River gauges›New Jersey
RIVER GAUGE · NORTH BRANCH RARITAN RIVER

North Branch Raritan River near Raritan

Somerset County, New Jersey

Water level2.88 ft
Flow179 cfs
Last readingSep 16, 2026, 5:00 PM UTC (last recorded)
Action8 ft4,999 cfs
Minor flood10 ft
Moderate flood12 ft
Major flood15 ft

The past week

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What floods at each level

Highest crests on record

DateLevelFlow
Sep 2, 202119.52 ft33,980 cfs
Sep 15, 199918.98 ft29,000 cfs
Aug 28, 201117.97 ft40,600 cfs

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