404.84 ft NGVD29
level 0.2 ft below full pool — on the low side for mid-August
Reading comes straight from U.S. Army Corps of Engineers Access to Water data (USACE series Rend Lk-Big Muddy.Elev.Inst.30Minutes.0.lrgsShef-rev) and updates live when you load this page.
Rend Lake through the year
The band is the lake's own normal: where the level has run on each calendar day, 1990–2026. The summer drawdown — and how this year sits in it — shows up without reading a single number.
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.
- 2019 (wettest on record)
- 2026 (driest on record)
- 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 | 405.00 ft NGVD29 · per USACE St. Louis District full-pool reference |
|---|---|
| Conservation capacity | 177,665 acre-feet · per USACE St. Louis District capacity reference |
| Gauge | USACE series Rend Lk-Big Muddy.Elev.Inst.30Minutes.0.lrgsShef-rev · U.S. Army Corps of Engineers Access to Water data |
| Datum | NGVD29 — Top of conservation 405.0 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
How full is Rend Lake right now?
Rend Lake is at 404.84 ft (NGVD29) as of August 15, 2026 — 0.2 ft below full pool — on the low side for mid-August
Is Rend Lake full?
Not quite — at 404.84 ft, Rend Lake is 0.2 ft below its full pool of 405.00 ft (NGVD29).
What is full pool for Rend Lake?
Full pool (the conservation pool) for Rend Lake is 405.00 ft NGVD29, per USACE St. Louis District full-pool reference. Levels above it use flood storage; levels below it are drawdown.