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The City's Natural Resource Inventory (NRI) builds on Metro’s inventory, adopted in 2005 with Title 13 of the Urban Growth Management Functional Plan. Both the City's and Metro's inventories focus on riparian corridors and wildlife habitat. Riparian corridors include rivers, streams, flood areas, wetlands and the lands adjacent to these water bodies. The regional Title 13 inventory reflects extensive review and input from independent scientists and the public. The City has vetted the updated inventory methodology through specific projects (e.g., Airport Futures) and through the Portland Plan.
This report documents the approach used to update the City's natural resource inventory, including scientific foundation, methodology, updated fish and wildlife species lists, and technical review process. June 2012.
This document provides an overview of the City's updated Natural Resource Inventory, including project context, steps to produce the inventory, results, and uses. Fall 2010.