Olentangy River near Worthington

Last updated: Jul 20, 2025, 8:45 AM UTC

Flood Impacts 🅘

  • 18.5 - This would roughly equal the FEMA 500 year or 0.2 percent flood event. Significant flooding of homes on Plumtree and Edgecliff Drives in Mount Air occurs east of Route 315, with the Powell Waste Water Treatment Plant in southern Delaware County also flooded. Substantial flooding occurs along Rivers Edge Drive and Mount Air Place. Flooding would occur on The Ohio State campus, from along and north of Herrick Drive to Woody Hayes Drive, in areas west of Tuttle Park Place.
  • 18 - Widespread flooding occurs in sections of Worthington near the river, with homes flooded along Edgecliff and Plumtree Drives in Mount Air. Some flooding begins at the Powell Waste Water Treatment Plant.
  • 17 - This is above the FEMA 1 percent flood. Homes flood along Rosslyn and Kanawha Avenues and Tucker Drive in Worthington, with severe flooding along Edgecliff and Plumtree Drives in Mount Air, and along Olentangy River Road in Powell. Much of Olentangy Park and the bike trail are flooded. Flooding extends onto the back of properties along Masefield Street. The OhioHealth Primary Care facility also floods, with water also approaching the Powell Waste Water Treatment Plant. Whetstone High School may also flood.

Gauge Info

Coordinates 40.1103, -83.0319
RFC OHRFC
State OH
WFO ILN
County Franklin
Data Provider(s)
US Geological Survey USGS--Water Resources of the United States
USGS 03226800
COE Website

Gauge Location

Recent Crests

1. 13.57 ft on 05-19-2020 (P)
2. 10.37 ft on 07-03-2019
3. 9.62 ft on 11-19-2017
4. 12.41 ft on 06-23-2016
5. 7.49 ft on 06-26-2015

Historic Crests

1. 15.68 ft on 01-21-1959
2. 15.30 ft on 01-10-1952
3. 13.57 ft on 05-19-2020 (P)
4. 12.66 ft on 03-10-1964
5. 12.41 ft on 06-23-2016

Gauge Photos

No Images Found

Probability Information

Photo 1 of 2

Unique Local Info

Potential River Levels - Used to

Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 10 Day (NAEFS) River Forecast VS. River Potential
HEFS Ensemble NAEFS Ensemble Outlook vs. Forecast

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

See the Product Description Document link for more details on the interpretation of the 10 day graphics.

Click individual graphics to enlarge.

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

WFO Information

Weather Forecast Office
Wilmington
1901 South State Route 134
Wilmington, OH 45177
Official Homepage