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Hydrograph River at a Glance Download
Maumee River at Grand Rapids Stage (ft)Flow (kcfs)Highest Observation: 3.17 ft at 7:00AM Oct 20, 2014GRRO1(plotting HGIRZ) Graph Created (8:31AM Oct 22, 2014)ObservedLatest observed value: 3.17 ft at 7:00 AM EDT 20-Oct-2014. Flood Stage is 15 ft
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NOTE: Forecasts for the Maumee River at Grand Rapids are issued as needed during times of high water, but are not routinely available.
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Upstream Gauge - at Napoleon Upstream Gauge Downstream Gauge Downstream Gauge - at Waterville
Flood Categories (in feet)
Major Flood Stage:20
Moderate Flood Stage:16.5
Flood Stage:15
Action Stage:11

Historical Crests
(1) 25.00 ft on 03/07/1904
(2) 23.50 ft on 03/26/1913
(3) 22.75 ft on 03/14/1982
(4) 22.75 ft on 02/12/1959
(5) 22.75 ft on 03/05/1979
(6) 20.81 ft on 03/15/1982
(7) 19.96 ft on 03/23/1978
(8) 19.67 ft on 12/31/1985
(9) 19.50 ft on 03/11/2009
(10) 19.33 ft on 02/08/2008
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(P): Preliminary values subject to further review.

Low Water Records

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:16
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Disclaimer
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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If you notice any errors in the below information, please contact our Webmaster
20 500 YEAR FLOOD LEVEL. MAJOR FLOODING TO URBAN AND AGRICULTURAL AREAS WITH WIDESPREAD DAMAGE TO PUBLIC FACILITIES AND PRIVATE PROPERTY. THE DOWNTOWN BUSINESS DISTRICT INUNDATED.
19 FLOODWATERS REACH BUILDINGS ALONG THE GRAND RAPIDS BUSINESS DISTRICT WATER THREATENS 2ND STREET.
18.5 100 YEAR FLOOD LEVEL.
18 WATER STARTS TO COVER FRONT STREET JUST WEST OF THE GRAND RAPIDS BUSINESS DISTRICT OVER PORTIONS OF BEAVER, WEST, AND MILL STREETS. CAMPGROUNDS ALONG THE RIVER ARE UNDER WATER.
16.5 THURSTON STATE PARK FLOODED. LOW LYING LAND NEAR GRAND RAPIDS FLOODS.
15 LOWLAND FLOODING NEAR THE TOWN OF GRAND RAPIDS AND SECONDARY ROADS.
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Latitude: 41.416667° N, Longitude: 83.866667° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 15 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 625.54 ft 640.54 ft  
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NWS Information
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Cleveland Weather Forecast Office
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Cleveland, OH 44135
(216) 265-2370
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Page last modified: 5-Aug-2014 6:39 PM
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