Lake Somerville lake and shoreline

Lake Somerville Water Level

Officially Lake Somerville (Yegua Creek)

Texas

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Lake Somerville is currently 1.0 feet below full pool, with a water-surface elevation of 237.0 feet.

237.01 ft · Updated 11 hours ago · Texas Water Development Board

Current level

237.01ft

−0.99 ft vs full pool

Normal

Vs full pool

Since last reading

Down 0.02 ft

Previous readingSep 9237.03 ft

7-day change

Down 0.15 ft

7-day trend: Falling

8 daily readings in the last 7 days

30-day change

Down 1.02 ft

31 daily readings in the last 30 days

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Water Level History

Elevation (ft) NGVD29 · MSL

237 ft238 ft238 ftFULL POOL 238.00 ftAug 12Sep 11

Level status

0.99 ft below full pool

Current level
237.01 ft
Full pool
238 ft
DatumElevation referenced to National Geodetic Vertical Datum of 1929.
NGVD29
Elevation reference
MSL
Source
Texas Water Development Board

Reference levels

  • Full pool238 ft
  • Flood stage258 ft

Watershed drought

Moderate Drought

80.3% of watershed in official drought (D1+).

Severity

NoneExtreme
Trend
Stable

Watershed drought conditions

Washington County, TX

Moderate Drought

Moderate Drought. Moderate drought is affecting the watershed.. Trend: Stable compared with last week. Official drought yes

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought

Yes

80.3% of the watershed is currently classified as official drought (D1+).

Expected impacts

  • Stream inflows may run below normal
  • Lake levels can decline faster between rain events
  • Vegetation stress may increase over time

U.S. Drought Monitor · map date Sep 8, 2026. Updated weekly. droughtmonitor.unl.eduView drought map for Washington County, TX

Daily level summary

  • Sep 10, 2026

    237.01 ft

    -0.02 ft

  • Sep 9, 2026

    237.03 ft

    -0.01 ft

  • Sep 8, 2026

    237.04 ft

    -0.03 ft

  • Sep 7, 2026

    237.07 ft

    -0.01 ft

  • Sep 6, 2026

    237.08 ft

    -0.02 ft

  • Sep 5, 2026

    237.1 ft

    -0.01 ft

  • Sep 4, 2026

    237.11 ft

    -0.05 ft

Common questions about Lake Somerville’s water level

  • The current water level at Lake Somerville is 237.01 ft (updated 11 hours ago). You can track the Lake Somerville lake level on the interactive chart and daily history above.

  • Full pool for Lake Somerville is 238 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Lake Somerville lake level is falling — falling about 0.15 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Lake Somerville is currently 0.99 ft below full pool.

Lake level glossary

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

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