River gauges›New Jersey
RIVER GAUGE · DELAWARE RIVER

Delaware River at Trenton

Mercer County, New Jersey

Water level9.07 ft
Flow5,400 cfs
Last readingSep 16, 2026, 4:15 PM UTC (last recorded)
Action17 ft60,900 cfs
Minor flood20 ft
Moderate flood23 ft
Major flood25 ft

The past week

Loading chart…

What floods at each level

Highest crests on record

DateLevelFlow
Mar 7, 190430.6 ft—
Aug 19, 195528.6000003814697 ft329,000 cfs
Oct 10, 190328.5 ft295,000 cfs

Flood map

See which streets and areas flood at each water level here. Open the flood map ↗

More on Delaware River

Get an alert when Delaware River rises

Save this gauge in the free StormCast app and pick the level that matters to you. Your phone goes off when the water gets there.

A river gauge in the StormCast app

← All New Jersey gauges · Search another river