 2013, the Northwest and Southwest regions of the National Oceanic and Atmospheric Administration’s (NOAA) Fisheries merged to form the West Coast Region. The NOAA Fisheries West Coast Region Anadromous Salmonid Passage Design Manual is the first step in integrating fish passage design criteria and guidelines of the two former regions into one document and it supersedes the following documents: