Reservoir · North Dakota · United States · BOR RISE
Jamestown Dam and Reservoir
29.1% full
Capacity
131.68 hm³
Volume stored
38 hm³
Coordinates
46.931°N, 98.706°W
Last updated
2026-07-28
Current fill
29.1%vs 7 days ago
0.0%stable
vs 1 year ago
+0.9%year-over-year
7-day trend
→stable
Data source: BOR RISE — US Bureau of Reclamation — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. 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. 46.931, -98.706 · Open in Google Maps
About Jamestown Dam and Reservoir
As of July 28, 2026, Jamestown Dam and Reservoir is filled to 29.1% of its total capacity, holding roughly 38 hm³ of water out of a maximum 132 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it sits close to where it was a year earlier.
Across the readings we hold for Jamestown Dam and Reservoir — 1823 data points between July 31, 2021 and July 28, 2026 — the level has ranged from a low of 19.1% (October 6, 2021) to a high of 100.0% (May 20, 2023). On average the reservoir is fullest around May and at its lowest around December.
It is operated by BOR primarily for multiple purposes. It lies within the North Dakota basin at 46.931°N, 98.706°W.
Key facts
- Current fill level
- 29.1%
- Water stored
- 38 hm³
- Total capacity
- 132 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 0.9 pts
- Primary use
- Multipurpose
- River basin
- North Dakota
- Operator
- BOR
- Coordinates
- 46.931°N, 98.706°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 29.1% | 38 |
| 27 Jul 2026 | 29.1% | 38 |
| 26 Jul 2026 | 29.2% | 39 |
| 25 Jul 2026 | 29.2% | 39 |
| 24 Jul 2026 | 29.3% | 39 |
| 23 Jul 2026 | 29.2% | 38 |
| 22 Jul 2026 | 29.3% | 39 |
| 21 Jul 2026 | 29.4% | 39 |
| 20 Jul 2026 | 29.8% | 39 |
| 19 Jul 2026 | 29.7% | 39 |
| 18 Jul 2026 | 29.6% | 39 |
| 17 Jul 2026 | 29.7% | 39 |
Frequently asked questions
What is the current water level of Jamestown Dam and Reservoir?
As of July 28, 2026, Jamestown Dam and Reservoir is at 29.1% of its capacity, holding approximately 38 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Jamestown Dam and Reservoir reservoir full?
No. As of July 28, 2026, Jamestown Dam and Reservoir is low at 29.1% of its capacity, so it is not full.
Is the water level at Jamestown Dam and Reservoir rising or falling?
The level at Jamestown Dam and Reservoir has been broadly stable over the latest week on record (0.0 points).
How much water can Jamestown Dam and Reservoir hold?
Jamestown Dam and Reservoir has a total capacity of 132 hm³.
Where is Jamestown Dam and Reservoir reservoir located?
Jamestown Dam and Reservoir is located in North Dakota, United States, within the North Dakota basin (coordinates 46.931°N, 98.706°W).
What is Jamestown Dam and Reservoir used for?
Jamestown Dam and Reservoir is used primarily for multiple purposes, and is managed by BOR.