Reservoir · North Dakota · United States · USACE CWMS
Dickinson Dam on the Heart R
66.0% full
Capacity
10.62 hm³
Volume stored
7 hm³
Vs month average
87% of normal
Coordinates
46.870°N, 102.827°W
Last updated
2026-10-27
Current fill
66.0%vs 7 days ago
-0.3 pplosing
vs 1 year ago
-8.8 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
87%of normal
66.0% full on 2026-10-27, against an average of 76.2% for October across 6 years of readings (-10.2 points).
Drought Monitor at this site · 20 October 2026
D1moderate drought
The ground at Dickinson Dam on the Heart R'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: 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: 2026-10-27.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 46.870°N, 102.827°W · Open in Google Maps
About Dickinson Dam on the Heart R
As of October 27, 2026, Dickinson Dam on the Heart R is filled to 66.0% of its total capacity, holding 7.01 hm³ of water out of a maximum 10.62 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 (-0.3 pp), and it is 8.8 points below its level on the same date a year earlier.
Across the readings we hold for Dickinson Dam on the Heart R — 1771 data points between October 29, 2021 and October 27, 2026 — the level has ranged from a low of 50.1% (November 1, 2021) to a high of 104.7% (May 6, 2022). On average the reservoir is fullest around May and at its lowest around January.
It is operated by USACE primarily for multiple purposes. It is at 46.870°N, 102.827°W.
Key facts
- Current fill level
- 66.0% of total capacity
- Water stored
- 7.01 hm³
- Total capacity
- 10.62 hm³
- 7-day change
- ▼ 0.3 pp
- Year-on-year
- ▼ 8.8 pp
- Primary use
- Multipurpose
- Operator
- USACE
- Coordinates
- 46.870°N, 102.827°W
- Last updated
- October 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Oct 2026 | 66.0% | 7.01 |
| 26 Oct 2026 | 66.1% | 7.02 |
| 25 Oct 2026 | 66.2% | 7.03 |
| 24 Oct 2026 | 66.9% | 7.11 |
| 23 Oct 2026 | 66.3% | 7.04 |
| 22 Oct 2026 | 66.3% | 7.04 |
| 21 Oct 2026 | 66.3% | 7.04 |
| 20 Oct 2026 | 66.3% | 7.04 |
| 19 Oct 2026 | 66.4% | 7.05 |
| 18 Oct 2026 | 66.6% | 7.07 |
| 17 Oct 2026 | 66.7% | 7.08 |
| 16 Oct 2026 | 66.7% | 7.08 |