Sluice Creek at S. Dennis (IN MLLW)

Highest listed crest 10.08 ftFlood stage 7.1 ft5 crests since 1985

The Sluice Creek at S. Dennis (IN MLLW) crested at major flood stage 2 times among the 5 crests the National Weather Service lists from 1985 to 2026. The highest, 10.08 ft on September 27, 1985, was major flooding, 2.98 feet above flood stage.

The gauge

Highest listed crest: 10.08 ft; September 27, 1985
Flood stage: 7.1 ft; Major flooding from 9.1 ft
Crests at major: 2; 49th of 125 gauges in New Jersey
Most recent flood crest: September 27, 2026; 8.14 ft, moderate flooding
Location: Cape May County; Near Ocean City (14.5 mi)
Identifiers: NWS SDNN4; USGS 01411435

Flood stages

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

Flood categories, Sluice Creek at S. Dennis (IN MLLW)

Flood stage (minor)	7.1	1	Dec 17, 2020	Minimal or no property damage, but possibly some public threat
Moderate flood stage	8.1	2	Sep 27, 2026	Some inundation of structures and roads near the stream
Major flood stage	9.1	2	Oct 30, 2012	Extensive inundation of structures and roads

Every listed crest

5 crests from 1985 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Crests at or above flood stage, by decade

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, Sluice Creek at S. Dennis (IN MLLW)

1	Sep 27, 1985	10.08	+2.98	Major	—
2	Oct 30, 2012	9.49	+2.39	Major	—
3	Aug 21, 2025	8.18	+1.08	Moderate	—
4	Sep 27, 2026	8.14	+1.04	Moderate	—
5	Dec 17, 2020	7.16	+0.06	Minor	—

Other gauges in Cape May County

Flood gauges in Cape May County

Cape May Harbor (IN MLLW)	6.2	9.36 ft, Jan 23, 2016	3
Delaware Bay at Cape May (IN MLLW)	6.7	8.98 ft, Jan 23, 2016	3
Stone Harbor (IN MLLW)	6.1	9.39 ft, Oct 29, 2012	4
Great Egg Harbor Bay at Ocean City (IN MLLW)	5.3	9.95 ft, Dec 11, 1992	4
Avalon (IN MLLW)	6.0	9.68 ft, Oct 29, 2012	3
Sea Isle City (IN MLLW)	5.7	9.91 ft, Oct 29, 2012	5
Tuckahoe	6.0	9.09 ft, Aug 22, 1997	0

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

NOAA National Water Prediction Service, gauge SDNN4, 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.