lakedates.com

Oklahoma · USACE Tulsa District (SWT)

Lake Tenkiller water level

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

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

FULL POOL 626 628 630 632 634
Elevation, feet (project datum (NGVD29-era))

as of September 24, 2026

625.87 ft project datum (NGVD29-era)

level 6.1 ft below full pool — unusually low for late September

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 Lake Tenkiller full?

Not quite — 6.1 ft below full pool as of September 24, 2026

How full is Lake Tenkiller? 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 Tenkiller through the year

The band is the lake's own normal: where the level has run on each calendar day, 2014–2026. The summer drawdown — and how this year sits in it — shows up without reading a single number.

full pool 630 640 650 660 JFMAMJJASOND
Median and normal range by day of year, 2014–2026 · elevation, feet (project datum (NGVD29-era))

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 630 640 650 660 JFMAMJJASOND
  • 2026 (this year)
  • 2025 (last year)
  • 2019 (wettest on record)
  • 2018 (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 632.00 ft project datum (NGVD29-era) · per USACE Tulsa District (SWT) full-pool reference
Gauge USACE lake gauge · U.S. Army Corps of Engineers Access to Water data
Datum project datum (NGVD29-era) — Top of conservation 632.0 per SWT lakepage.
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 Tenkiller today?

Lake Tenkiller is at 625.87 ft (project datum (NGVD29-era)) as of September 24, 2026 — 6.1 ft below full pool — unusually low for late September.

Is Lake Tenkiller full?

Not quite — at 625.87 ft on September 24, 2026, Lake Tenkiller is 6.1 ft below its full pool of 632.00 ft (project datum (NGVD29-era)).

How full is Lake Tenkiller?

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 Tenkiller?

Full pool (the conservation pool) for Lake Tenkiller is 632.00 ft project datum (NGVD29-era), per USACE Tulsa District (SWT) full-pool reference. Levels above it use flood storage; levels below it are drawdown.