How high is the Grand Calumet River at Columbia Av at Hammond, IN right now?

The Grand Calumet River at Columbia Av at Hammond, IN is currently flowing at 47 cubic feet per second with a gage height of 6.38 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Grand Calumet River at Columbia Av at Hammond, IN normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 52th percentile compared to the long-term historical record at this gauge.

Is the Grand Calumet River at Columbia Av at Hammond, IN at flood stage?

No — the gage height is 3.12 feet below the NWS flood-stage threshold of 9.5 feet.

What is the historical median flow for the Grand Calumet River at Columbia Av at Hammond, IN on June 11?

The long-term median discharge for this date is 45 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 0 to unavailable cfs.

Where is the Grand Calumet River at Columbia Av at Hammond, IN stream gauge located?

The Grand Calumet River at Columbia Av at Hammond, IN stream gauge is operated by the USGS in Lake County, IN on the Grand Calumet River. USGS site number 05536356 (coordinates 41.6186, -87.4998).

Grand Calumet River at Columbia Av at Hammond, IN

USGS Site No: 05536356 • Grand Calumet River • Lake County, IN

Grand Calumet River at Columbia Av at Hammond, IN on the Grand Calumet River is currently at 47 cfs (Normal — 52th percentile for this date) . Gage height: 6.38 ft.

Reading from 1 week ago

CFS Discharge

6.38

Gage Height (ft)

Normal

Flow Condition

Normal

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile	Label	CFS Threshold	Today's Flow
10th	Very Low threshold	0
25th	Low threshold	17
50th (Median)	Normal (median)	45
75th	High threshold	72	Today: 47 cfs
95th	Very High threshold	0

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	59	6.61
May 27, 2026	51	6.42
May 26, 2026	45	6.34
May 25, 2026	47	6.38
May 24, 2026	58	6.66
May 23, 2026	61	6.66
May 22, 2026	62	6.67
May 21, 2026	62	6.61
May 20, 2026	57	6.47
May 19, 2026	46	6.28
May 18, 2026	50	6.43
May 17, 2026	48	6.33
May 16, 2026	47	6.21
May 15, 2026	45	6.14
Apr 21, 2026	47	5.97
Apr 20, 2026	46	5.94
Apr 19, 2026	46	5.99
Apr 18, 2026	47	6.10
Apr 17, 2026	44	5.98
Apr 16, 2026	48	6.09
Apr 15, 2026	45	6.03
Apr 14, 2026	47	5.94
Apr 13, 2026	39	5.67
Apr 12, 2026	37	5.60
Apr 11, 2026	40	5.73
Apr 10, 2026	43	5.76
Apr 9, 2026	39	5.62
Apr 8, 2026	34	5.52
Apr 7, 2026	41	5.71
Apr 6, 2026	37	5.71

Station Information

USGS Site No: 05536356
State: IN
County: Lake County
Coordinates: 41.6186, -87.4998
Datum (ft): 573.9
HUC Code: 07120003

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 8.0 ft
Flood Stage: 9.5 ft
Moderate Flood: 12.0 ft
Major Flood: 13.0 ft

Currently 3.12 ft below flood stage.

Recent Extremes

Max discharge: 62 cfs

May 22, 2026
Min discharge: -13 cfs

Aug 19, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Little Calumet River at South Holland, IL
5.1 mi · 51 cfs

Low
Lansing Ditch Near Lansing, IL
6.4 mi · 0 cfs

Very Low
Thorn Creek at Thornton, IL
6.6 mi · 41 cfs

Normal
Deer Creek Near Chicago Heights, IL
8.2 mi · 5 cfs

Normal
Calumet Union Drainage Canal Near Markham, IL
8.7 mi · 13 cfs

Very High