Flooding in Portland
Portland’s location on the Columbia and Willamette rivers and the many waterways within the city mean that flooding can happen here. Find out how to prepare and be safe, where Portland’s floodplains are, and what the City is doing for flood prevention.
Construction and Development in a FloodplainBureau of Development Services
503-823-7300For questions regarding zoning, regulations, and building codes that limit where and how development can occur in a floodplain or natural area