State · United States · USGS · BOR · USACE · CDEC
Ohio
49.9% average fill
Measured
28
Data pending
1
Volume stored
892 hm³
Measured capacity
1,789 hm³
Critical
4
Low level
1
Below month average
16 of 20
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Drought Monitor · 27 October 2026
Weekly map · area in each categoryDrought status
0.0%
of the area in drought (D1 or worse)
Worst category: D0 abnormally dry
unchanged on the week
Severe or worse (D2+)
0.0%
Extreme or worse (D3+)
0.0%
DSCI
140–500
Reservoirs (reservoirs.earth)
49.9% full28 tracked
Reservoirs on drought ground
0 of 29
As of the 27 October 2026 U.S. Drought Monitor map, 0.0% of Ohio was in drought (D1 or worse). The 28 reservoirs we track in Ohio were 49.9% full on their latest readings. 0 of 29 tracked reservoir sites sit inside the drought area.
The Drought Monitor maps where conditions are dry this week — rainfall, soil moisture, streamflow — not how much water is stored. Reservoir storage lags it by months, so a region can be in drought with full reservoirs, or out of drought with empty ones. Source: droughtmonitor.unl.edu. The U.S. Drought Monitor is jointly produced by the National Drought Mitigation Center at the University of Nebraska-Lincoln, the United States Department of Agriculture, the National Oceanic and Atmospheric Administration and the National Aeronautics and Space Administration. Map courtesy of NDMC.
Reservoirs
Sorted by capacityMohawk
criticalUpdated 2026-10-29· 100% of month avg
Bolivar Lake
criticalUpdated 2026-10-29· 100% of month avg· D0
Mohicanville Dam
criticalUpdated 2026-10-29· 100% of month avg
Caesar Creek Lake
Updated 2026-10-29· 99% of month avg
William H. Harsha Lake
Updated 2026-10-29· 98% of month avg· D0
Mosquito Creek Lake
Updated 2026-10-29· 98% of month avg· D0
Alum Creek Lake
Updated 2026-10-29· 96% of month avg
Beach City Lake
criticalUpdated 2026-10-29· 92% of month avg· D0
Berlin Lake
Updated 2026-10-29· 86% of month avg
Michael J Kirwan Reservoir
Updated 2026-10-29· 96% of month avg· D0
Senecaville Lake
Updated 2026-10-29· 100% of month avg
C. J. Brown Dam and Reservoir
Updated 2026-10-29· 97% of month avg
Tappan Lake
Updated 2026-10-29· 99% of month avg
Piedmont Lake
Updated 2026-10-29· 99% of month avg
Clendening Lake
Updated 2026-10-29
Atwood Lake
Updated 2026-10-29· 99% of month avg· D0
Lake Milton
Updated 2026-10-29· 85% of month avg
Deer Creek Lake
Updated 2026-10-29· 82% of month avg
Paint Creek Lake
Updated 2026-10-29
Leesville Lake
Updated 2026-10-29· 98% of month avg
Dillon Lake
Updated 2026-10-29
Delaware Lake
Updated 2026-10-29
Pleasant Hill Lake
Updated 2026-10-29
Wills Creek Lake
Updated 2026-10-29· 91% of month avg
Tom Jenkins Lake
Updated 2026-10-29
Charles Mill Lake
Updated 2026-10-29
West Fork of Mill Creek Lake
lowUpdated 2026-10-29· 97% of month avg
North Br Kokosing River Lake
Updated 2026-10-29
Storage from official US gauges (USGS, USACE, Bureau of Reclamation, CDEC) and, in Texas, the Texas Water Development Board. Fill % uses design capacity from the National Inventory of Dams where available; Water Data for Texas lakes use that board's conservation capacity; a few sites without a match fall back to the 5-year maximum. "% of month avg" compares the current fill with the reservoir’s own average for this calendar month over its readings on record. D0–D4 is the U.S. Drought Monitor category of the ground at the reservoir’s coordinates on the latest weekly map — local conditions, not storage.
Major reservoirs — data pending
JE Roush Lake — data sourcing in progress
Storage is monitored by the US Army Corps of Engineers (USACE CWMS), but the live feed is currently stale — we are working to restore it. Known capacities: JE Roush Lake (0.2 km³).
About reservoirs in Ohio
As of October 29, 2026, the reservoirs we track across Ohio that report live levels hold roughly 892 hm³ of water — about 49.9% of their combined capacity. Taken together, Ohio's reservoirs are within their normal operating range.
Across the region, 4 reservoirs are at critically low levels and 1 is low. North Br Kokosing River Lake is the fullest at 104.7%, while Mohicanville Dam is the lowest at 0.1%.
Over the most recent week on record, 8 reservoirs fell across Ohio.
Storage figures for Ohio come from USGS · USACE · BOR · CDEC; the most recent reading is from October 29, 2026. Each reservoir below links to its own page with full history and seasonal context.
Ohio at a glance
- Reservoirs tracked
- 28
- Average fill
- 49.9%
- Water stored
- 892 hm³
- Combined capacity
- 1,789 hm³
- At critically low levels
- 4
- Fullest
- North Br Kokosing River Lake (104.7%)
- Lowest
- Mohicanville Dam (0.1%)
- Last updated
- October 29, 2026