Reservoir · Mississippi · United States · USACE CWMS
John Rankin Lock and Dam
Current fill: N/A
Capacity
30.71 hm³
Volume stored
N/A
Coordinates
34.363°N, 88.408°W
Station not currently reporting
The most recent storage reading from this gauge is from 2026-03-02, more than 45 days ago, so the current fill is shown as N/A. The history below reflects that older reading.
Current fill
N/Avs 7 days ago
N/Avs 1 year ago
N/A7-day trend
N/AData 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.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 34.363, -88.408 · Open in Google Maps
About John Rankin Lock and Dam
It is operated by USACE primarily for multiple purposes. It lies within the Mississippi basin at 34.363°N, 88.408°W.
Key facts
- Total capacity
- 31 hm³
- Primary use
- Multipurpose
- River basin
- Mississippi
- Operator
- USACE
- Coordinates
- 34.363°N, 88.408°W
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 2 Mar 2026 | 103.3% | 32 |
| 1 Mar 2026 | 104.1% | 32 |
| 28 Feb 2026 | 103.1% | 32 |
| 27 Feb 2026 | 103.5% | 32 |
| 26 Feb 2026 | 101.8% | 31 |
| 4 Aug 2021 | 103.2% | 32 |
| 3 Aug 2021 | 103.6% | 32 |
| 2 Aug 2021 | 103.4% | 32 |
| 1 Aug 2021 | 103.2% | 32 |
| 31 Jul 2021 | 102.4% | 31 |
| 30 Jul 2021 | 102.4% | 31 |
| 29 Jul 2021 | 101.9% | 31 |
Frequently asked questions
How much water can John Rankin Lock and Dam hold?
John Rankin Lock and Dam has a total capacity of 31 hm³.
Where is John Rankin Lock and Dam reservoir located?
John Rankin Lock and Dam is located in Mississippi, United States, within the Mississippi basin (coordinates 34.363°N, 88.408°W).
What is John Rankin Lock and Dam used for?
John Rankin Lock and Dam is used primarily for multiple purposes, and is managed by USACE.