Waterlands
St. Marys River
USGS · 04181500
ST. MARYS RIVER
USGS · 04181500LIVE

ST. MARYS RIVER AT DECATUR, IN

DECATUR, IN40.8481°N, -84.9377°W Updated 39 min ago
FLOW RATE
70cfs
GAUGE HT
3.25ft
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
70cfs 81.2% vs avg
Optimal band: 60–81 cfs
PERIOD HIGH
77.5cfs
PERIOD LOW
67.3cfs
RUNNABLE
100%
last 1 day in band

Gauge Height

3.25ft
Precipitation History
Your History · ST. MARYS RIVER AT DECATUR, IN

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Station Location

40.8481, -84.9377
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DATA · USGS · NOAA · NWSUPDATED 2026-07-07 22:00 UTC
Site #04181500·USGS

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