Mazon River near Coal City, IL
Is Mazon River near Coal City, IL flooding right now?
Mazon River near Coal City, IL measured 1.93 ft on 2026-09-22 20:45:00 UTC. That observation was 10.1 ft below its 12 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
1.93 ft
Streamflow
131 cfs
Minor flooding here begins at 12 ft, with major flooding at 19 ft. The highest crest on record was 21 ft on Fri, Aug 8, 1924.
Streamflow outlook
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 10 ft | 8.1 ft below |
| Minor flood | 12 ft | 10.1 ft below |
| Moderate flood | 16 ft | 14.1 ft below |
| Major flood | 19 ft | 17.1 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 21 ft | 1924-08-08 |
| 19.7 ft | 1958-07-15 |
| 19.51 ft | 1982-12-04 |
| 18.83 ft | 1990-11-28 |
| 18.54 ft | 2008-09-15 |
Last 7 days
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Illinois River at Morris, IL | 5.9 mi | Grundy County |
| Hanson Gravel Pit at Culvert near Morris, IL | 6.4 mi | Grundy County |
| Kankakee River at Inflow of Power Plant near Lorenzo, IL | 8.7 mi | Grundy County |
| Aux Sable Creek near Morris, IL | 9.0 mi | Grundy County |
| Kankakee River near Wilmington, IL | 9.9 mi | Will County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.