Susquehanna River at Marietta, PA

Lancaster County, Pennsylvania · USGS gauge 01576000 · NWS MRTP1 · Susquehanna River flood status · Pennsylvania river levels

Nearby: river levels near Marietta

Is Susquehanna River at Marietta, PA flooding right now?

Susquehanna River at Marietta, PA measured 35.84 ft on 2026-09-11 00:30:00 UTC. That observation was 13.2 ft below its 49 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
35.84 ft
as of 2 hours ago
Streamflow
24,000 cfs
data refreshed 9 min ago

Minor flooding here begins at 49 ft, with major flooding at 54 ft. The highest crest on record was 64.54 ft on Fri, Jun 23, 1972.

Flood forecast

NWS forecast, issued 12 hours ago. Forecasts are issued for select river points and update through the day.

Flood stages at this gauge

CategoryStageCurrent distance
Action44 ft8.2 ft below
Minor flood49 ft13.2 ft below
Moderate flood52 ft16.2 ft below
Major flood54 ft18.2 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
64.54 ft1972-06-23
60.73 ft1936-03-19
58.3 ft1889-06-02
58.16 ft2011-09-09
56.8 ft1996-01-21

Last 7 days

Past 7 days · 35.60–39.36 ft

Nearby gauges

GaugeDistanceCounty
Chiques Creek near Marietta, PA1.0 miLancaster County
Kreutz Creek at Strickler, PA2.9 miYork County
Codorus Creek near Saginaw, PA6.5 miYork County
Fishing Creek at Craley, PA7.9 miYork County
Codorus Creek at Pleasureville, PA8.9 miYork County
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast