Grand Calumet River At Industrial Hwy At Gary, In Realtime Data
GRAND CALUMET RIVER AT INDUSTRIAL HWY AT GARY, IN
Realtime Data • Report • Conditions
502
Discharge (cfs)
2.8
Gauge Height (ft)
USGS 04092677
Streamflow discharge was last observed at 502 cfs, and a gauge height of 2.77 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 557 .
Weather today, Tomorrow,
The river is heavily polluted with industrial waste from steel mills, oil refineries, and other industries. The main constituents in the river are heavy metals such as lead, mercury, and chromium. There are several tributaries that contribute to the pollution, including the Indiana Harbor Canal and the Little Calumet River. The river is also home to several dams, including the Indiana Harbor Dam and the Grand Calumet Dam. Due to its poor water quality, the river is not suitable for recreational activities.
September 4, 2026
| Elevation | 591.0 ft |
| Last Updated | |
| Mean water velocity for discharge computation, feet per second | 1.36 ft/sec |
| Gage height, ft | 2.77 ft |
| Stream water level elevation above NGVD 1929, in ft | 582.77 ft |
| Stream water level elevation above NAVD 1988, in ft | 582.42 ft |
| Streamflow, ft³/s | 502.0 ft3/s |
| Dissolved oxygen, water, unfiltered, mg/L | 6.6 mg/l |
| Temperature, water, degC | 24.4 deg C |
| Percent of Normal | 93% |
| Year Over Year Average | 542 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 1,200 cfs |
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