Reservoir · Utah · United States · BOR RISE
Rockport Reservoir
Rockport Reservoir and Wanship Dam
31.4% full
Capacity
76.62 hm³
Volume stored
24 hm³
Coordinates
40.775°N, 111.399°W
Last updated
2026-09-12
Current fill
31.4%vs 7 days ago
-1.9%losing
vs 1 year ago
-15.2%year-over-year
7-day trend
↓falling
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: 2026-09-12.
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
As of September 12, 2026, Rockport Reservoir is filled to 31.4% of its total capacity, holding roughly 24 hm³ of water out of a maximum 77 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has fallen by 1.9 percentage points, and it is 15.2 points below its level on the same date a year earlier.
Across the readings we hold for Rockport Reservoir — 1824 data points between September 15, 2021 and September 12, 2026 — the level has ranged from a low of 24.1% (April 30, 2023) 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
- 31.4%
- Water stored
- 24 hm³
- Total capacity
- 77 hm³
- 7-day change
- ▼ 1.9 pts
- Year-on-year
- ▼ 15.2 pts
- Primary use
- Multipurpose
- River basin
- Utah
- Operator
- BOR
- Coordinates
- 40.775°N, 111.399°W
- Last updated
- September 12, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 12 Sep 2026 | 31.4% | 24 |
| 11 Sep 2026 | 31.3% | 24 |
| 10 Sep 2026 | 31.4% | 24 |
| 9 Sep 2026 | 31.8% | 24 |
| 8 Sep 2026 | 32.2% | 25 |
| 7 Sep 2026 | 32.5% | 25 |
| 6 Sep 2026 | 32.9% | 25 |
| 5 Sep 2026 | 33.3% | 26 |
| 4 Sep 2026 | 33.7% | 26 |
| 3 Sep 2026 | 34.0% | 26 |
| 2 Sep 2026 | 34.4% | 26 |
| 1 Sep 2026 | 34.7% | 27 |