Reservoir · Wyoming · United States · USACE CWMS
Grayrocks Dam and Reservoir
Current fill: N/A
Capacity
128.42 hm³
Volume stored
N/A
Coordinates
42.170°N, 104.700°W
Station not currently reporting
The most recent storage reading from this gauge is from 2024-09-19, 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. 42.170, -104.700 · Open in Google Maps
About Grayrocks Dam and Reservoir
It is operated by USACE primarily for multiple purposes. It lies within the Wyoming basin at 42.170°N, 104.700°W.
Key facts
- Total capacity
- 128 hm³
- Primary use
- Multipurpose
- River basin
- Wyoming
- Operator
- USACE
- Coordinates
- 42.170°N, 104.700°W
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 19 Sep 2024 | 87.2% | 112 |
| 18 Sep 2024 | 87.2% | 112 |
| 17 Sep 2024 | 87.2% | 112 |
| 16 Sep 2024 | 87.5% | 112 |
| 11 Sep 2024 | 88.2% | 113 |
| 10 Sep 2024 | 88.5% | 114 |
| 9 Sep 2024 | 88.5% | 114 |
| 5 Sep 2024 | 89.1% | 114 |
| 20 Aug 2024 | 91.7% | 118 |
| 19 Aug 2024 | 92.0% | 118 |
| 18 Aug 2024 | 92.2% | 118 |
| 17 Aug 2024 | 92.3% | 119 |
Frequently asked questions
How much water can Grayrocks Dam and Reservoir hold?
Grayrocks Dam and Reservoir has a total capacity of 128 hm³.
Where is Grayrocks Dam and Reservoir reservoir located?
Grayrocks Dam and Reservoir is located in Wyoming, United States, within the Wyoming basin (coordinates 42.170°N, 104.700°W).
What is Grayrocks Dam and Reservoir used for?
Grayrocks Dam and Reservoir is used primarily for multiple purposes, and is managed by USACE.