Current level
799.71ft
−5.29 ft vs full pool
Low
Vs full pool
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Great Falls Reservoir is currently at 799.71 ft, 5.29 ft below full pool. The current Great Falls Reservoir lake level fell 0.46 ft since the last reading and remains down 0.30 ft over the past seven days.
Great Falls Reservoir is 5.29 ft below full pool, and its current lake level has fallen 0.30 ft over the past seven days.
799.71 ft · Updated 1 hour ago · Tennessee Valley Authority
Current level
799.71ft
−5.29 ft vs full pool
Low
Vs full pool
Since last reading
Previous readingAug 15800.66 ft
7-day change
7-day trend: Falling
8 daily readings in the last 7 days
30-day change
31 daily readings in the last 30 days
Selected for low water conditions. Water levels are running well below full pool, so navigation and shallow-water awareness gear is especially useful right now.

Water levels are running well below full pool, so navigation and shallow-water awareness gear is especially useful right now.
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Elevation (ft) MSL
Published elevations from lake operators when provided by the data service.
DeKalb County, TN
No Drought
ImprovingNo official drought conditions.
Severity
Official drought: Abnormally dry (D0), not official drought.
Aug 16, 2026
800.2 ft
-0.46 ft
Aug 15, 2026
800.66 ft
-0.27 ft
Aug 14, 2026
800.93 ft
+0.3 ft
Aug 13, 2026
800.63 ft
+0.19 ft
Aug 12, 2026
800.44 ft
-0.19 ft
Aug 11, 2026
800.63 ft
+0.28 ft
Aug 10, 2026
800.35 ft
-0.15 ft
| Date | Level (ft) | Change (ft) |
|---|---|---|
| Aug 16, 2026 | 800.2 | -0.46 |
| Aug 15, 2026 | 800.66 | -0.27 |
| Aug 14, 2026 | 800.93 | +0.3 |
| Aug 13, 2026 | 800.63 | +0.19 |
| Aug 12, 2026 | 800.44 | -0.19 |
| Aug 11, 2026 | 800.63 | +0.28 |
| Aug 10, 2026 | 800.35 | -0.15 |
| Aug 9, 2026 | 800.5 | -0.25 |
| Aug 8, 2026 | 800.75 | -0.05 |
| Aug 7, 2026 | 800.8 | +0.38 |
| Aug 6, 2026 | 800.42 | -0.04 |
| Aug 5, 2026 | 800.46 | +0.07 |
| Aug 4, 2026 | 800.39 | +0.13 |
| Aug 3, 2026 | 800.26 | +0.19 |
The current water level at Great Falls Reservoir is 799.71 ft (updated 1 hour ago). You can track the Great Falls Reservoir lake level on the interactive chart and daily history above.
Full pool for Great Falls Reservoir is 805 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.
The current 7-day trend for the Great Falls Reservoir lake level is falling — falling about 0.30 ft over the past week. See the history chart above for the full picture.
Based on the latest gauge reading, Great Falls Reservoir is currently 5.29 ft below full pool.
Definitions for pool targets, datums, and how elevation readings are labeled.
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