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Monongahela River at Maxwell Lock and Dam (lower pool) — water level right now

Fayette County, Pennsylvania · NWS gauge MAXP1
Loading the latest reading…
–
current stage (ft)
 
32
minor flood stage
 
44.4
record crest
set 1985-11-05
–
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 · 23.5
minor · 32
moderate · 34
major · 36
Flood stageLevel (ft)What it means
Major flood stage36extensive inundation and significant evacuations — a serious event
Moderate flood stage34some buildings and roads inundated; evacuations possible
Minor flood stage32low-lying roads and fields near the river start to flood
Action stage23.5water is approaching flood level — time to pay attention

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
144.41985-11-05+12.4 above
238.21967-03-07+6.2 above
3381963-03-05+6 above
437.81996-01-20+5.8 above
536.52000-02-19+4.5 above
635.41963-03-20+3.4 above
733.322017-07-30+1.32 above
832.61972-06-24+0.6 above
932.51968-05-25+0.5 above
1032.31994-02-10+0.3 above
1131.42003-11-200.6 below
1231.31978-01-260.7 below

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

Tenmile Creek above Jefferson 8 mi away · loading… Monongahela River at Charleroi Lock and Dam 11 mi away · loading… Monongahela River at Grays Landing Lock and Dam 12 mi away · loading… Dunkard Creek at Shannopin 17 mi away · loading… Youghiogheny River at Sutersville 18 mi away · loading… Monongahela River at Point Marion Lock and Dam (lower pool) 19 mi away · loading…

Gauge details

NWS gauge IDMAXP1
USGS site03073751
CountyFayette
StatePennsylvania
NWS forecast officeMoon Township
River forecast centerOhio River Forecast Center
Coordinates40.002, -79.961
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 Monongahela River at Maxwell Lock and Dam (lower pool)

Is Monongahela River at Maxwell Lock and Dam (lower pool) 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 32 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Monongahela River at Maxwell Lock and Dam (lower pool)?

major flood stage 36 ft, moderate flood stage 34 ft, minor flood stage 32 ft, action stage 23.5 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Monongahela River at Maxwell Lock and Dam (lower pool)?

The highest crest on file at this gauge is 44.4 ft, reached on 1985-11-05 — that is 12.4 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 Moon Township and local emergency management.