4131.18 ft NAVD88
level 30.8 ft below full pool — this gauge's public record is too short for seasonal comparisons
Reading comes straight from U.S. Geological Survey National Water Information System (USGS gauge 10312100) and updates live when you load this page.
Is Lahontan Reservoir full?
Not quite — 30.8 ft below full pool as of September 23, 2026
How full is Lahontan 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.
This year vs the years that matter
This year's trace against the finished years this gauge has published. Its public daily record begins in 2020, so the driest and wettest years are not named yet: that takes 8 finished years, and the lake regulars will remember wetter and drier years than any line here.
- 2026 (this year)
- 2025 (last year)
- 2024
- 2021
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 | 4162.00 ft NAVD88 · per USBR Newlands Project / TCID full-pool reference |
|---|---|
| Gauge | USGS gauge 10312100 · U.S. Geological Survey National Water Information System |
| Datum | NAVD88 — The gauge reads NAVD88 while Reclamation's 4,162.0 ft conservation top is on the project datum — the two frames differ by roughly 3-4 ft here, so treat feet below full as approximate. |
| 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 Lahontan Reservoir today?
Lahontan Reservoir is at 4131.18 ft (NAVD88) as of September 23, 2026 — 30.8 ft below full pool — this gauge's public record is too short for seasonal comparisons.
Is Lahontan Reservoir full?
Not quite — at 4131.18 ft on September 23, 2026, Lahontan Reservoir is 30.8 ft below its full pool of 4162.00 ft (NAVD88).
How full is Lahontan 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 Lahontan Reservoir?
Full pool (the conservation pool) for Lahontan Reservoir is 4162.00 ft NAVD88, per USBR Newlands Project / TCID full-pool reference. Levels above it use flood storage; levels below it are drawdown.