Reservoir · North Dakota · United States · USACE CWMS
Bowman-Haley Dam & Reservoir
54.8% full
Capacity
24.4 hm³
Volume stored
13 hm³
Coordinates
45.982°N, 103.247°W
Last updated
2026-09-11
Current fill
54.8%vs 7 days ago
-0.9%losing
vs 1 year ago
N/A7-day trend
→stable
Data 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. Last reading: 2026-09-11.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 45.982, -103.247 · Open in Google Maps
About Bowman-Haley Dam & Reservoir
As of September 11, 2026, Bowman-Haley Dam & Reservoir is filled to 54.8% of its total capacity, holding roughly 13 hm³ of water out of a maximum 24 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 (-0.9 pts).
Across the readings we hold for Bowman-Haley Dam & Reservoir — 328 data points between September 12, 2021 and September 11, 2026 — the level has ranged from a low of 42.7% (October 8, 2021) to a high of 66.9% (May 14, 2026). On average the reservoir is fullest around May and at its lowest around February.
It is operated by USACE primarily for multiple purposes. It lies within the North Dakota basin at 45.982°N, 103.247°W.
Key facts
- Current fill level
- 54.8%
- Water stored
- 13 hm³
- Total capacity
- 24 hm³
- 7-day change
- ▼ 0.9 pts
- Primary use
- Multipurpose
- River basin
- North Dakota
- Operator
- USACE
- Coordinates
- 45.982°N, 103.247°W
- Last updated
- September 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Sep 2026 | 54.8% | 13 |
| 10 Sep 2026 | 54.8% | 13 |
| 9 Sep 2026 | 55.0% | 13 |
| 8 Sep 2026 | 55.5% | 14 |
| 7 Sep 2026 | 55.6% | 14 |
| 6 Sep 2026 | 55.6% | 14 |
| 5 Sep 2026 | 55.7% | 14 |
| 4 Sep 2026 | 55.7% | 14 |
| 3 Sep 2026 | 55.9% | 14 |
| 2 Sep 2026 | 55.9% | 14 |
| 1 Sep 2026 | 56.0% | 14 |
| 31 Aug 2026 | 56.1% | 14 |