Reservoir · Alabama · United States · USACE CWMS
Holt Lock and Dam
98.5% full
Capacity
145.54 hm³
Volume stored
143 hm³
Coordinates
33.253°N, 87.449°W
Last updated
2026-07-31
Current fill
98.5%vs 7 days ago
0.0%stable
vs 1 year ago
N/A7-day trend
→stable
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: 2026-07-31.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 33.253, -87.449 · Open in Google Maps
About Holt Lock and Dam
As of July 31, 2026, Holt Lock and Dam is filled to 98.5% of its total capacity, holding roughly 143 hm³ of water out of a maximum 146 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts).
Across the readings we hold for Holt Lock and Dam — 47 data points between June 15, 2026 and July 31, 2026 — the level has ranged from a low of 96.5% (July 14, 2026) to a high of 99.8% (June 20, 2026).
It is operated by USACE primarily for multiple purposes. It lies within the Alabama basin at 33.253°N, 87.449°W.
Key facts
- Current fill level
- 98.5%
- Water stored
- 143 hm³
- Total capacity
- 146 hm³
- 7-day change
- No change
- Primary use
- Multipurpose
- River basin
- Alabama
- Operator
- USACE
- Coordinates
- 33.253°N, 87.449°W
- Last updated
- July 31, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 31 Jul 2026 | 98.5% | 143 |
| 30 Jul 2026 | 98.5% | 143 |
| 29 Jul 2026 | 98.6% | 144 |
| 28 Jul 2026 | 99.4% | 145 |
| 27 Jul 2026 | 99.3% | 144 |
| 26 Jul 2026 | 98.6% | 144 |
| 25 Jul 2026 | 98.9% | 144 |
| 24 Jul 2026 | 98.7% | 144 |
| 23 Jul 2026 | 99.1% | 144 |
| 22 Jul 2026 | 98.7% | 144 |
| 21 Jul 2026 | 98.4% | 143 |
| 20 Jul 2026 | 98.9% | 144 |
Frequently asked questions
What is the current water level of Holt Lock and Dam?
As of July 31, 2026, Holt Lock and Dam is at 98.5% of its capacity, holding approximately 143 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Holt Lock and Dam reservoir full?
Holt Lock and Dam is essentially full, sitting at 98.5% of capacity as of July 31, 2026.
Is the water level at Holt Lock and Dam rising or falling?
The level at Holt Lock and Dam has been broadly stable over the latest week on record (0.0 points).
How much water can Holt Lock and Dam hold?
Holt Lock and Dam has a total capacity of 146 hm³.
Where is Holt Lock and Dam reservoir located?
Holt Lock and Dam is located in Alabama, United States, within the Alabama basin (coordinates 33.253°N, 87.449°W).
What is Holt Lock and Dam used for?
Holt Lock and Dam is used primarily for multiple purposes, and is managed by USACE.