Lake levels
Black Canyon Reservoir, ID
- water level
- 2496.74 ft
- Condition
- About average for this time of year
- 7-day change
- -0.27 ft
- 30-day change
- -1.01 ft
- 1-year change
- +0.12 ft
Reading as of 2026-09-30 | the U.S. Bureau of Reclamation
- Since yesterday
- -0.03 ft
- 7-day change
- -0.27 ft
- 30-day change
- -1.01 ft
- 1-year change
- +0.12 ft
- Record high
- 2497.88 ft
In brief
Black Canyon Reservoir stood at 2,496.74 feet on Sep 30, 2026. That is lower than 58% of September readings since 2022.
Source: U.S. Bureau of Reclamation
Lake level timeline
Records and averages
| Current level | 2496.74 ft |
|---|---|
| Record high | 2497.88 ft (2026-06-13) |
| Record low | 2455.42 ft (2023-11-25) |
| Average of all readings | 2494.41 ft |
| Data span | 4 years (2,000 readings) |
Level schematic
Trout stocking on Black Canyon Reservoir
IDFG stocked Black Canyon Reservoir 1 time in 2026, 1,380 fish in total. Channel Catfish at Catchable (6+ inches).
| Species | Fish | When |
|---|---|---|
| Channel Catfish | 1,380 | August 2026 |
IDFG lists a week or a month rather than a date, and counts fish as an estimate. Full Idaho stocking schedule →
Frequently asked questions
Is Black Canyon Reservoir full right now?
As of 2026-09-30, Black Canyon Reservoir sits at 2496.74 ft, which is about average for this time of year. Over the past 30 days the level has fallen 1.01 ft.
What is the water level at Black Canyon Reservoir today?
The most recent reading at Black Canyon Reservoir is 2496.74 ft (2026-09-30), sourced from the U.S. Bureau of Reclamation. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Black Canyon Reservoir has ever been?
The highest level for Black Canyon Reservoir in our records is 2497.88 ft on 2026-06-13. The lowest is 2455.42 ft on 2023-11-25. Our record covers about 4 years of readings.
Is Black Canyon Reservoir low for this time of year?
Compared with every September in our records, the current level is higher than 42% of them, which we classify as about average for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.
Why is Black Canyon Reservoir low right now?
Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Black Canyon Reservoir has fallen 1.01 ft over the past 30 days. For the operational reason on any given week, check the U.S. Bureau of Reclamation directly.
How much has Black Canyon Reservoir changed over the past year?
Black Canyon Reservoir is +0.12 ft compared with this date last year (2496.74 ft today). The full-history chart above covers 4 years, with a record high of 2497.88 ft and a record low of 2455.42 ft.
Download and cite
Quote this reading
Black Canyon Reservoir stood at 2,496.74 feet on Sep 30, 2026. That is lower than 58% of September readings since 2022.
Download the full record
black-canyon-reservoir-id-water-level-history.csv
How to cite
MyWaterLevel, “Black Canyon Reservoir water level, 2022 to 2026,” data from U.S. Bureau of Reclamation, https://mywaterlevel.com/lake/id/black-canyon-reservoir/, accessed Oct 13, 2026.
Source: the U.S. Bureau of Reclamation. All Idaho lake levels. Readings are provisional and may be revised. About our data and methods.