information
Microsoft CrowdStrike technology outage

Some City of Portland systems were impacted. Call 3-1-1 or 503-823-4000 with questions or non-emergency reports. Beware of cyber criminals impersonating CrowdStrike or other tech support. Information for City of Portland employees

Flooding in Portland

Program
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.
Photo shows a neighborhood street and a mailbox surrounded by water.

Contact

Contact

Floodplain Remapping

floodinfo@portlandoregon.govFor questions regarding floodplain remapping and insurance

Construction and Development in a Floodplain

Bureau of Development Services
phone number503-823-7300For questions regarding zoning, regulations, and building codes that limit where and how development can occur in a floodplain or natural area