1154.92 ft NAVD88
level Current reading shown; this gauge's public record is too short for seasonal comparisons.
Reading comes straight from U.S. Geological Survey National Water Information System (USGS gauge 442409084274001) and updates live when you load this page.
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 | not published by the operator |
|---|---|
| Gauge | USGS gauge 442409084274001 · U.S. Geological Survey National Water Information System |
| Datum | NAVD88 — A natural lake with no published full-pool figure; the page shows the gauge against the lake's own record. |
| Last verified | August 26, 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 Lake St. Helen today?
Lake St. Helen is at 1154.92 ft (NAVD88) as of August 26, 2026 — Current reading shown; this gauge's public record is too short for seasonal comparisons.
Is Lake St. Helen full?
Natural lake; USGS gauge at St. Helen doesn't publish a conservation-pool figure for Lake St. Helen, so this page shows the latest reading straight from the gauge.
What is full pool for Lake St. Helen?
Natural lake; USGS gauge at St. Helen doesn't publish a single conservation-pool elevation for Lake St. Helen. The reading above comes straight from the operator's gauge.