Foster Reservoir lake and shoreline

Foster Reservoir Water Level

Oregon

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Foster Reservoir

Foster Reservoir is currently 27.0 feet below full pool, with a water-surface elevation of 614.0 feet.

614.04 ft · Updated 2 hours ago · USACE NWP District

Current level

614.04ft

−26.96 ft vs full pool

Low

Vs full pool

Since last reading

Up 0.29 ft

Previous readingOct 24613.6 ft

7-day change

Up 0.53 ft

7-day trend: Rising

8 daily readings in the last 7 days

30-day change

Down 9.42 ft

30 daily readings in the last 30 days

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Water Level History

Current
614.04 ft
24h
+0.29 ft
7d
+0.53 ft
30d
-9.42 ft

Elevation (ft) NGVD29 · MSL

Reference line is designed full pool.

Water Temperature

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Lake Level Context

Level remains below the full pool

Foster Reservoir is currently 614.04 ft, 26.96 ft below its full pool. The lake has risen 0.53 ft over the past 7 days and fallen 9.42 ft over the past 30 days.

Foster Reservoir Level Details

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

Conditions & Reference

Level status

26.96 ft below full pool

Current level
614.04 ft
Full pool
641 ft
DatumElevation referenced to National Geodetic Vertical Datum of 1929.
NGVD29
Elevation reference
MSL
Source
USACE NWP District

Reference levels

  • Full pool641 ft

Surrounding county drought

Severe Drought

100% of surrounding county in official drought (D1–D4).

Severity

NoneExtreme
Trend
Stable

Surrounding county drought

Linn County, OR

Severe Drought

Severe Drought. The largest share of Linn County, OR is in Severe Drought (D2), an official USDM drought category. These figures describe the surrounding county from the lake location, not the lake itself.. Trend: Stable compared with last week. Official drought (D1–D4) yes

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought (D1–D4)

Yes

100% of the surrounding county is in official drought categories (D1–D4). Dominant category remains Severe Drought.

Typical county impacts (USDM guidance)

  • Lower streamflows in the surrounding county
  • Drier soils and vegetation stress
  • Minor increase in wildfire risk for the area

U.S. Drought Monitor · map date Oct 20, 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 Linn County, OR

Daily level summary

DateLevelChange
Oct 25, 2026613.89+0.29
Oct 24, 2026613.6+0.14
Oct 23, 2026613.46+0.08
Oct 22, 2026613.38-0.02
Oct 21, 2026613.4+0.02
Oct 20, 2026613.38+0.04
Oct 19, 2026613.34-0.02

Common questions about Foster Reservoir’s water level

  • The current water level at Foster Reservoir is 614.04 ft (updated 2 hours ago). You can track the Foster Reservoir lake level on the interactive chart and daily history above.

  • Full pool for Foster Reservoir is 641 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Foster Reservoir lake level is rising — rising about 0.53 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Foster Reservoir is currently 26.96 ft below full pool.

Lake level glossary

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

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