Reservoir · Indiana · United States · USACE CWMS
C. M. Harden Lake
81.5% full
Capacity
60.76 hm³
Volume stored
50 hm³
Coordinates
39.717°N, 87.072°W
Last updated
2026-10-29
Current fill
81.5%vs 7 days ago
-14.1 pplosing
vs 1 year ago
N/A7-day trend
↓falling
Drought context
Drought Monitor at this site · 27 October 2026
D1moderate drought
The ground at C. M. Harden 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. Indiana 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: 2026-10-29.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.717°N, 87.072°W · Open in Google Maps
About C. M. Harden Lake
As of October 29, 2026, C. M. Harden Lake is filled to 81.5% of its total capacity, holding 49.52 hm³ of water out of a maximum 60.76 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has fallen by 14.1 percentage points.
Across the readings we hold for C. M. Harden Lake — 160 data points between November 12, 2021 and October 29, 2026 — the level has ranged from a low of 33.0% (February 7, 2022) to a high of 105.0% (May 1, 2022). On average the reservoir is fullest around May and at its lowest around December.
It is operated by USACE primarily for multiple purposes. It is at 39.717°N, 87.072°W.
Key facts
- Current fill level
- 81.5% of total capacity
- Water stored
- 49.52 hm³
- Total capacity
- 60.76 hm³
- 7-day change
- ▼ 14.1 pp
- Primary use
- Multipurpose
- Operator
- USACE
- Coordinates
- 39.717°N, 87.072°W
- Last updated
- October 29, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 29 Oct 2026 | 81.5% | 49.52 |
| 28 Oct 2026 | 82.3% | 50.03 |
| 27 Oct 2026 | 84.2% | 51.16 |
| 26 Oct 2026 | 86.2% | 52.37 |
| 25 Oct 2026 | 88.4% | 53.73 |
| 24 Oct 2026 | 90.8% | 55.17 |
| 23 Oct 2026 | 93.2% | 56.62 |
| 22 Oct 2026 | 95.6% | 58.09 |
| 21 Oct 2026 | 98.1% | 59.58 |
| 20 Oct 2026 | 100.5% | 61.09 |
| 19 Oct 2026 | 102.6% | 62.36 |
| 18 Oct 2026 | 103.3% | 62.79 |