Hoover Reservoir lake and shoreline

Hoover Reservoir Water Level

Officially Hoover Reservoir (Big Walnut Creek)

Ohio

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Hoover Reservoir

Hoover Reservoir is currently 4.1 feet below full pool, with a water-surface elevation of 889.9 feet.

889.91 ft · Updated 5 hours ago · U.S. Geological Survey

Current level

889.91ft

−4.09 ft vs full pool

Low

Vs full pool

Since last reading

Down 0.07 ft

Previous readingNov 10890.04 ft

7-day change

Up 0.10 ft

7-day trend: Rising

8 daily readings in the last 7 days

30-day change

Down 2.08 ft

30 daily readings in the last 30 days

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Water Level History

Current
889.91 ft
24h
-0.07 ft
7d
+0.10 ft
30d
-2.08 ft

Elevation (ft) MSL

Reference line is designed full pool.

Water Temperature

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Lake Level Context

Level remains below the full pool

Hoover Reservoir is currently 889.91 ft, 4.09 ft below its full pool. The lake has risen 0.10 ft over the past 7 days and fallen 2.08 ft over the past 30 days.

Hoover Reservoir Level Details

Reference elevations, recent daily readings, data sources, and answers to common questions.

Conditions & Reference

Level status

4.09 ft below full pool

Current level
889.91 ft
Full pool
894 ft
DatumVertical reference for published pool and stage elevations at this lake (from the lake catalog).
Not available
Elevation reference
MSL
Source
USGS

Reference levels

  • Full pool894 ft

Surrounding county drought

No Drought

No official drought (D1–D4) reported for the surrounding county.

Severity

NoneExtreme
Trend
Stable

Surrounding county drought

Delaware County, OH

No Drought

No Drought. No USDM drought categories are reported for Delaware County, OH. These figures describe the surrounding county from the lake location, not the lake itself.. Trend: Stable compared with last week. Official drought (D1–D4) no

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought (D1–D4)

No

No D1–D4 area is reported for the surrounding county.

U.S. Drought Monitor · map date Nov 3, 2026. Updated weekly. Official drought means U.S. Drought Monitor categories D1–D4 (Moderate through Exceptional). Abnormally Dry (D0) is not counted as official drought. droughtmonitor.unl.eduView drought map for Delaware County, OH

Daily level summary

DateLevelChange
Nov 11, 2026889.97-0.07
Nov 10, 2026890.04-0.08
Nov 9, 2026890.12-0.07
Nov 8, 2026890.19-0.07
Nov 7, 2026890.26-0.03
Nov 6, 2026890.29+0.18
Nov 5, 2026890.11+0.24

Common questions about Hoover Reservoir’s water level

  • The current water level at Hoover Reservoir is 889.91 ft (updated 5 hours ago). You can track the Hoover Reservoir lake level on the interactive chart and daily history above.

  • Full pool for Hoover Reservoir is 894 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Hoover Reservoir lake level is rising — rising about 0.10 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Hoover Reservoir is currently 4.09 ft below full pool.

Lake level glossary

Definitions for pool targets, datums, and how elevation readings are labeled.

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