State · United States · USGS · BOR · USACE · CDEC
Tennessee
92.2% average fill
Measured
6
Volume stored
4,394 hm³
Measured capacity
4,766 hm³
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Reservoirs
Sorted by capacityCenter Hill Dam
Updated 2026-08-02
Dale Hollow Dam
Updated 2026-08-02
J Percy Priest Dam
Updated 2026-08-02
Old Hickory Lock and Dam
Updated 2026-08-02
Cordell Hull Lock and Dam
Updated 2026-08-02
Cheatham Dam
Updated 2026-08-02
Storage from official US gauges (USGS, USACE, Bureau of Reclamation, CDEC). Fill % uses design capacity from the National Inventory of Dams where available; a few sites without a match fall back to the 5-year maximum.
About reservoirs in Tennessee
As of August 2, 2026, the reservoirs we track across Tennessee that report live levels hold roughly 4,394 hm³ of water — about 92.2% of their combined capacity. Taken together, Tennessee's reservoirs are high.
None of the tracked reservoirs are currently at critically low levels. Cheatham Dam is the fullest at 105.0%, while J Percy Priest Dam is the lowest at 83.6%.
Over the most recent week on record, 1 reservoir rose across Tennessee.
Storage figures for Tennessee come from USGS · USACE · BOR · CDEC; the most recent reading is from August 2, 2026. Each reservoir below links to its own page with full history and seasonal context.
Tennessee at a glance
- Reservoirs tracked
- 6
- Average fill
- 92.2%
- Water stored
- 4,394 hm³
- Combined capacity
- 4,766 hm³
- Fullest
- Cheatham Dam (105.0%)
- Lowest
- J Percy Priest Dam (83.6%)
- Last updated
- August 2, 2026
Frequently asked questions
How full are reservoirs in Tennessee right now?
As of August 2, 2026, the reservoirs tracked in Tennessee that report live levels are 92.2% full overall, holding about 4,394 hm³ of water.
How many reservoirs are there in Tennessee?
reservoirs.earth tracks 6 reservoirs in Tennessee, with a combined storage capacity of 4,766 hm³.
Which reservoir in Tennessee is the fullest?
Cheatham Dam is currently the fullest reservoir in Tennessee, at 105.0% of capacity.
Which reservoir in Tennessee is the lowest?
J Percy Priest Dam is currently the lowest in Tennessee, at 83.6% of capacity.
Where does the reservoir data for Tennessee come from?
All storage figures for Tennessee come from USGS · USACE · BOR · CDEC, an official source, last updated August 2, 2026.