Reservoir · Utah · United States · BOR RISE
Rockport Reservoir and Wanship Dam
55.3% full
Capacity
76.62 hm³
Volume stored
42 hm³
Coordinates
40.775°N, 111.399°W
Last updated
2026-07-28
Current fill
55.3%vs 7 days ago
-0.8%losing
vs 1 year ago
-32.5%year-over-year
7-day trend
→stable
Data source: BOR RISE — US Bureau of Reclamation — 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: 2026-07-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 40.775, -111.399 · Open in Google Maps
About Rockport Reservoir and Wanship Dam
As of July 28, 2026, Rockport Reservoir and Wanship Dam is filled to 55.3% of its total capacity, holding roughly 42 hm³ of water out of a maximum 77 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (-0.8 pts), and it is 32.5 points below its level on the same date a year earlier.
Across the readings we hold for Rockport Reservoir and Wanship Dam — 1824 data points between July 31, 2021 and July 28, 2026 — the level has ranged from a low of 23.5% (August 18, 2021) to a high of 100.3% (June 20, 2023). On average the reservoir is fullest around June and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It lies within the Utah basin at 40.775°N, 111.399°W.
Key facts
- Current fill level
- 55.3%
- Water stored
- 42 hm³
- Total capacity
- 77 hm³
- 7-day change
- ▼ 0.8 pts
- Year-on-year
- ▼ 32.5 pts
- Primary use
- Multipurpose
- River basin
- Utah
- Operator
- BOR
- Coordinates
- 40.775°N, 111.399°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 55.3% | 42 |
| 27 Jul 2026 | 56.1% | 43 |
| 26 Jul 2026 | 56.8% | 44 |
| 25 Jul 2026 | 57.6% | 44 |
| 24 Jul 2026 | 58.3% | 45 |
| 23 Jul 2026 | 59.0% | 45 |
| 22 Jul 2026 | 59.7% | 46 |
| 21 Jul 2026 | 60.3% | 46 |
| 20 Jul 2026 | 60.8% | 47 |
| 19 Jul 2026 | 61.4% | 47 |
| 18 Jul 2026 | 61.9% | 47 |
| 17 Jul 2026 | 62.4% | 48 |
Frequently asked questions
What is the current water level of Rockport Reservoir and Wanship Dam?
As of July 28, 2026, Rockport Reservoir and Wanship Dam is at 55.3% of its capacity, holding approximately 42 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Rockport Reservoir and Wanship Dam reservoir full?
No. As of July 28, 2026, Rockport Reservoir and Wanship Dam is within its normal operating range at 55.3% of its capacity, so it is not full.
Is the water level at Rockport Reservoir and Wanship Dam rising or falling?
The level at Rockport Reservoir and Wanship Dam has been broadly stable over the latest week on record (-0.8 points).
How much water can Rockport Reservoir and Wanship Dam hold?
Rockport Reservoir and Wanship Dam has a total capacity of 77 hm³.
Where is Rockport Reservoir and Wanship Dam reservoir located?
Rockport Reservoir and Wanship Dam is located in Utah, United States, within the Utah basin (coordinates 40.775°N, 111.399°W).
What is Rockport Reservoir and Wanship Dam used for?
Rockport Reservoir and Wanship Dam is used primarily for multiple purposes, and is managed by BOR.