C. M. Harden Lake Water Level Today
Indiana · near Hollandsburg, IN · At full pool
- Elevation
- 662.20 ft
- From full pool
- +0.20 ft
- Percent of pool
- 100.9%
- 24-hour change
- +0.01 ft
- 7-day change
- −0.01 ft
- Reading
- Sep 21, 2026 · USACE
Last year at C. M. Harden Lake
C. M. Harden Lake is at full pool, 662.20 ft, up 0.01 ft in the last 24 hours. That puts the lake at 100.9 percent of its conservation pool. The top of the flood pool is 27.8 ft higher, at 690.00 ft.
Over the last 7 days the level held steady, and over 30 days it fell 6.33 ft. In the 400 days of readings on this page the high was 668.77 ft on Aug 25, 2026 and the low was 638.59 ft on Feb 11, 2026, a range of 30.18 ft.
The reading is the U.S. Army Corps of Engineers gauge, near Hollandsburg, IN, taken Sep 21, 2026 and referenced to the NGVD29 datum. This page is rebuilt once a day from the agency feed; it is not a live gauge, so during a fast rise or a scheduled release check the USACE page for hourly values.
C. M. Harden Lake pool elevations
| Current elevation | 662.20 ft |
|---|---|
| Full pool (top of conservation) | 662.00 ft |
| Top of flood pool | 690.00 ft |
| Bottom of conservation pool | 640.00 ft |
| Top of dam | 712.00 ft |
| Inflow | 28 cfs |
| Outflow | 22 cfs |
| 30-day change | −6.33 ft |
| 1-year high | 668.77 ft (Aug 25, 2026) |
| 1-year low | 638.59 ft (Feb 11, 2026) |
| Vertical datum | NGVD29 |
| Operating agency | U.S. Army Corps of Engineers, LRL district |
Source: U.S. Army Corps of Engineers. Read what full pool and flood pool mean.
More lakes in Indiana
- Brookville Lake 748.98 ft, +0.98 ft from full
- Salamonie Lake 763.61 ft, +8.61 ft from full
C. M. Harden Lake level questions
What is the water level of C. M. Harden Lake today?
C. M. Harden Lake is at 662.20 ft as of Sep 21, 2026, +0.20 ft relative to full pool (662.00 ft). The 24-hour change is +0.01 ft.
What is full pool at C. M. Harden Lake?
Full pool, the top of the conservation pool, is 662.00 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 690.00 ft. The bottom of the conservation pool is 640.00 ft.
Is C. M. Harden Lake rising or falling?
Over the last 24 hours the level is +0.01 ft; over 7 days it held steady, and over 30 days it fell 6.33 ft.
Where does this C. M. Harden Lake level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for C. M. Harden Lake. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.