Lake levels
John W. Flannagan Reservoir, VA
- water level
- 1394.49 ft
- Condition
- Above average for this time of year
- 7-day change
- -0.54 ft
- Below full
- 1.51 ft
- 30-day change
- -1.66 ft
Reading as of 2026-10-13 | the U.S. Army Corps of Engineers
- Since yesterday
- +0.10 ft
- 7-day change
- -0.54 ft
- 30-day change
- -1.66 ft
- Below full
- 1.51 ft
- 1-year change
- +1.28 ft
In brief
John W. Flannagan Reservoir stood at 1,394.49 feet on Oct 13, 2026, 1.51 feet below its full pool of 1,396 feet. That is higher than 66% of October readings since 2020.
Source: U.S. Army Corps of Engineers
Lake level timeline
Records and averages
| Current level | 1394.49 ft |
|---|---|
| Full pool (conservation) | 1396.00 ft |
| Flood pool | 1446.00 ft |
| Record high | 1414.50 ft (2022-07-29) |
| Record low | 1350.08 ft (2022-02-16) |
| Average of all readings | 1388.62 ft |
| Data span | 6 years (2,248 readings) |
Level schematic
Frequently asked questions
Is John W. Flannagan Reservoir full right now?
As of 2026-10-13, John W. Flannagan Reservoir sits at 1394.49 ft, which is above average for this time of year. That is 1.51 ft below full pool of 1396.00 ft. Over the past 30 days the level has fallen 1.66 ft.
What is the water level at John W. Flannagan Reservoir today?
The most recent reading at John W. Flannagan Reservoir is 1394.49 ft (2026-10-13), sourced from the U.S. Army Corps of Engineers. Readings on this page refresh automatically as the agency publishes new data.
What is the highest John W. Flannagan Reservoir has ever been?
The highest level for John W. Flannagan Reservoir in our records is 1414.50 ft on 2022-07-29. The lowest is 1350.08 ft on 2022-02-16. Our record covers about 6 years of readings.
Is John W. Flannagan Reservoir low for this time of year?
Compared with every October in our records, the current level is higher than 66% of them, which we classify as above 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 John W. Flannagan 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. John W. Flannagan Reservoir has fallen 1.66 ft over the past 30 days. For the operational reason on any given week, check the U.S. Army Corps of Engineers directly.
How much has John W. Flannagan Reservoir changed over the past year?
John W. Flannagan Reservoir is +1.28 ft compared with this date last year (1394.49 ft today). The full-history chart above covers 6 years, with a record high of 1414.50 ft and a record low of 1350.08 ft.
Download and cite
Quote this reading
John W. Flannagan Reservoir stood at 1,394.49 feet on Oct 13, 2026, 1.51 feet below its full pool of 1,396 feet. That is higher than 66% of October readings since 2020.
Download the full record
john-w-flannagan-reservoir-va-water-level-history.csv
How to cite
MyWaterLevel, “John W. Flannagan Reservoir water level, 2020 to 2026,” data from U.S. Army Corps of Engineers, https://mywaterlevel.com/lake/va/john-w-flannagan-reservoir/, accessed Oct 13, 2026.
Source: the U.S. Army Corps of Engineers. All Virginia lake levels. Readings are provisional and may be revised. About our data and methods.