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
2026-07-30
Current fill
105.0%vs 7 days ago
0.0%stable
vs 1 year ago
0.0%year-over-year
7-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: 2026-07-30.
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 July 30, 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), and it sits close to where it was a year earlier.
Across the readings we hold for C. M. Harden Lake — 327 data points between August 1, 2021 and July 30, 2026 — the level has ranged from a low of 33.0% (February 7, 2022) to a high of 105.0% (October 16, 2021). On average the reservoir is fullest around June and at its lowest around December.
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
- Year-on-year
- No change
- Primary use
- Multipurpose
- River basin
- Indiana
- Operator
- USACE
- Coordinates
- 39.717°N, 87.072°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 105.0% | 64 |
| 29 Jul 2026 | 105.0% | 64 |
| 28 Jul 2026 | 105.0% | 64 |
| 27 Jul 2026 | 105.0% | 64 |
| 26 Jul 2026 | 105.0% | 64 |
| 25 Jul 2026 | 105.0% | 64 |
| 24 Jul 2026 | 105.0% | 64 |
| 23 Jul 2026 | 105.0% | 64 |
| 22 Jul 2026 | 105.0% | 64 |
| 21 Jul 2026 | 105.0% | 64 |
| 20 Jul 2026 | 105.0% | 65 |
| 19 Jul 2026 | 105.0% | 64 |
Frequently asked questions
What is the current water level of C. M. Harden Lake?
As of July 30, 2026, C. M. Harden Lake is at 105.0% of its capacity, holding approximately 64 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is C. M. Harden Lake reservoir full?
C. M. Harden Lake is essentially full, sitting at 105.0% of capacity as of July 30, 2026.
Is the water level at C. M. Harden Lake rising or falling?
The level at C. M. Harden Lake has been broadly stable over the latest week on record (0.0 points).
How much water can C. M. Harden Lake hold?
C. M. Harden Lake has a total capacity of 61 hm³.
Where is C. M. Harden Lake reservoir located?
C. M. Harden Lake is located in Indiana, United States, within the Indiana basin (coordinates 39.717°N, 87.072°W).
What is C. M. Harden Lake used for?
C. M. Harden Lake is used primarily for multiple purposes, and is managed by USACE.