Reservoir · Indiana · United States · USACE CWMS
C. M. Harden Lake
105.0% full
Capacity
60.76 hm³
Volume stored
64 hm³
Coordinates
39.717°N, 87.072°W
Last updated
2026-09-14
Current fill
105.0%vs 7 days ago
0.0%stable
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: 2026-09-14.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.717, -87.072 · Open in Google Maps
About C. M. Harden Lake
As of September 14, 2026, C. M. Harden Lake is filled to 105.0% of its total capacity, holding roughly 64 hm³ of water out of a maximum 61 hm³. At this level the reservoir is effectively full.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts).
Across the readings we hold for C. M. Harden Lake — 121 data points between May 17, 2026 and September 14, 2026 — the level has ranged from a low of 104.3% (July 10, 2026) to a high of 105.0% (May 17, 2026).
It is operated by USACE primarily for multiple purposes. It lies within the Indiana basin at 39.717°N, 87.072°W.
Key facts
- Current fill level
- 105.0%
- Water stored
- 64 hm³
- Total capacity
- 61 hm³
- 7-day change
- No change
- Primary use
- Multipurpose
- River basin
- Indiana
- Operator
- USACE
- Coordinates
- 39.717°N, 87.072°W
- Last updated
- September 14, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 14 Sep 2026 | 105.0% | 64 |
| 13 Sep 2026 | 105.0% | 64 |
| 12 Sep 2026 | 105.0% | 64 |
| 11 Sep 2026 | 105.0% | 64 |
| 10 Sep 2026 | 105.0% | 64 |
| 9 Sep 2026 | 105.0% | 64 |
| 8 Sep 2026 | 105.0% | 65 |
| 7 Sep 2026 | 105.0% | 67 |
| 6 Sep 2026 | 105.0% | 69 |
| 5 Sep 2026 | 105.0% | 72 |
| 4 Sep 2026 | 105.0% | 75 |
| 3 Sep 2026 | 105.0% | 77 |