Reservoir · Kansas · United States · USACE CWMS
Big Hill Lake
88.5% full
Capacity
33.27 hm³
Volume stored
29 hm³
Vs month average
100% of normal
Coordinates
37.270°N, 95.470°W
Last updated
2026-10-28
Current fill
88.5%vs 7 days ago
-0.3 pplosing
vs 1 year ago
N/A7-day trend
→stable
Drought context
Storage vs October average
100%of normal
88.5% full on 2026-10-28, against an average of 88.7% for October across 2 years of readings (-0.2 points).
Drought Monitor at this site · 20 October 2026
D1moderate drought
The ground at Big Hill Lake'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. Kansas 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: 2026-10-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 37.270°N, 95.470°W · Open in Google Maps
About Big Hill Lake
As of October 28, 2026, Big Hill Lake is filled to 88.5% of its total capacity, holding 29.44 hm³ of water out of a maximum 33.27 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.3 pp).
Across the readings we hold for Big Hill Lake — 330 data points between October 29, 2021 and October 28, 2026 — the level has ranged from a low of 83.4% (January 31, 2022) to a high of 100.4% (May 5, 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 is at 37.270°N, 95.470°W.
Key facts
- Current fill level
- 88.5% of total capacity
- Water stored
- 29.44 hm³
- Total capacity
- 33.27 hm³
- 7-day change
- ▼ 0.3 pp
- Primary use
- Multipurpose
- Operator
- USACE
- Coordinates
- 37.270°N, 95.470°W
- Last updated
- October 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Oct 2026 | 88.5% | 29.44 |
| 27 Oct 2026 | 88.5% | 29.45 |
| 26 Oct 2026 | 88.6% | 29.47 |
| 25 Oct 2026 | 88.7% | 29.5 |
| 24 Oct 2026 | 88.7% | 29.51 |
| 23 Oct 2026 | 88.7% | 29.52 |
| 22 Oct 2026 | 88.8% | 29.54 |
| 21 Oct 2026 | 88.8% | 29.56 |
| 20 Oct 2026 | 88.8% | 29.56 |
| 19 Oct 2026 | 88.9% | 29.59 |
| 18 Oct 2026 | 89.0% | 29.61 |
| 17 Oct 2026 | 89.1% | 29.65 |