Reservoir · North Dakota · United States · BOR RISE
Jamestown Dam and Reservoir
26.9% full
Capacity
131.68 hm³
Volume stored
35 hm³
Vs month average
105% of normal
Coordinates
46.931°N, 98.706°W
Last updated
2026-10-14
Current fill
26.9%vs 7 days ago
-0.5%losing
vs 1 year ago
+1.5%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
105%of normal
26.9% full on 2026-10-14, against an average of 25.7% for October across 6 years of readings (+1.2 points).
Drought Monitor at this site · 13 October 2026
D1moderate drought
The ground at Jamestown Dam and Reservoir's coordinates falls inside the D1 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. North Dakota drought figures →
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: 2026-10-14.
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 October 14, 2026, Jamestown Dam and Reservoir is filled to 26.9% of its total capacity, holding roughly 35 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 (-0.5 pts), and it is 1.5 points above its level on the same date a year earlier.
Across the readings we hold for Jamestown Dam and Reservoir — 1951 data points between October 16, 2021 and October 14, 2026 — the level has ranged from a low of 19.5% (October 25, 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
- 26.9%
- Water stored
- 35 hm³
- Total capacity
- 132 hm³
- 7-day change
- ▼ 0.5 pts
- Year-on-year
- ▲ 1.5 pts
- Primary use
- Multipurpose
- River basin
- North Dakota
- Operator
- BOR
- Coordinates
- 46.931°N, 98.706°W
- Last updated
- October 14, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 14 Oct 2026 | 26.9% | 35 |
| 13 Oct 2026 | 27.1% | 36 |
| 12 Oct 2026 | 27.2% | 36 |
| 11 Oct 2026 | 27.1% | 36 |
| 10 Oct 2026 | 27.2% | 36 |
| 9 Oct 2026 | 27.2% | 36 |
| 8 Oct 2026 | 27.3% | 36 |
| 7 Oct 2026 | 27.4% | 36 |
| 6 Oct 2026 | 27.6% | 36 |
| 5 Oct 2026 | 27.7% | 36 |
| 4 Oct 2026 | 27.8% | 37 |
| 3 Oct 2026 | 27.8% | 37 |