Douglas County, NE Environmental Rules: Coastal Development (2026)

Nebraska is landlocked and Douglas County has no ocean coastal development to regulate. However, the county has significant water resources that are subject to waterway-adjacent development rules. The Missouri River forms the eastern county boundary; the Platte River lies just to the south; the Elkhorn River crosses the western county; and Papillion Creek and its branches (Big Papio, Little Papio, West Papio) drain most of the metropolitan area. Development near these waterways is regulated through several overlapping frameworks: (1) FEMA floodplain and floodway restrictions administered locally under Omaha Municipal Code Ch. 54 and Douglas County floodplain regulations — construction in the 100-year floodplain requires elevation and often specific floodproofing; (2) US Army Corps of Engineers Section 404 permits for fill or alteration of waters of the US, including wetlands; (3) Papio-Missouri River Natural Resources District (NRD) authority over stream-channel work and regional flood control; (4) NDEE water quality certifications under Section 401. Riparian buffer setbacks are addressed through local zoning and subdivision regulations, commonly 25 to 75 feet from the ordinary high water mark depending on waterway classification.