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.
Gauge Information
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 Show More Historical Crests
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
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.
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NWS Information
National Weather Service
Northern Indiana Weather Forecast Office
7506 E 850 N
Syracuse, IN 46567
(574) 834-1104 Ask Questions/Webmaster
Page last modified: 12-Apr-2013 12:58 AM
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.
