Reservoir · South Dakota · United States · USACE CWMS
Shadehill Dam & Reservoir
32.7% full
Capacity
363.9 hm³
Volume stored
119 hm³
Coordinates
45.753°N, 102.203°W
Last updated
2026-07-29
Current fill
32.7%vs 7 days ago
0.0%stable
vs 1 year ago
-1.8%year-over-year
7-day trend
→stable
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-07-29.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 45.753, -102.203 · Open in Google Maps
About Shadehill Dam & Reservoir
As of July 29, 2026, Shadehill Dam & Reservoir is filled to 32.7% of its total capacity, holding roughly 119 hm³ of water out of a maximum 364 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 1.8 points below its level on the same date a year earlier.
Across the readings we hold for Shadehill Dam & Reservoir — 1815 data points between July 31, 2021 and July 29, 2026 — the level has ranged from a low of 24.1% (February 23, 2022) to a high of 100.0% (December 25, 2022). On average the reservoir is fullest around June and at its lowest around February.
It is operated by USACE primarily for multiple purposes. It lies within the South Dakota basin at 45.753°N, 102.203°W.
Key facts
- Current fill level
- 32.7%
- Water stored
- 119 hm³
- Total capacity
- 364 hm³
- 7-day change
- No change
- Year-on-year
- ▼ 1.8 pts
- Primary use
- Multipurpose
- River basin
- South Dakota
- Operator
- USACE
- Coordinates
- 45.753°N, 102.203°W
- Last updated
- July 29, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 29 Jul 2026 | 32.7% | 119 |
| 28 Jul 2026 | 32.7% | 119 |
| 27 Jul 2026 | 32.8% | 119 |
| 26 Jul 2026 | 32.8% | 119 |
| 25 Jul 2026 | 32.9% | 120 |
| 24 Jul 2026 | 32.9% | 120 |
| 23 Jul 2026 | 33.0% | 120 |
| 22 Jul 2026 | 33.0% | 120 |
| 21 Jul 2026 | 33.1% | 120 |
| 20 Jul 2026 | 33.1% | 120 |
| 19 Jul 2026 | 33.2% | 121 |
| 18 Jul 2026 | 33.2% | 121 |
Frequently asked questions
What is the current water level of Shadehill Dam & Reservoir?
As of July 29, 2026, Shadehill Dam & Reservoir is at 32.7% of its capacity, holding approximately 119 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Shadehill Dam & Reservoir reservoir full?
No. As of July 29, 2026, Shadehill Dam & Reservoir is low at 32.7% of its capacity, so it is not full.
Is the water level at Shadehill Dam & Reservoir rising or falling?
The level at Shadehill Dam & Reservoir has been broadly stable over the latest week on record (0.0 points).
How much water can Shadehill Dam & Reservoir hold?
Shadehill Dam & Reservoir has a total capacity of 364 hm³.
Where is Shadehill Dam & Reservoir reservoir located?
Shadehill Dam & Reservoir is located in South Dakota, United States, within the South Dakota basin (coordinates 45.753°N, 102.203°W).
What is Shadehill Dam & Reservoir used for?
Shadehill Dam & Reservoir is used primarily for multiple purposes, and is managed by USACE.