lakedates.com

Oregon · Portland General Electric / Confederated Tribes of Warm Springs

Lake Billy Chinook water level

Today's reading against full pool and Lake Billy Chinook's own seasonal history.

Searched “Billy Chinook lake level” or “lake level for Lake Billy Chinook”? Same lake, same reading — you're in the right place. The current reading is right here too, whether you typed “current Lake Billy Chinook water level” or “current water level at Lake Billy Chinook”.

FULL POOL 1940 1942 1944
Elevation, feet (NGVD29)

as of September 23, 2026

1943.38 ft NGVD29

level 1.6 ft below full pool — unusually low for late September

Reading comes straight from U.S. Geological Survey National Water Information System (USGS gauge 14092050) and updates live when you load this page.

Is Lake Billy Chinook full?

Not quite — 1.6 ft below full pool as of September 23, 2026

How full is Lake Billy Chinook? 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.

Lake Billy Chinook through the year

The band is the lake's own normal: where the level has run on each calendar day, 2005–2026. The summer drawdown — and how this year sits in it — shows up without reading a single number.

full pool 1938 1940 1942 1944 JFMAMJJASOND
Median and normal range by day of year, 2005–2026 · elevation, feet (NGVD29)

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.

full pool 1938 1940 1942 1944 JFMAMJJASOND
  • 2026 (this year)
  • 2025 (last year)
  • 2022 (wettest on record)
  • 2007 (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 1945.00 ft NGVD29 · per Portland General Electric / Confederated Tribes of Warm Springs full-pool reference
Gauge USGS gauge 14092050 · U.S. Geological Survey National Water Information System
Datum NGVD29
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 Lake Billy Chinook today?

Lake Billy Chinook is at 1943.38 ft (NGVD29) as of September 23, 2026 — 1.6 ft below full pool — unusually low for late September.

Is Lake Billy Chinook full?

Not quite — at 1943.38 ft on September 23, 2026, Lake Billy Chinook is 1.6 ft below its full pool of 1945.00 ft (NGVD29).

How full is Lake Billy Chinook?

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 Lake Billy Chinook?

Full pool (the conservation pool) for Lake Billy Chinook is 1945.00 ft NGVD29, per Portland General Electric / Confederated Tribes of Warm Springs full-pool reference. Levels above it use flood storage; levels below it are drawdown.