1558.96 ft project datum
level 41.0 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 series DWR.Elev-Forebay.Inst.1Hour.0.Best) and updates live when you load this page.
This year vs the years that matter
This year's trace against last year and the driest and wettest years on record — the drought-context question every lake regular asks.
- 2026 (wettest on record)
- 2025 (driest on record)
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 series DWR.Elev-Forebay.Inst.1Hour.0.Best · U.S. Army Corps of Engineers Access to Water data |
| Datum | project datum — Full pool = NWDP level 'DWR.Elev.Inst.0.Top of Normal' = 1600.0. CWMS default is meters — unit=EN verified returning ft. Summer draft for salmon flows is normal. |
| 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
How full is Dworshak Reservoir right now?
Dworshak Reservoir is at 1558.96 ft (project datum) as of August 15, 2026 — 41.0 ft below full pool — this gauge's public record is too short for seasonal comparisons
Is Dworshak Reservoir full?
Not quite — at 1558.96 ft, Dworshak Reservoir is 41.0 ft below its full pool of 1600.00 ft (project datum).
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.