Reservoir · Idaho · United States · BOR RISE
Deadwood Reservoir
Deadwood Reservoir and Dam
48.7% full
Capacity
189.95 hm³
Volume stored
93 hm³
Vs month average
100% of normal
Coordinates
44.293°N, 115.646°W
Last updated
2026-10-27
Current fill
48.7%vs 7 days ago
+0.6 ppgaining
vs 1 year ago
-1.2 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
100%of normal
48.7% full on 2026-10-27, against an average of 48.9% for October across 6 years of readings (-0.2 points).
Drought Monitor at this site · 20 October 2026
D0abnormally dry
The ground at Deadwood Reservoir's coordinates falls inside the D0 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Idaho drought figures →
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: 2026-10-27.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 44.293°N, 115.646°W · Open in Google Maps
About Deadwood Reservoir
As of October 27, 2026, Deadwood Reservoir is filled to 48.7% of its total capacity, holding 92.6 hm³ of water out of a maximum 189.95 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 (+0.6 pp), and it is 1.2 points below its level on the same date a year earlier.
Across the readings we hold for Deadwood Reservoir — 2187 data points between October 29, 2021 and October 27, 2026 — the level has ranged from a low of 37.4% (October 29, 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 is at 44.293°N, 115.646°W.
Key facts
- Current fill level
- 48.7% of total capacity
- Water stored
- 92.6 hm³
- Total capacity
- 189.95 hm³
- 7-day change
- ▲ 0.6 pp
- Year-on-year
- ▼ 1.2 pp
- Primary use
- Multipurpose
- Operator
- BOR
- Coordinates
- 44.293°N, 115.646°W
- Last updated
- October 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Oct 2026 | 48.7% | 92.6 |
| 26 Oct 2026 | 48.7% | 92.44 |
| 25 Oct 2026 | 48.6% | 92.29 |
| 24 Oct 2026 | 48.5% | 92.18 |
| 23 Oct 2026 | 48.4% | 92.02 |
| 22 Oct 2026 | 48.3% | 91.71 |
| 21 Oct 2026 | 48.2% | 91.47 |
| 20 Oct 2026 | 48.1% | 91.37 |
| 19 Oct 2026 | 48.0% | 91.26 |
| 18 Oct 2026 | 48.0% | 91.16 |
| 17 Oct 2026 | 47.9% | 91.05 |
| 16 Oct 2026 | 47.9% | 90.95 |