Reservoir · Illinois · United States · USACE CWMS
Carlyle Pool
103.4% full
Capacity
287.4 hm³
Volume stored
297 hm³
Coordinates
38.618°N, 89.351°W
Last updated
2026-10-30
Current fill
103.4%vs 7 days ago
-0.8 pplosing
vs 1 year ago
N/A7-day trend
→stable
Drought context
Drought Monitor at this site · 27 October 2026
D1moderate drought
The ground at Carlyle Pool'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. Illinois 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: 2026-10-30.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.618°N, 89.351°W · Open in Google Maps
About Carlyle Pool
As of October 30, 2026, Carlyle Pool is filled to 103.4% of its total capacity, holding 297.06 hm³ of water out of a maximum 287.4 hm³. At this level the reservoir is effectively full.
Over the most recent week on record the fill level has held broadly steady (-0.8 pp).
Across the readings we hold for Carlyle Pool — 80 data points between December 2, 2021 and October 30, 2026 — the level has ranged from a low of 84.7% (February 1, 2022) to a high of 105.0% (October 12, 2026).
It is operated by USACE primarily for multiple purposes. It is at 38.618°N, 89.351°W.
Key facts
- Current fill level
- 103.4% of total capacity
- Water stored
- 297.06 hm³
- Total capacity
- 287.4 hm³
- 7-day change
- ▼ 0.8 pp
- Primary use
- Multipurpose
- Operator
- USACE
- Coordinates
- 38.618°N, 89.351°W
- Last updated
- October 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Oct 2026 | 103.4% | 297.06 |
| 29 Oct 2026 | 103.3% | 296.76 |
| 28 Oct 2026 | 103.5% | 297.37 |
| 27 Oct 2026 | 103.6% | 297.68 |
| 26 Oct 2026 | 103.8% | 298.3 |
| 25 Oct 2026 | 103.9% | 298.6 |
| 24 Oct 2026 | 104.1% | 299.22 |
| 23 Oct 2026 | 104.2% | 299.54 |
| 22 Oct 2026 | 104.4% | 300.17 |
| 21 Oct 2026 | 104.4% | 300.17 |
| 20 Oct 2026 | 104.7% | 300.8 |
| 19 Oct 2026 | 104.9% | 301.44 |