MEDIAN FLOW RATE · 1 YEAR
338cfs 18.4% vs avg
Optimal band: 594–804 cfs
PERIOD HIGH
8,334cfs
PERIOD LOW
186cfs
RUNNABLE
17%
last 1 year in band
Gauge Height
5.76ft
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Your History · Grand River at Portland, MI
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Station Location
42.8564, -84.9122Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-10-17 00:00 UTC
Site #04114000·USGS
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