Lake Conditions
Illustrated map of Grand Lake St Marys

Lake levels

Bolivar Lake, OH

water level
897.81 ft
Condition
About average for this time of year
7-day change
-0.13 ft
Above full pool
2.81 ft
30-day change
-6.24 ft

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

Since yesterday
-0.08 ft
7-day change
-0.13 ft
30-day change
-6.24 ft
Above full pool
2.81 ft
1-year change
+0.58 ft

In brief

Bolivar Lake stood at 897.81 feet on Oct 13, 2026. That is lower than 56% of October readings since 2020.

Source: U.S. Army Corps of Engineers

Lake level timeline

894897900902905SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13FULL POOL 895.00 ftHIGH 904.05LOW 897.74897.81 ft

Records and averages

Current level897.81 ft
Full pool (conservation) 895.00 ft
Flood pool 962.00 ft
Record high944.91 ft (2022-03-11)
Record low897.13 ft (2023-07-20)
Average of all readings901.28 ft
Data span6 years (2,248 readings)

Level schematic

893906920933947FULL POOL 895.00 ft897.81 ft2.81 ftabove full pool

Frequently asked questions

Is Bolivar Lake full right now?

As of 2026-10-13, Bolivar Lake sits at 897.81 ft, which is about average for this time of year. That is 2.81 ft above full pool of 895.00 ft. It is still 64.2 ft below the flood pool of 962.00 ft. Over the past 30 days the level has fallen 6.24 ft.

What is the water level at Bolivar Lake today?

The most recent reading at Bolivar Lake is 897.81 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 Bolivar Lake has ever been?

The highest level for Bolivar Lake in our records is 944.91 ft on 2022-03-11. The lowest is 897.13 ft on 2023-07-20. Our record covers about 6 years of readings.

Is Bolivar Lake low for this time of year?

Compared with every October in our records, the current level is higher than 44% of them, which we classify as about average 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 Bolivar Lake changing 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. Bolivar Lake has fallen 6.24 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 Bolivar Lake changed over the past year?

Bolivar Lake is +0.58 ft compared with this date last year (897.81 ft today). The full-history chart above covers 6 years, with a record high of 944.91 ft and a record low of 897.13 ft.

Download and cite

Quote this reading

Bolivar Lake stood at 897.81 feet on Oct 13, 2026. That is lower than 56% 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

bolivar-lake-oh-water-level-history.csv

2,248 readings, Aug 12, 2020 to Oct 13, 2026. Daily readings. Columns: date, water_level_ft. 42 KB.

How to cite

MyWaterLevel, “Bolivar Lake water level, 2020 to 2026,” data from U.S. Army Corps of Engineers, https://mywaterlevel.com/lake/oh/bolivar-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.