How high is the Chicago Sanitary And Ship Canal at Romeoville, IL right now?

The Chicago Sanitary And Ship Canal at Romeoville, IL is currently flowing at 0 cubic feet per second with a gage height of 24.95 feet, based on the most recent USGS instantaneous reading.

Is the Chicago Sanitary And Ship Canal at Romeoville, IL at flood stage?

No — the gage height is 5.05 feet below the NWS flood-stage threshold of 30.0 feet.

What is the historical median flow for the Chicago Sanitary And Ship Canal at Romeoville, IL on June 11?

The long-term median discharge for this date is 3,790 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 2,730 to 7,520 cfs.

Where is the Chicago Sanitary And Ship Canal at Romeoville, IL stream gauge located?

The Chicago Sanitary And Ship Canal at Romeoville, IL stream gauge is operated by the USGS in Will County, IL on the Chicago Sanitary and Ship Canal. USGS site number 05536995 (coordinates 41.6400, -88.0600).

Chicago Sanitary And Ship Canal at Romeoville, IL

USGS Site No: 05536995 • Chicago Sanitary and Ship Canal • Will County, IL

Chicago Sanitary And Ship Canal at Romeoville, IL on the Chicago Sanitary and Ship Canal is currently at 0 cfs (Unknown) . Gage height: 24.95 ft.

Reading from 1 month ago

↑ Upstream on Chicago Sanitary and Ship Canal

Chicago Sanitary And Ship Canal near Lemont, IL

CFS Discharge

24.95

Gage Height (ft)

Unknown

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
10th	Very Low threshold	2,730
25th	Low threshold	3,030
50th (Median)	Normal (median)	3,790
75th	High threshold	5,000
95th	Very High threshold	7,520

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)
Feb 10, 2026	—	25.13
Feb 9, 2026	—	25.12
Feb 8, 2026	—	25.02
Feb 7, 2026	—	25.06
Feb 6, 2026	—	25.29
Feb 5, 2026	—	24.96
Feb 4, 2026	—	24.97
Feb 3, 2026	—	25.00
Feb 2, 2026	—	25.03
Feb 1, 2026	—	25.03
Jan 31, 2026	—	25.04
Jan 30, 2026	—	25.01
Jan 29, 2026	—	24.93
Jan 28, 2026	—	24.83
Jan 27, 2026	—	24.84
Jan 26, 2026	—	24.98
Jan 25, 2026	—	24.91
Jan 24, 2026	—	25.19
Jan 23, 2026	—	25.28
Jan 22, 2026	—	25.02
Jan 21, 2026	—	24.94
Jan 20, 2026	—	25.02
Jan 19, 2026	—	24.99
Jan 18, 2026	—	24.81
Jan 17, 2026	—	25.09
Jan 16, 2026	—	25.18
Jan 15, 2026	—	24.83
Jan 14, 2026	—	24.91
Jan 13, 2026	—	25.14
Jan 12, 2026	—	24.97

Station Information

USGS Site No: 05536995
State: IL
County: Will County
Coordinates: 41.6400, -88.0600
Drainage Area: 739 mi²
Datum (ft): 551.8
HUC Code: 07120004

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 29.0 ft
Flood Stage: 30.0 ft

Currently 5.05 ft below flood stage.

Nearby Gauges

Des Plaines River Near Lemont, IL
2.8 mi · 452 cfs

Normal
Long Run Near Lemont, IL
3.1 mi · 3 cfs

Low
Chicago Sanitary And Ship Canal near Lemont, IL
6.1 mi · 1,300 cfs

Very Low
Sawmill Creek Near Lemont, IL
6.9 mi · 1 cfs

Low
Des Plaines River at Route 53 at Joliet, IL
7.3 mi · 847 cfs

Very Low