at Ryerson

Highest listed crest 17.00 ftFlood stage 12.0 ft1 crests since 2007

The at Ryerson crested at major flood stage 1 time among the 1 crests the National Weather Service lists from 2007 to 2007. The highest, 17.00 ft on April 16, 2007, was major flooding, 5.00 feet above flood stage.

The gauge

Highest listed crest: 17.00 ft; April 16, 2007
Flood stage: 12.0 ft; Major flooding from 15.5 ft
Crests at major: 1; 68th of 125 gauges in New Jersey
Most recent flood crest: April 16, 2007; 17.00 ft, major flooding
Location: Morris County; Near Lincoln Park (0.8 mi), Totowa (3.9 mi), Pompton Lakes (5.4 mi)
Identifiers: NWS RRLN4; Out of service

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, at Ryerson

Action stage	11.5	0	—	The level at which the NWS or its partners begin to take action
Flood stage (minor)	12.0	0	—	Minimal or no property damage, but possibly some public threat
Moderate flood stage	13.0	0	—	Some inundation of structures and roads near the stream
Major flood stage	15.5	1	Apr 16, 2007	Extensive inundation of structures and roads

Every listed crest

1 crests from 2007 to 2007. Filled: at or above flood stage. Hover a crest for its date and stage.

These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, at Ryerson

1	Apr 16, 2007	17.00	+5.00	Major	—

Other gauges in Morris County

Flood gauges in Morris County

Picatinny	3.0	3.84 ft, Aug 28, 2011	0
Pottersville	4.5	5.94 ft, Jul 7, 1984	0
Chatham	6.0	9.36 ft, Aug 2, 1973	0
Pine Brook	19.0	24.12 ft, Aug 30, 2011	13
Boonton above reservoir	4.5	4.71 ft, Dec 18, 2023	0
Boonton below reservoir	5.0	9.73 ft, Aug 29, 2011	7
Morristown	6.0	9.60 ft, Aug 28, 2011	4
Pine Brook	9.0	12.54 ft, Aug 30, 2011	0
at Midwood	7.5	15.20 ft, Apr 16, 2007	1

Morris County: every hazard · River floods across the country · New Jersey

NOAA National Water Prediction Service, gauge RRLN4, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.