Action Stage
932 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
957 ft
Top of Dam.
947 ft
Spillway Crest.
945.4 ft
Record Pool, set in January 2005.
936 ft
Park closed, all areas evacuated
934 ft
State Route 229 is flooded in both directions between U.S. 23 and Horseshoe Road
924 ft
Gearhiser Road in Marion County is impassable.
915 ft
Summer Pool.
910 ft
Winter Pool.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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About This Gauge
USGS Site
NWS LID
DLWO1
River
Olentangy River
County
Delaware, OH
Coordinates
40.3586°N, 83.0694°W
Get Flood Alerts for Olentangy River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Olentangy River at Delaware Lake?
The Olentangy River at Delaware Lake gauge is maintained by USGS (site 03225000) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Olentangy River at Delaware Lake?
This gauge has NWS-defined flood categories. Check the flood stages section above for current thresholds.
How do I get alerts when Olentangy River rises?
Download StormCast free on Google Play, go to River Gauges, and add Olentangy River at Delaware Lake to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Olentangy River at Delaware Lake gauge located?
The gauge is located in Delaware County, Ohio at coordinates 40.3586°N, 83.0694°W. USGS site number: 03225000. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Olentangy River
On This River
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey, Observations courtesy of U.S. Army Corps of Engineers
- </br></br><a href='https://www.lrh-wc.usace.army.mil/wm/?basin/sci/ddo'><font color='blue' size='3'>Click here for US Army Corps Delaware Lake Info, Including pool forecasts from USACE</font></a>
- Due to the potential threat of storm surge traveling upstream through the river from the coast, refer to storm surge watches and warnings issued by the National Hurricane Center for this location. Once the threat of storm surge flooding has passed, official river forecasts will resume for this location.