Reservoir · North Dakota · United States · USACE CWMS
Lake Darling Dam
97.6% full
Capacity
134.32 hm³
Volume stored
131 hm³
Coordinates
48.458°N, 101.584°W
Last updated
2026-07-30
Current fill
97.6%vs 7 days ago
+0.5%gaining
vs 1 year ago
-1.6%year-over-year
7-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: 2026-07-30.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 48.458, -101.584 · Open in Google Maps
About Lake Darling Dam
As of July 30, 2026, Lake Darling Dam is filled to 97.6% of its total capacity, holding roughly 131 hm³ of water out of a maximum 134 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.5 pts), and it is 1.6 points below its level on the same date a year earlier.
Across the readings we hold for Lake Darling Dam — 1356 data points between August 1, 2022 and July 30, 2026 — the level has ranged from a low of 2.8% (January 20, 2025) to a high of 105.0% (February 18, 2024). On average the reservoir is fullest around July and at its lowest around January.
It is operated by USACE primarily for multiple purposes. It lies within the North Dakota basin at 48.458°N, 101.584°W.
Key facts
- Current fill level
- 97.6%
- Water stored
- 131 hm³
- Total capacity
- 134 hm³
- 7-day change
- ▲ 0.5 pts
- Year-on-year
- ▼ 1.6 pts
- Primary use
- Multipurpose
- River basin
- North Dakota
- Operator
- USACE
- Coordinates
- 48.458°N, 101.584°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 97.6% | 131 |
| 29 Jul 2026 | 97.1% | 130 |
| 28 Jul 2026 | 98.5% | 132 |
| 27 Jul 2026 | 98.5% | 132 |
| 26 Jul 2026 | 99.0% | 133 |
| 25 Jul 2026 | 98.3% | 132 |
| 24 Jul 2026 | 99.1% | 133 |
| 23 Jul 2026 | 98.3% | 132 |
| 22 Jul 2026 | 98.6% | 132 |
| 21 Jul 2026 | 99.3% | 133 |
| 20 Jul 2026 | 101.8% | 137 |
| 19 Jul 2026 | 99.5% | 134 |
Frequently asked questions
What is the current water level of Lake Darling Dam?
As of July 30, 2026, Lake Darling Dam is at 97.6% of its capacity, holding approximately 131 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Lake Darling Dam reservoir full?
Lake Darling Dam is essentially full, sitting at 97.6% of capacity as of July 30, 2026.
Is the water level at Lake Darling Dam rising or falling?
The level at Lake Darling Dam has been broadly stable over the latest week on record (+0.5 points).
How much water can Lake Darling Dam hold?
Lake Darling Dam has a total capacity of 134 hm³.
Where is Lake Darling Dam reservoir located?
Lake Darling Dam is located in North Dakota, United States, within the North Dakota basin (coordinates 48.458°N, 101.584°W).
What is Lake Darling Dam used for?
Lake Darling Dam is used primarily for multiple purposes, and is managed by USACE.