Reservoir · Virginia · United States · USACE CWMS
Lake Moomaw
Lake Moomaw and Gathright Dam
77.2% full
Capacity
152.58 hm³
Volume stored
118 hm³
Coordinates
37.951°N, 79.785°W
Last updated
2026-09-11
Current fill
77.2%vs 7 days ago
-1.8%losing
vs 1 year ago
N/A7-day trend
↓falling
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: 2026-09-11.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 37.951, -79.785 · Open in Google Maps
About Lake Moomaw
As of September 11, 2026, Lake Moomaw is filled to 77.2% of its total capacity, holding roughly 118 hm³ of water out of a maximum 153 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has fallen by 1.8 percentage points.
Across the readings we hold for Lake Moomaw — 187 data points between September 12, 2021 and September 11, 2026 — the level has ranged from a low of 76.7% (December 24, 2021) to a high of 99.0% (June 10, 2026). On average the reservoir is fullest around June and at its lowest around December.
It is operated by USACE primarily for multiple purposes. It lies within the Virginia basin at 37.951°N, 79.785°W.
Key facts
- Current fill level
- 77.2%
- Water stored
- 118 hm³
- Total capacity
- 153 hm³
- 7-day change
- ▼ 1.8 pts
- Primary use
- Multipurpose
- River basin
- Virginia
- Operator
- USACE
- Coordinates
- 37.951°N, 79.785°W
- Last updated
- September 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Sep 2026 | 77.2% | 118 |
| 10 Sep 2026 | 77.3% | 118 |
| 9 Sep 2026 | 77.6% | 118 |
| 8 Sep 2026 | 77.9% | 119 |
| 7 Sep 2026 | 78.2% | 119 |
| 6 Sep 2026 | 78.5% | 120 |
| 5 Sep 2026 | 78.7% | 120 |
| 4 Sep 2026 | 79.0% | 121 |
| 3 Sep 2026 | 79.3% | 121 |
| 2 Sep 2026 | 79.6% | 121 |
| 1 Sep 2026 | 79.9% | 122 |
| 31 Aug 2026 | 80.2% | 122 |