100 Year Floodplain

100 Year Floodplain - pagecurl

The 100 Year Floodplain map depicts the FEMA 100-year flood zone boundary (2008 version), which is the area with a 1-% annual chance of flooding, as well as the extent of the inundation area from 1996 flood.

By clicking on the following link, you acknowledge that you have read the disclaimer below and agree to its terms.

View the 100 Year Floodplain map (PDF).

Visit the Flood Information page for more information on flooding hazards within Oregon City.


The City of Oregon City makes no representations, express or implied, as to the accuracy, completeness and timeliness of the information displayed. This map is not suitable for legal, engineering, or surveying purposes.

The City of Oregon City includes the 1996 flood inundation line in its floodplain determination. This digital version is currently NOT official with or accepted by the Federal Emergency Management Agency (FEMA) or any other jurisdiction, department, entity, business, or individual.