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Blanchard River at Findlay, OH (FDYO1)


Data Type




Inundation Levels
NAVD88 Stage

Record Crest: 18.5 ft
772.2 18.4
771.8 18.0
770.8 17.0
770.3 16.5
769.8 16.0
769.3 15.5
768.8 15.0
767.8 14.0

Major Flooding Begins

766.8 13.0
765.8 12.0

Moderate Flooding Begins

764.8 11.0

Minor Flooding Begins

763.8 10.0
762.8 9.0
761.8 8.0
* = Extended rating
Weather Forecast Office Cleveland, OH Ohio River Forecast Center

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Current Stage:
0.8 ft at 10/25/2014 20:00:00 UTC
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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:13.5
Moderate Flood Stage:12
Flood Stage:11
Action Stage:8

Historical Crests
(1) 18.50 ft on 03/13/1913
(2) 18.46 ft on 08/22/2007
(3) 17.43 ft on 06/14/1981
(4) 16.76 ft on 02/11/1959
(5) 16.50 ft on 02/07/2008
(6) 16.42 ft on 03/01/2011
(7) 16.10 ft on 01/22/1959
(8) 15.58 ft on 12/22/2013
(9) 15.42 ft on 06/02/1997
(10) 15.41 ft on 03/09/2009
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(P): Preliminary values subject to further review.

Low Water Records
(1) 0.60 ft on 09/12/1976
(2) 0.68 ft on 10/17/1965
(3) 0.74 ft on 09/18/1968
(4) 0.80 ft on 09/21/1980

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:
Blanchard River at Findlay Disclaimer: Flood boundaries shown reflect unobstructed flooding or backwater from only the Blanchard River. Additional areas may be flooded if the river becomes obstructed or as a result of flooding from tributary streams. Residents living near tributaries of the Blanchard River should be particularly cautious due to added uncertainty associated with the potential for flooding from multiple sources.

Extended rating:
Rating Curve Extension - The Rating Curve Extension is calculated by using either a linear, logarithmic, or hydraulic technique to extend the rating curve above the currently established relationship between stage and flow.

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19.5 RECORD FLOODING. TOP OF GAGE WELL HOUSE.
18.5 HIGH WATER MARK OF 1913 AND 2007.
17.5 Major flooding will occur in downtown Findlay. Flooding can be expected from Westerfield Drive to County Road 236 along the Blanchard River. Flooding can also be expected along Eagle and Lye Creeks between State Route 15 and the Blanchard River. ABOUT THREE QUARTERS OF THE CITY INUNDATED.
17 500 YEAR FLOOD LEVEL. MAJOR FLOODING IN FINDLAY.
16 100 YEAR FLOOD LEVEL. WIDESPREAD EVACUATIONS NEEDED IN THE CITY OF FINDLAY. THE HIGHWAYS THAT ARE IMPACTED INCLUDE U.S. 68 ON THE SOUTH SIDE.
15 Several businesses will be impacted downtown... with many roads near the river closed. County Road 236 to State Route 568 will be inundated. The following streets are likely to be flooded...Main Cross Street from Western to Township Road 180... Broad Street...Streets along Eagle Creek from Central to Rockside and streets along Lye Creek from Wedgewood to Strong Avenue.
14.5 MAJOR FLOODING. THE CITY IS SPLIT IN HALF BY FLOOD WATERS INHIBITING TRAVEL IN AND OUT OF THE CITY.
14 MAJOR FLOODING. AS MUCH AS HALF THE TOWN INUNDATED WITH FLOOD WATERS. SEVERAL HOMES AND BUSINESSES IMPACTED.
13.5 MAJOR FLOODING BLOCKING MARTIN LUTHER KING PARKWAY AND BLANCHARD AVENUE. SEVERAL OTHER LOW LYING ROADS FLOODED ALONG THE RIVER. TRAVEL IN AND OUT OF THE CITY BECOMES DIFFICULT.
13 FLOODWATERS IMPACT EAST SANDUSKY STREET...MAIN CROSS STREET...BLANCHARD ROAD...CLINTON COURT...AND MANY OTHER STREETS NEAR THE BLANCHARD RIVER. BACKWATER WILL AFFECT RESIDENTS LIVING ALONG EAGLE AND LYE CREEKS.
12 Water impacts River Street and Apple Alley on the west side of Findlay...Blanchard Street between Sandusky and Main Cross...and several streets south of Clinton Court near Riverside Park.
11 Flooding impacts areas near Riverside Park and East Main Cross Street in the city of Findlay.
10 Water reaches East Main Cross Street near Lye Creek.
9 Flooding occurs on low lying roads along the river west of Findlay... including County Road 140.
8 Water covers low lying portions of South River Road and Howard Street on the west side of Findlay.
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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.