lakedates.com

Illinois · USACE St. Louis District

Lake Shelbyville water level

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

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

FULL POOL 596 598 600
Elevation, feet (NGVD29)

as of September 24, 2026

599.65 ft NGVD29

level 0.1 ft below full pool — typical 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 Shelbyville full?

Not quite — 0.1 ft below full pool as of September 24, 2026

How full is Lake Shelbyville? 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 Shelbyville 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.

full pool 595 600 605 610 615 JFMAMJJASOND
Median and normal range by day of year, 1990–2026 · 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 600 610 JFMAMJJASOND
  • 2026 (this year)
  • 2025 (last year)
  • 1993 (wettest on record)
  • 2012 (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 599.70 ft NGVD29 · per USACE St. Louis District full-pool reference
Conservation capacity 197,635 acre-feet · per USACE St. Louis District capacity reference
Gauge USACE lake gauge · U.S. Army Corps of Engineers Access to Water data
Datum NGVD29 — Top of conservation (summer pool) 599.7 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 Shelbyville today?

Lake Shelbyville is at 599.65 ft (NGVD29) as of September 24, 2026 — 0.1 ft below full pool — typical for late September.

Is Lake Shelbyville full?

Not quite — at 599.65 ft on September 24, 2026, Lake Shelbyville is 0.1 ft below its full pool of 599.70 ft (NGVD29).

How full is Lake Shelbyville?

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 Shelbyville?

Full pool (the conservation pool) for Lake Shelbyville is 599.70 ft NGVD29, per USACE St. Louis District full-pool reference. Levels above it use flood storage; levels below it are drawdown.