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Delaware River at Riegelsville — water level right now

Hunterdon County, New Jersey · NWS gauge RGLN4
Loading the latest reading…
–
current stage (ft)
 
22
minor flood stage
 
38.85
record crest
set 1955-08-20
–
flood status
official NWS category
Official NOAA forecast → USGS data → Full US flood map →

Flood stages at this gauge

Where the water stands right now against the four official thresholds:

action · 15
minor · 22
moderate · 26
major · 30
Flood stageLevel (ft)What it means
Major flood stage30extensive inundation and significant evacuations — a serious event
Moderate flood stage26some buildings and roads inundated; evacuations possible
Minor flood stage22low-lying roads and fields near the river start to flood
Action stage15water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
138.851955-08-20+16.85 above
235.91903-10-10+13.9 above
334.072005-04-03+12.07 above
433.622006-06-29+11.62 above
532.451936-03-19+10.45 above
630.952004-09-19+8.95 above
728.721996-01-20+6.72 above
828.062011-09-09+6.06 above
927.51942-05-24+5.5 above
1026.471940-04-01+4.47 above
1125.41952-12-12+3.4 above
1225.22011-03-12+3.2 above

Historic crests recorded at this gauge by the National Weather Service — the 12 highest on file.

Where this gauge is

The marker is this gauge; nearby gauges load live and are clickable.

Nearby river gauges

Delaware River at Frenchtown 8 mi away · loading… Musconetcong River at Bloomsbury 9 mi away · loading… Mulhockaway Creek at Clinton 12 mi away · loading… Spruce Run at Clinton 15 mi away · loading… Spruce Run at Glen Gardner 15 mi away · loading… Delaware River at Belvidere 17 mi away · loading…

Gauge details

NWS gauge IDRGLN4
USGS site01457500
CountyHunterdon
StateNew Jersey
NWS forecast officeMount Holly
River forecast centerMiddle Atlantic River Forecast Center
Coordinates40.595, -75.19
Time zoneEST5EDT
Turn Around, Don't Drown. Six inches of moving water can knock you off your feet and twelve inches can float a car. Never drive around barricades or into water of unknown depth — most flood deaths happen in vehicles.

Questions about Delaware River at Riegelsville

Is Delaware River at Riegelsville flooding right now?

The live reading at the top of this page answers that: the gauge is compared against its official NWS flood stages every 15 minutes. Minor flooding at this gauge begins at 22 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Delaware River at Riegelsville?

major flood stage 30 ft, moderate flood stage 26 ft, minor flood stage 22 ft, action stage 15 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Delaware River at Riegelsville?

The highest crest on file at this gauge is 38.85 ft, reached on 1955-08-20 — that is 16.85 ft above minor flood stage. The full list of the highest crests is in the table on this page.

Where does this data come from?

From the NOAA National Water Prediction Service, the official U.S. river gauge network — a U.S. government work in the public domain. Live stage is refreshed every 15 minutes; flood thresholds and historic crests are refreshed monthly. For life-safety decisions follow NWS Mount Holly and local emergency management.