TornadoLiveMap

Manalapan Brook at Spotswood — water level right now

Middlesex County, New Jersey · NWS gauge SPTN4
Loading the latest reading…
–
current stage (ft)
 
19
minor flood stage
 
22.22
record crest
set 2011-08-28
–
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 · 18.5
minor · 19
moderate · 21
major · 22
Flood stageLevel (ft)What it means
Major flood stage22extensive inundation and significant evacuations — a serious event
Moderate flood stage21some buildings and roads inundated; evacuations possible
Minor flood stage19low-lying roads and fields near the river start to flood
Action stage18.5water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
122.222011-08-28+3.22 above
220.422005-07-18+1.42 above
320.312014-05-01+1.31 above
420.082007-04-16+1.08 above
519.971989-09-20+0.97 above
619.91968-05-30+0.9 above
719.872010-03-14+0.87 above
819.81971-08-28+0.8 above
919.621984-05-31+0.62 above
1019.462018-05-28+0.46 above
1119.352018-11-26+0.35 above
1219.292023-12-19+0.29 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

Lawrence Brook at Weston Mills 7 mi away · loading… Deep Run at Old Bridge 8 mi away · loading… Arthur Kill at Perth Amboy (IN MLLW) 10 mi away · loading… Big Brook at Marlboro 10 mi away · loading… Millstone River at Blackwells Mills 11 mi away · loading… Millstone River at Griggstown 12 mi away · loading…

Gauge details

NWS gauge IDSPTN4
USGS site01405400
CountyMiddlesex
StateNew Jersey
NWS forecast officeMount Holly
River forecast centerMiddle Atlantic River Forecast Center
Coordinates40.389, -74.391
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 Manalapan Brook at Spotswood

Is Manalapan Brook at Spotswood 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 19 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Manalapan Brook at Spotswood?

major flood stage 22 ft, moderate flood stage 21 ft, minor flood stage 19 ft, action stage 18.5 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Manalapan Brook at Spotswood?

The highest crest on file at this gauge is 22.22 ft, reached on 2011-08-28 — that is 3.22 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.