Oregon Moves to Function and Value Approach to Wetland Mitigation but Approaches Fall Short in Capturing Biodiversity Values

Oregon’s Department of State Lands has developed a new revised rule, effective April 1, 2019, which move toward functions- and values-based mitigation.  Part of the approach list the Stream Function Assessment Method, however, the method depicted falls way short of the same application used by the Habitat Institute.  The Institute actually applied the Stream Function Assessment as part of the CHAP in early 2015.  This combined approached was used to assess baseline conditions at Aliso-Wood Canyon Creeks Ecosystem Restoration and alternative scenarios developed by the Corps of Engineers.

The other approach, Oregon Rapid Wetland Assessment Protocols, similarly falls short in capturing a sites potential biodiversity.