Reservoir · Tennessee · United States · USACE CWMS
Cordell Hull Lock and Dam
96.5% full
Capacity
318.24 hm³
Volume stored
307 hm³
Vs month average
102% of normal
Coordinates
36.291°N, 85.943°W
Last updated
2026-10-13
Current fill
96.5%vs 7 days ago
-2.6%losing
vs 1 year ago
N/A7-day trend
↓falling
Drought context
Storage vs October average
102%of normal
96.5% full on 2026-10-13, against an average of 94.8% for October across 3 years of readings (+1.7 points).
Drought Monitor at this site · 6 October 2026
D1moderate drought
The ground at Cordell Hull Lock and Dam's coordinates falls inside the D1 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Tennessee drought figures →
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-10-13.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 36.291, -85.943 · Open in Google Maps
About Cordell Hull Lock and Dam
As of October 13, 2026, Cordell Hull Lock and Dam is filled to 96.5% of its total capacity, holding roughly 307 hm³ of water out of a maximum 318 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has fallen by 2.6 percentage points.
Across the readings we hold for Cordell Hull Lock and Dam — 330 data points between October 14, 2021 and October 13, 2026 — the level has ranged from a low of 79.9% (February 2, 2022) to a high of 103.1% (June 29, 2026). On average the reservoir is fullest around June and at its lowest around March.
It is operated by USACE primarily for multiple purposes. It lies within the Tennessee basin at 36.291°N, 85.943°W.
Key facts
- Current fill level
- 96.5%
- Water stored
- 307 hm³
- Total capacity
- 318 hm³
- 7-day change
- ▼ 2.6 pts
- Primary use
- Multipurpose
- River basin
- Tennessee
- Operator
- USACE
- Coordinates
- 36.291°N, 85.943°W
- Last updated
- October 13, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 13 Oct 2026 | 96.5% | 307 |
| 12 Oct 2026 | 95.8% | 305 |
| 11 Oct 2026 | 96.3% | 307 |
| 10 Oct 2026 | 95.4% | 304 |
| 9 Oct 2026 | 95.1% | 303 |
| 8 Oct 2026 | 96.0% | 306 |
| 7 Oct 2026 | 98.1% | 312 |
| 6 Oct 2026 | 99.1% | 315 |
| 5 Oct 2026 | 99.7% | 317 |
| 4 Oct 2026 | 98.4% | 313 |
| 3 Oct 2026 | 98.0% | 312 |
| 2 Oct 2026 | 97.2% | 309 |