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Blanchard River at Ottawa, OH (OTTO1)


Data Type




Inundation Levels
NAVD88 Stage

Record Crest: 33.3 ft
729.8 31.4
728.4 30.0

Major Flooding Begins

727.4 29.0
726.4 28.0
725.4 27.0

Moderate Flooding Begins

724.4 26.0
723.4 25.0
722.4 24.0
721.4 23.0

Minor Flooding Begins

720.4 22.0
719.4 21.0
718.4 20.0
* = Extended rating
Weather Forecast Office Northern Indiana, IN Ohio River Forecast Center

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Current Stage:
5.4 ft at 07/25/2014 13:30:00 UTC
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Inundation Legend Inundation Legend
USGS Gauge Location Gauge Location

Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.

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Flood Categories (in feet)
Major Flood Stage:30
Moderate Flood Stage:27
Flood Stage:23
Action Stage:20

Historical Crests
(1) 33.30 ft on 03/13/1913
(2) 31.40 ft on 08/23/2007
(3) 29.75 ft on 06/15/1981
(4) 29.72 ft on 02/11/1959
(5) 29.29 ft on 02/07/2008
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(P): Preliminary values subject to further review.

Low Water Records
(1) -2.37 ft on 01/15/1979
(2) -1.50 ft on 02/19/1980
(3) 4.63 ft on 06/29/2012

Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.

Site-specific information:
These inundation maps for the Blanchard River at Ottawa were developed by the Indiana USGS, and made available on this site through funding by the Village of Ottawa and the National Weather Service.

Flood Impacts Collapse
If you notice any errors in the below information, please contact our Webmaster
29 Widespread major flooding occurs throughout downtown Ottawa.
27 Flooding worsens on the south side of Ottawa, with water on several roads. Flooding also begins in other areas of Ottawa.
26.6 Flood water begins to hit the bottom of the bridge at the gage site.
25 Flooding begins along south Walnut and west Second Streets on the south side of Ottawa.
23 Lowland flooding occurs mainly in south Ottawa. Flood water also gets into low farmlands.
Photos
(1) Upstream view from gauge site
(2) Downstream view from gauge site
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Page last modified: 16-Jul-2014 2:12 AM
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Graphical representation of flood inundation for NWS flood categories are based on steady state hydraulic modeling of water surface elevations for incremented discharges. Map shows approximate inundation areas for given water surface elevations and should not be used for navigation or permitting or other legal purposes, but strictly as a planning reference tool.