Reservoir · Virginia · United States · USACE CWMS
Lake Moomaw and Gathright Dam
87.7% full
Capacity
152.58 hm³
Volume stored
134 hm³
Coordinates
37.951°N, 79.785°W
Last updated
2026-07-30
Current fill
87.7%vs 7 days ago
-0.1%losing
vs 1 year ago
-11.4%year-over-year
7-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: 2026-07-30.
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 and Gathright Dam
As of July 30, 2026, Lake Moomaw and Gathright Dam is filled to 87.7% of its total capacity, holding roughly 134 hm³ of water out of a maximum 153 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.1 pts), and it is 11.4 points below its level on the same date a year earlier.
Across the readings we hold for Lake Moomaw and Gathright Dam — 193 data points between July 31, 2021 and July 30, 2026 — the level has ranged from a low of 79.6% (September 21, 2021) to a high of 105.0% (May 27, 2026). On average the reservoir is fullest around April and at its lowest around November.
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
- 87.7%
- Water stored
- 134 hm³
- Total capacity
- 153 hm³
- 7-day change
- ▼ 0.1 pts
- Year-on-year
- ▼ 11.4 pts
- Primary use
- Multipurpose
- River basin
- Virginia
- Operator
- USACE
- Coordinates
- 37.951°N, 79.785°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 87.7% | 134 |
| 29 Jul 2026 | 87.8% | 134 |
| 28 Jul 2026 | 88.1% | 134 |
| 27 Jul 2026 | 88.3% | 135 |
| 26 Jul 2026 | 88.6% | 135 |
| 25 Jul 2026 | 88.9% | 136 |
| 24 Jul 2026 | 89.2% | 136 |
| 23 Jul 2026 | 89.5% | 137 |
| 22 Jul 2026 | 89.8% | 137 |
| 21 Jul 2026 | 89.7% | 137 |
| 20 Jul 2026 | 89.9% | 137 |
| 19 Jul 2026 | 90.2% | 138 |
Frequently asked questions
What is the current water level of Lake Moomaw and Gathright Dam?
As of July 30, 2026, Lake Moomaw and Gathright Dam is at 87.7% of its capacity, holding approximately 134 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Lake Moomaw and Gathright Dam reservoir full?
No. As of July 30, 2026, Lake Moomaw and Gathright Dam is high at 87.7% of its capacity, so it is not full.
Is the water level at Lake Moomaw and Gathright Dam rising or falling?
The level at Lake Moomaw and Gathright Dam has been broadly stable over the latest week on record (-0.1 points).
How much water can Lake Moomaw and Gathright Dam hold?
Lake Moomaw and Gathright Dam has a total capacity of 153 hm³.
Where is Lake Moomaw and Gathright Dam reservoir located?
Lake Moomaw and Gathright Dam is located in Virginia, United States, within the Virginia basin (coordinates 37.951°N, 79.785°W).
What is Lake Moomaw and Gathright Dam used for?
Lake Moomaw and Gathright Dam is used primarily for multiple purposes, and is managed by USACE.