Iowa · USACE Rock Island District

Lake Red Rock water level

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

FULL POOL 740 745 750
Elevation, feet (NGVD29)

as of August 15, 2026

744.57 ft NGVD29

level 2.6 ft above full pool — typical for mid-August

Reading comes straight from U.S. Army Corps of Engineers Access to Water data (USACE series PELI4.Elev-Pool.Inst.30Minutes.0.rev) and updates live when you load this page.


Lake Red Rock through the year

The band is the lake's own normal: where the level has run on each calendar day, 2011–2026. The summer drawdown — and how this year sits in it — shows up without reading a single number.

full pool 740 750 760 JFMAMJJASOND
Median and normal range by day of year, 2011–2026 · 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 740 750 760 770 JFMAMJJASOND
  • 2018 (wettest on record)
  • 2023 (driest on record)
  • 2025 (last year)
  • 2026 (this 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 742.00 ft NGVD29 · per USACE Rock Island District full-pool reference
Conservation capacity 189,020 acre-feet · per USACE Rock Island District capacity reference
Gauge USACE series PELI4.Elev-Pool.Inst.30Minutes.0.rev · U.S. Army Corps of Engineers Access to Water data
Datum NGVD29 — PELI4 = Red Rock pool gauge (NWS id). Top of conservation 742.0 NGVD29; currently ~2.5 ft above conservation.
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 Lake Red Rock right now?

Lake Red Rock is at 744.57 ft (NGVD29) as of August 15, 2026 — 2.6 ft above full pool — typical for mid-August

Is Lake Red Rock full?

Yes and then some — at 744.57 ft, Lake Red Rock is 2.6 ft above its full pool of 742.00 ft (NGVD29), using flood storage.

What is full pool for Lake Red Rock?

Full pool (the conservation pool) for Lake Red Rock is 742.00 ft NGVD29, per USACE Rock Island District full-pool reference. Levels above it use flood storage; levels below it are drawdown.