Other Information: Springwater Trail Regional Watersheds Map History of Floodplain Management in Johnson Creek WatershedAuthored by: Rebecca Dorff – rebdorff@pdx.edu; Created 3/8/2021Suggested Citation: Dorff, R. (2021, March 8). The History of Floodplain Management in Johnson Creek Watershed. ArcGIS Story Maps. https://arcg.is/1WraDb1