1520.20 ft project datum
level 79.8 ft below full pool — this gauge's public record is too short for seasonal comparisons
Reading comes straight from U.S. Army Corps of Engineers Access to Water data (USACE lake gauge) and updates live when you load this page.
Is Dworshak Reservoir full?
Not quite — 79.8 ft below full pool as of September 24, 2026
How full is Dworshak Reservoir? Not as a percentage: no storage figure comes through with this gauge reading, and a share of capacity worked out from the elevation alone would be a guess — how much water a reservoir holds at a given level is a curve only the operator's own capacity table knows. Feet from full pool is what the operator publishes, and it is the figure above.
This year vs the years that matter
This year's trace against the finished years this gauge has published. Its public daily record begins in 2025, so the driest and wettest years are not named yet: that takes 8 finished years, and the lake regulars will remember wetter and drier years than any line here.
- 2026 (this year)
- 2025 (last year)
Full pool, datum, and the gauge
"Full pool" here means the conservation pool — the level the lake is designed to hold for water supply and recreation, not the flood-control space above it. The full explainer covers flood pool and dead pool too.
| Full pool | 1600.00 ft project datum · per USACE Walla Walla District full-pool reference |
|---|---|
| Gauge | USACE lake gauge · U.S. Army Corps of Engineers Access to Water data |
| Datum | project datum — Full pool is 1,600.0 ft, and a deep summer draft for salmon flows is normal here rather than a sign of drought. |
| Last verified | August 15, 2026 |
LakeDates reports lake level, not ramp status. Whether a given ramp or marina is usable at this level varies ramp by ramp — call the marina before you tow.
Quick answers
What is the lake level for Dworshak Reservoir today?
Dworshak Reservoir is at 1520.20 ft (project datum) as of September 24, 2026 — 79.8 ft below full pool — this gauge's public record is too short for seasonal comparisons.
Is Dworshak Reservoir full?
Not quite — at 1520.20 ft on September 24, 2026, Dworshak Reservoir is 79.8 ft below its full pool of 1600.00 ft (project datum).
How full is Dworshak Reservoir?
Not as a percentage: no storage figure comes through with this gauge reading, and a share of capacity worked out from the elevation alone would be a guess — how much water a reservoir holds at a given level is a curve only the operator's own capacity table knows. Feet from full pool is what the operator publishes, and it is the figure above.
What is full pool for Dworshak Reservoir?
Full pool (the conservation pool) for Dworshak Reservoir is 1600.00 ft project datum, per USACE Walla Walla District full-pool reference. Levels above it use flood storage; levels below it are drawdown.