Tappan Lake Water Level
Ohio · Little Stillwater Creek
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Water level history
About Tappan Lake
Tappan Lake is a reservoir on the Little Stillwater Creek in Ohio, operated by U.S. Army Corps of Engineers. Its full summer pool sits at 899.3 ft above sea level. Live water levels come from the U.S. Army Corps of Engineers (CWMS) and update hourly.
Understanding Tappan Lake's water level
"Full pool" is the elevation U.S. Army Corps of Engineers targets when Tappan Lake is completely filled — 899.3 feet above sea level. Above that line the Corps deliberately keeps empty "flood storage" to absorb heavy rain, so the lake rarely sits far above 899.3 ft for long. A reading a few feet under full is usually just the normal operating band rather than a sign of drought.
In a normal year Tappan Lake sits highest through the summer recreation season and lower over winter, when the Corps makes room for storms. Extended dry spells in late summer and fall are what usually pull the lake noticeably below full pool.
The recent high and low above are drawn from the published history available for Tappan Lake, so they show how today compares over that record rather than an all-time extreme. The 12-month and 5-year chart views make the trend and the lake's usual seasonal shape easy to see.
Tappan Lake — frequently asked
What is the current water level of Tappan Lake?
The gauge at the top of this page shows Tappan Lake's current elevation in feet above sea level, updated from the U.S. Army Corps of Engineers (CWMS).
What is full pool for Tappan Lake?
Tappan Lake's full summer pool is 899.3 feet above sea level. Levels are typically drawn down below that in winter for flood storage.
Who manages Tappan Lake?
Tappan Lake is operated by U.S. Army Corps of Engineers on the Little Stillwater Creek.
Where is Tappan Lake located?
Tappan Lake is in Ohio, on the Little Stillwater Creek.
Why is Tappan Lake low right now?
Reservoir levels fall during dry spells and seasonal drawdown — when U.S. Army Corps of Engineers lowers the pool for flood storage, power, or water supply — and recover after rain and snowmelt. The history chart above shows the recent trend.
What are the record high and low levels for Tappan Lake?
The recent record high and low elevations are shown in the stats on this page, computed from the available published history for Tappan Lake.
Other lakes near Tappan Lake
- Tom Jenkins Lake (Burr Oak)OH
- Senecaville LakeOH
- Wills Creek LakeOH
- Pleasant Hill LakeOH
- Alum Creek LakeOH
- Piedmont LakeOH
See current levels for all 16 Ohio lakes and reservoirs →
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