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Colorado · USBR Upper Colorado Basin Region (Aspinall Unit)

Blue Mesa Reservoir water level

Today's reading against full pool and Blue Mesa Reservoir's own seasonal history.

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

FULL POOL 7450 7500
Elevation, feet (USBR project datum)

as of September 22, 2026

7413.51 ft USBR project datum

level 105.5 ft below full pool — unusually low for late September

Reading comes straight from Bureau of Reclamation RISE (Reclamation RISE item 78) and updates live when you load this page.

Is Blue Mesa Reservoir full?

Not quite — 105.5 ft below full pool as of September 22, 2026

How full is Blue Mesa Reservoir? 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.

Blue Mesa Reservoir through the year

The band is the lake's own normal: where the level has run on each calendar day, 1980–2026. The summer drawdown — and how this year sits in it — shows up without reading a single number.

full pool 7450 7500 JFMAMJJASOND
Median and normal range by day of year, 1980–2026 · elevation, feet (USBR project datum)

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 7450 7500 JFMAMJJASOND
  • 2026 (this year)
  • 2025 (last year)
  • 1991 (wettest on record)
  • 2022 (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 7519.00 ft USBR project datum · per USBR Upper Colorado Basin Region (Aspinall Unit) full-pool reference
Conservation capacity 940,800 acre-feet · per USBR Upper Colorado Basin Region (Aspinall Unit) capacity reference
Gauge Reclamation RISE item 78 · Bureau of Reclamation RISE
Datum USBR project datum — USBR Aspinall page: full at 7,519 ft = 940,800 ac-ft total.
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 Blue Mesa Reservoir today?

Blue Mesa Reservoir is at 7413.51 ft (USBR project datum) as of September 22, 2026 — 105.5 ft below full pool — unusually low for late September.

Is Blue Mesa Reservoir full?

Not quite — at 7413.51 ft on September 22, 2026, Blue Mesa Reservoir is 105.5 ft below its full pool of 7519.00 ft (USBR project datum).

How full is Blue Mesa Reservoir?

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 Blue Mesa Reservoir?

Full pool (the conservation pool) for Blue Mesa Reservoir is 7519.00 ft USBR project datum, per USBR Upper Colorado Basin Region (Aspinall Unit) full-pool reference. Levels above it use flood storage; levels below it are drawdown.