Reservoir · Idaho · United States · BOR RISE
Deadwood Reservoir and Dam
85.2% full
Capacity
189.95 hm³
Volume stored
162 hm³
Coordinates
44.293°N, 115.646°W
Last updated
2026-07-28
Current fill
85.2%vs 7 days ago
-1.0%losing
vs 1 year ago
-13.5%year-over-year
7-day trend
→stable
Data source: BOR RISE — US Bureau of Reclamation — 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: 2026-07-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 44.293, -115.646 · Open in Google Maps
About Deadwood Reservoir and Dam
As of July 28, 2026, Deadwood Reservoir and Dam is filled to 85.2% of its total capacity, holding roughly 162 hm³ of water out of a maximum 190 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-1.0 pts), and it is 13.5 points below its level on the same date a year earlier.
Across the readings we hold for Deadwood Reservoir and Dam — 2189 data points between July 31, 2021 and July 28, 2026 — the level has ranged from a low of 36.6% (September 16, 2021) to a high of 101.8% (June 30, 2023). On average the reservoir is fullest around June and at its lowest around September.
It is operated by BOR primarily for multiple purposes. It lies within the Idaho basin at 44.293°N, 115.646°W.
Key facts
- Current fill level
- 85.2%
- Water stored
- 162 hm³
- Total capacity
- 190 hm³
- 7-day change
- ▼ 1.0 pts
- Year-on-year
- ▼ 13.5 pts
- Primary use
- Multipurpose
- River basin
- Idaho
- Operator
- BOR
- Coordinates
- 44.293°N, 115.646°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 85.2% | 162 |
| 27 Jul 2026 | 86.2% | 164 |
| 26 Jul 2026 | 87.1% | 165 |
| 25 Jul 2026 | 88.0% | 167 |
| 24 Jul 2026 | 88.9% | 169 |
| 23 Jul 2026 | 89.6% | 170 |
| 22 Jul 2026 | 90.4% | 172 |
| 21 Jul 2026 | 91.1% | 173 |
| 20 Jul 2026 | 91.9% | 174 |
| 19 Jul 2026 | 92.6% | 176 |
| 18 Jul 2026 | 93.3% | 177 |
| 17 Jul 2026 | 94.1% | 179 |
Frequently asked questions
What is the current water level of Deadwood Reservoir and Dam?
As of July 28, 2026, Deadwood Reservoir and Dam is at 85.2% of its capacity, holding approximately 162 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Deadwood Reservoir and Dam reservoir full?
No. As of July 28, 2026, Deadwood Reservoir and Dam is high at 85.2% of its capacity, so it is not full.
Is the water level at Deadwood Reservoir and Dam rising or falling?
The level at Deadwood Reservoir and Dam has been broadly stable over the latest week on record (-1.0 points).
How much water can Deadwood Reservoir and Dam hold?
Deadwood Reservoir and Dam has a total capacity of 190 hm³.
Where is Deadwood Reservoir and Dam reservoir located?
Deadwood Reservoir and Dam is located in Idaho, United States, within the Idaho basin (coordinates 44.293°N, 115.646°W).
What is Deadwood Reservoir and Dam used for?
Deadwood Reservoir and Dam is used primarily for multiple purposes, and is managed by BOR.