Unity Reservoir Water Level

Oregon · updated daily from the U.S. Bureau of Reclamation

3786.53 ft

Unity Reservoir is low for this time of year and falling (-3.25 ft in the last 7 days).

Change since yesterday: -1.36 ft

Reading as of 2026-08-14 · higher than 0% of August readings on record

Where Unity Reservoir sits historically

TODAY 3786.53 ftRECORD LOW3786.53 ft2026-08-14RECORD HIGH998877 ft2026-05-04

Today's level compared with every reading in our 4.5-year record for this lake.

Since yesterday

-1.36 ft

7-day change

-3.25 ft

30-day change

-10.92 ft

1-year change

-12.71 ft

Last 30 days

2026-07-153785.2–3798.8 ft2026-08-14

Last 12 months

2025-08-14-115624.3–1118287.9 ft2026-08-14

Full history (4.5 years)

2022-02-233783.7–3824.0 ft2026-08-11

Unity Reservoir records and averages

Current level3786.53 ft
Record high998877.0 ft (2026-05-04)
Record low3786.53 ft (2026-08-14)
Average of all readings4302.56 ft
Data span4.5 years (1,997 readings)

Frequently asked questions

Is Unity Reservoir full right now?

As of 2026-08-14, Unity Reservoir sits at 3786.53 ft, which is low for this time of year.Over the past 30 days the level has fallen 10.92 ft.

What is the water level at Unity Reservoir today?

The most recent reading is 3786.53 ft (2026-08-14), sourced from the U.S. Bureau of Reclamation. Readings on this page refresh automatically as the agency publishes new data.

What is the highest Unity Reservoir has ever been?

The highest level in our records is 998877.0 ft on 2026-05-04. The lowest is 3786.53 ft on 2026-08-14. Our record covers about 4.5 years of readings.

Is Unity Reservoir low for this time of year?

Compared with every August in our records, the current level is higher than 0% of them — low 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 Unity Reservoir 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. Unity Reservoir has fallen 10.92 ft over the past 30 days. For the operational reason on any given week, check the U.S. Bureau of Reclamation directly.

How much has Unity Reservoir changed over the past year?

The level is -12.71 ft compared with this date last year (3786.53 ft today). The full-history chart above covers 4.5 years, with a record high of 998877.0 ft and a record low of 3786.53 ft.

Nearby lakes in Oregon

Phillips Lake and Mason water level
3992.95 ft · falling
Beulah Reservoir and Agency Valley water level
3304.71 ft · falling
Thief Valley Reservoir water level
3096.44 ft · steady
Warm Springs Reservoir water level
3357.78 ft · falling
McKay Reservoir water level
1268.95 ft · falling
Lake Owyhee and Owyhee water level
2617.79 ft · falling

Source: the U.S. Bureau of Reclamation. Readings are provisional and subject to revision by the publishing agency. All Oregon lake levels.