Dworshak Reservoir

Name: Dworshak Reservoir (Idaho) water level
Creator: U.S. Army Corps of Engineers

Idaho · USACE gauge

Grey bar: 12-month range 1,513.1–1,600.1 ft; red line: full pool 1,600.0 ft.

Water level · NGVD29

1,515.46FT

Gauge elevation · no % full published

7 days −1.05 ft30 days −4.52 ftvs last year +2.02 ft

Reading for Oct 25, 2026, 21:00 UTC · page refreshed Oct 25, 21:53 UTC
Source: U.S. Army Corps of Engineers (CWMS Data API)

Worth going today?This Afternoon

Looks good

Light wind, dry

Wind5 mph

Rain0%

Temp67°F

Level1,515.5 ft

This AfternoonMostly Sunny · 67°F
ESE 5 mph · rain 0%

TonightMostly Cloudy · 41°F
ENE 2 to 7 mph · rain 2%

Lake is 84.5 ft below its conservation pool; some ramps may be out of the water – check with the Corps project office.

NWS forecast for the gauge location. Good = wind ≤ 10 mph and rain ≤ 30%; storms are flagged. Not safety advice – check local conditions, closures and warnings.

Level history

30 days1 year

Field notes

As of Oct 25, 2026, Dworshak Reservoir stood at 1,515.46 (NGVD29) ft.

That is 84.54 ft below the conservation (full) pool elevation of 1,600.00 ft.

Over the past 7 days the lake has been falling (−1.05 ft), and it is −4.52 ft over 30 days.

Compared with a year ago (1,513.44 ft), the lake is 2.02 ft higher.

Readings are the hourly pool elevation the U.S. Army Corps of Engineers publishes for Dworshak_Dam (NWDP); changes compare readings at the same hour.

Lake facts

Gauge / station	Dworshak_Dam (NWDP)
Elevation datum	ft (NGVD29)
Gauge location	46.5100, -116.2961

Reference levels

Level · source	Elevation	Today vs level
Top of conservation pool USACE “Top of Normal”	1,600.00 ft	−84.54 ft
Top of flood-control pool USACE “Top of Flood”	1,604.90 ft	−89.44 ft
Top of inactive pool (minimum) USACE “Top of Inactive”	1,350.00 ft	+165.46 ft
Top of dam USACE “Top of Dam”	1,613.00 ft	−97.54 ft

Only levels the agency publishes, or that we compute directly from its own records, are listed. “Today vs level” = latest reading minus the reference level. A level the source does not publish is left out rather than estimated.

Nearby lakes

Mann Lake28 mi W1,788.12 ft−0.54 ft Soldiers Meadow Reservoir32 mi SW4,495.57 ft−0.65 ft Lake Waha33 mi SW3,366.60 ft−0.02 ft Bennington Lake99 mi W · WA1,194.86 ft−0.33 ft Lake Como103 mi E · MT4,204.95 ft−0.80 ft

Common questions

How full is Dworshak Reservoir right now?

The Corps feed we use gives pool elevation, not percent full. On Oct 25, 2026 the lake was at 1,515.46 ft, 84.54 ft below the top of conservation pool of 1,600.00 ft.

How high can Dworshak Reservoir go before flood storage is full?

The U.S. Army Corps of Engineers lists the top of the flood-control pool at 1,604.90 ft.

What is full pool at Dworshak Reservoir?

The conservation (full) pool elevation published by the U.S. Army Corps of Engineers is 1,600.00 ft. The lake is currently 84.54 ft below it.

Is Dworshak Reservoir rising or falling?

Over the last 7 days it changed −1.05 ft and over 30 days −4.52 ft.

How often is this page updated?

The page is rebuilt automatically every day from USACE's published data. Values can be revised later by the source agency.

Where does the data come from?

The U.S. Army Corps of Engineers' public CWMS Data API (cwms-data.usace.army.mil), which publishes pool elevations and the project's reference levels. Forecasts come from the National Weather Service.

Hourly pool elevation published by the U.S. Army Corps of Engineers; 7-day, 30-day and year-ago changes compare readings at the same hour. USACE data are provisional and subject to revision. This page is not affiliated with or endorsed by the U.S. Army Corps of Engineers. See data sources.