Is the St. Marys River flooding?
The St. Marys River is tracked by 4 USGS streamgauges in Indiana. This page compares each gauge’s live water level against its official National Weather Service flood stage, refreshed every 15 minutes, so you can tell whether the St. Marys River is running normal, rising toward flood stage, or already flooding. 2 of 4 gauges have both a usable water-level reading and a published minor flood stage. Gauges without a published flood stage show water level and flow only. For nearby rivers, see all Indiana river levels.
River facts
The longest-running gauge on this river is St. Marys River near Fort Wayne, IN. The highest level ever recorded there was 21.20 ft on 9 July 2003, carrying 16,000 cfs. Peak records there go back to 1931 (95 annual peaks). It is currently at 15.87 ft, 5.3 ft below that record.
| Gauge | Status | Stage | Flood stage | Updated |
|---|---|---|---|---|
| St. Marys River at Decatur, IN | Moderate flooding | 22.38 ft | 17 ft | |
| St. Marys River near Fort Wayne, IN | Minor flooding | 15.87 ft | 14 ft | |
| St. Marys River at Pleasant Mills, IN | No flood stage defined | 21.56 ft | — | |
| St. Marys River at Main St. at Fort Wayne, IN | No flood stage defined | 15.17 ft | — |