Reservoir · Illinois · United States · USACE CWMS
Rend Pool
96.6% full
Capacity
227.79 hm³
Volume stored
220 hm³
Coordinates
38.038°N, 88.962°W
Last updated
2026-09-11
Current fill
96.6%vs 7 days ago
-0.4%losing
vs 1 year ago
N/A7-day trend
→stable
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: 2026-09-11.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.038, -88.962 · Open in Google Maps
About Rend Pool
As of September 11, 2026, Rend Pool is filled to 96.6% of its total capacity, holding roughly 220 hm³ of water out of a maximum 228 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.4 pts).
Across the readings we hold for Rend Pool — 93 data points between June 10, 2026 and September 11, 2026 — the level has ranged from a low of 95.2% (September 9, 2026) to a high of 105.0% (June 10, 2026).
It is operated by USACE primarily for multiple purposes. It lies within the Illinois basin at 38.038°N, 88.962°W.
Key facts
- Current fill level
- 96.6%
- Water stored
- 220 hm³
- Total capacity
- 228 hm³
- 7-day change
- ▼ 0.4 pts
- Primary use
- Multipurpose
- River basin
- Illinois
- Operator
- USACE
- Coordinates
- 38.038°N, 88.962°W
- Last updated
- September 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Sep 2026 | 96.6% | 220 |
| 10 Sep 2026 | 96.6% | 220 |
| 9 Sep 2026 | 95.2% | 217 |
| 8 Sep 2026 | 95.7% | 218 |
| 7 Sep 2026 | 95.9% | 219 |
| 6 Sep 2026 | 96.6% | 220 |
| 5 Sep 2026 | 96.8% | 220 |
| 4 Sep 2026 | 97.0% | 221 |
| 3 Sep 2026 | 97.2% | 222 |
| 2 Sep 2026 | 97.1% | 221 |
| 1 Sep 2026 | 97.5% | 222 |
| 31 Aug 2026 | 97.6% | 222 |