Active USGS

Ottawa River At University Of Toledo, Toledo Oh

Updated August 2, 2026 at 08:30:00 AM · Provisional · Site 04177000

Current conditions

Historical trends

Hourly measurements

Detailed readings by hour, organized by day

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Official USGS page: https://waterdata.usgs.gov/monitoring-location/USGS-04177000/ (may include cooperator information)