Find information on rivers in Thurston County. Observed and predicted flow graphs, as well as information and historical data.
Dashboard View of gages monitored by the Advanced Hydrological Prediction Service (NWS AHPS)
Dashboard View of gages monitored by the NWS Northwest River Forecasting Center
USGS Listing of Washington Rivers
Information on sandbagging, including guidance for placing, estimating quantity and availability of sandbags in the Thurston County.
Click here for more information.
The Environmental Monitoring Program monitors the condition of water resources in the county. The program collects data from various sources to help residents prepare for floods and other natural disasters.
Click here for more information
FloodBulletin2021_Final.pdf
A tool for property owners to request a Leter of map amendment (LOMA), if they think their property has been inadvertently mapped in a Special Flood Hazard Area.
This Thurston County Public Health link provides information on flood-related health issues and cleanup guidelines, as well as other information that can be useful when flooding occurs.
Winter 2011 Groundwater Flooding Information (pdf)
Fall 2015 Thurston County Flood Bulletin (pdf)