1080.76 ft project datum
level 0.8 ft above full pool — this gauge's public record is too short for seasonal comparisons
Reading comes straight from U.S. Army Corps of Engineers Access to Water data (USACE series Cowanesque.Elev.Inst.1Hour.0.Best-NAB-Smoothed-PY3) and updates live when you load this page.
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 | 1080.00 ft project datum · per USACE Baltimore District full-pool reference |
|---|---|
| Conservation capacity | 29,876 acre-feet · per USACE Baltimore District capacity reference |
| Gauge | USACE series Cowanesque.Elev.Inst.1Hour.0.Best-NAB-Smoothed-PY3 · U.S. Army Corps of Engineers Access to Water data |
| Datum | project datum — The district publishes the gauge and the top of conservation pool figure in the project's own datum, so the two compare like for like. |
| Last verified | August 20, 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 Cowanesque Lake right now?
Cowanesque Lake is at 1080.76 ft (project datum) as of August 20, 2026 — 0.8 ft above full pool — this gauge's public record is too short for seasonal comparisons
Is Cowanesque Lake full?
Yes and then some — at 1080.76 ft, Cowanesque Lake is 0.8 ft above its full pool of 1080.00 ft (project datum), using flood storage.
What is full pool for Cowanesque Lake?
Full pool (the conservation pool) for Cowanesque Lake is 1080.00 ft project datum, per USACE Baltimore District full-pool reference. Levels above it use flood storage; levels below it are drawdown.