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Muskingum River at McConnelsville Old Lock 7, OH (MCCO1)

Data Type




Inundation Levels
NAVD88 Stage

Record Crest: 33.5 ft
669.620.0
668.619.0
667.618.0
666.617.0
665.616.0
664.615.0
Major Flooding Begins

663.614.0
662.613.0
Moderate Flooding Begins

661.612.0
Minor Flooding Begins

660.611.0
659.610.0
Near Flooding Begins

658.69.0
Below Flooding Begins

* = Extended rating
Weather Forecast Office Charleston, WV Ohio River Forecast Center
Hydrograph River at a Glance Download Inundation
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Click on mapped inundation to see water depth values for that location, or hold shift and drag to zoom to area.

Current Stage:
9.7 ft at 04/01/2020 06:00:00 UTC
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Inundation Legend
Depth in feet
USGS Gauge Location Gauge Location
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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.

Gauge Information Collapse

Map Overlays
Flood Categories (in feet)
Major Flood Stage: 14
Moderate Flood Stage: 12
Flood Stage: 11
Action Stage: 9
Low Stage (in feet): 0

Historic Crests
(1) 33.50 ft on 03/27/1913
(2) 21.14 ft on 01/26/1937
(3) 17.00 ft on 09/09/1935
(4) 14.52 ft on 01/28/1952
(5) 14.38 ft on 01/23/1959
(6) 13.78 ft on 03/10/1964
(7) 13.77 ft on 01/12/2005
(8) 13.50 ft on 03/07/1945
(9) 13.45 ft on 01/06/2005
(10) 12.77 ft on 08/12/1980
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.07 ft on 02/13/2019
(2) 11.51 ft on 02/08/2019
(3) 10.14 ft on 04/25/2018
(4) 11.02 ft on 04/04/2018
(5) 11.16 ft on 02/16/2018
(6) 11.15 ft on 04/10/2015
(7) 10.48 ft on 03/14/2015
(8) 10.37 ft on 03/30/2014
(9) 10.17 ft on 01/27/2012
(10) 10.80 ft on 03/06/2011
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -0.65 ft on 08/25/1930
(2) 1.36 ft on 10/22/1971
(3) 1.40 ft on 07/22/1999

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.
Flood Impacts Collapse
If you notice any errors in the below information, please contact our Webmaster
14 Major flooding occurs in and around McConnelsville.
13 Several homes and businesses start to flood in and around McConnelsville.
12 Many areas are flooded in and around McConnelsville.
11.6 Most primary roads flooded in and between McConnelsville and Zanesville; several cottage-type homes are affected.
11.5 Flooding starts in cemetery on the southwest side of McConnelsville near State Route 376. More homes start to flood near the river.
11 Route 669 above Malta and other roads are flooded.
10.6 Several low-lying areas and poor drainage areas along Route 669 start to flood.
Other Data Sources Collapse
Additional Information Collapse
< Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.
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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.