Lake Conditions
Illustrated map of Grand Lake St Marys

Lake levels

Alum Creek Lake, OH

water level
888.00 ft
Condition
High for this time of year
7-day change
-0.32 ft
Below full
0.00 ft
30-day change
-0.67 ft

Reading as of 2026-10-13 | the U.S. Army Corps of Engineers

Since yesterday
-0.02 ft
7-day change
-0.32 ft
30-day change
-0.67 ft
Below full
0.00 ft
1-year change
+1.52 ft

In brief

Alum Creek Lake stood at 888.00 feet on Oct 13, 2026. That is higher than 86% of October readings since 2020.

Source: U.S. Army Corps of Engineers

Lake level timeline

887.8888.2888.5888.9889.2SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13FULL POOL 888.00 ftHIGH 889.08888.00 ft

Records and averages

Current level888.00 ft
Full pool (conservation) 888.00 ft
Flood pool 901.00 ft
Record high892.63 ft (2026-05-28)
Record low881.76 ft (2026-02-09)
Average of all readings886.92 ft
Data span6 years (2,250 readings)

Level schematic

881.3884.3887.2890.1893.1FULL POOL 888.00 ft888.00 ftPUBLISHED LOW 881.76 ft

Frequently asked questions

Is Alum Creek Lake full right now?

As of 2026-10-13, Alum Creek Lake sits at 888.00 ft, which is high for this time of year. That puts it right at full pool of 888.00 ft. Over the past 30 days the level has fallen 0.67 ft.

What is the water level at Alum Creek Lake today?

The most recent reading at Alum Creek Lake is 888.00 ft (2026-10-13), sourced from the U.S. Army Corps of Engineers. Readings on this page refresh automatically as the agency publishes new data.

What is the highest Alum Creek Lake has ever been?

The highest level for Alum Creek Lake in our records is 892.63 ft on 2026-05-28. The lowest is 881.76 ft on 2026-02-09. Our record covers about 6 years of readings.

Is Alum Creek Lake low for this time of year?

Compared with every October in our records, the current level is higher than 86% of them, which we classify as high for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.

Why is Alum Creek Lake low right now?

Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Alum Creek Lake has fallen 0.67 ft over the past 30 days. For the operational reason on any given week, check the U.S. Army Corps of Engineers directly.

How much has Alum Creek Lake changed over the past year?

Alum Creek Lake is +1.52 ft compared with this date last year (888.00 ft today). The full-history chart above covers 6 years, with a record high of 892.63 ft and a record low of 881.76 ft.

Download and cite

Quote this reading

Alum Creek Lake stood at 888.00 feet on Oct 13, 2026. That is higher than 86% of October readings since 2020.

From the U.S. Army Corps of Engineers, updated daily. The sentence changes with every new reading, so quote it with its date.

Download the full record

alum-creek-lake-oh-water-level-history.csv

2,250 readings, Aug 12, 2020 to Oct 13, 2026. Daily readings. Columns: date, water_level_ft. 42 KB.

How to cite

MyWaterLevel, “Alum Creek Lake water level, 2020 to 2026,” data from U.S. Army Corps of Engineers, https://mywaterlevel.com/lake/oh/alum-creek-lake/, accessed Oct 13, 2026.

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Source: the U.S. Army Corps of Engineers. All Ohio lake levels. Readings are provisional and may be revised. About our data and methods.