Monongahela River near Masontown water level

Name: Monongahela River near Masontown water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Monongahela River, Pennsylvania, United States

Directions

Below flood stage

Water level

12.57ft Down 0.29 ft over the last 24 hours

Measured Oct 19, 2026, 12:30 PM EDT (21 min ago)

Flow: 13,300 cfs
Water temperature: 62 °F

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to rise to 12.90 ft by Monday, October 19 at 08:00 PM. Issued Sunday, October 18 at 08:43 AM by NOAA National Weather Service.

What this means

The Monongahela River near Masontown is at 12.57 ft, in the normal range.

It is 8.43 ft below the flood stage of 21.00 ft.

It has dropped 0.29 ft over the past 24 hours. The forecast expects the river to rise to 12.90 ft by Monday, October 19 at 08:00 PM. In the last month it has stayed between 11.86 ft and 13.55 ft.

The sensor also reports a water temperature of 62 °F.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 36.00 ftJuly 1, 1888
Forecast peak: 12.90 ftMonday, October 19 at 08:00 PM

Floating and fishing near Monongahela River near Masontown

Normal flows mean predictable rapids and good access at most put-ins.

Flood stage here is 21.00 ft, 8.43 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

36.00 ft: Water reaches the flood of record...July 1, 1888.
35.00 ft: Flood waters reach the historic log cabin along Front Street in Greensboro.
34.00 ft: Flood waters reach the corner of Front and County Streets in Greensboro.
31.00 ft: Flood waters reach the Bed and Breakfast on County Street in Greensboro.
30.50 ft: Water reaches level of the November 5, 1985 flood.
28.40 ft: Water reaches the level of the St. Patricks Day Flood and crest on March 18, 1936.
25.80 ft: Water reaches the level reached during the rain and snowmelt flood on January 20, 1996.
25.00 ft: Flood waters reach Martin Ferry Road in the village of Glasworks.
24.00 ft: The lock walls are overtopped at Grays Landing Lock and Dam.
23.95 ft: Water levels reach the flood levels of the flood of July 29, 2017.
22.78 ft: Water reaches the level reached on March 4, 2015.
21.00 ft: The lock at Grays Landing Lock and Dam goes out of service, and navigation is suspended.
12.57 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: 15 %.

Rank	Level	Date
1	36.00 ft	July 1, 1888
2	30.50 ft	November 5, 1985
3	28.40 ft	March 18, 1936
4	25.80 ft	January 20, 1996
5	24.50 ft	February 19, 2000
6	23.95 ft	July 29, 2017
7	22.78 ft	March 4, 2015
8	22.07 ft	February 17, 2018
9	21.77 ft	March 1, 2021
10	21.70 ft	December 14, 2007

Weather at the gauge

No rain in the last 3 days.

19 Mon 65° 37° – Wind 7 mph

20 Tue 66° 39° – Wind 10 mph

21 Wed 66° 43° – Wind 6 mph

22 Thu 63° 40° – Wind 6 mph

23 Fri 67° 42° – Wind 8 mph

24 Sat 66° 43° – Wind 8 mph

25 Sun 65° 40° – Wind 4 mph

Forecast: Open-Meteo

Sunrise 07:35 AM Sunset 06:36 PM Daylight 11 hr, 1 min First quarter 60%

Map

Other gauges on the Monongahela River

Gauge	Level	Compared with normal	24 hours	Distance
Monongahela River at Opekiska Lock & Dam (Upper)River gauge, Monongahela River	9.48 ft	No reference yet	+0.15 ft	19 mi
Monongahela River at Opekiska Lock & Dam (Lower)River gauge, Monongahela River	10.02 ft	No reference yet	−0.45 ft	19 mi
Monongahela River at Hildebrand Lock & Dam (Upper)River gauge, Monongahela River	9.38 ft	No reference yet	−0.30 ft	17 mi
Monongahela River at Hildebrand Lock & Dam (Lower)River gauge, Monongahela River	10.12 ft	No reference yet	−0.20 ft	17 mi
Monongahela River at Morgantown Lock & Dam (Upper)River gauge, Monongahela River	9.93 ft	No reference yet	−0.12 ft	14 mi
Monongahela River at Morgantown Lock & Dam (Lower)River gauge, Monongahela River	10.32 ft	Below flood stage	−0.15 ft	14 mi
Monongahela River at CharleroiRiver gauge, Monongahela River	9.01 ft	Normal	−0.30 ft	22 mi
Monongahela River at BraddockRiver gauge, Monongahela River	14.33 ft	High	+0.39 ft	39 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Monongahela River (lower pool) near MasontownRiver gauge, Monongahela River (lower pool)	11.60 ft	Very high	−0.13 ft	0.1 mi
Dunkard Creek at ShannopinRiver gauge, Dunkard Creek	2.16 ft	Below flood stage	−0.19 ft	5.2 mi
Monongahela R L&D8 (Upper Pool) @ Point MarionRiver gauge	9.93 ft	High	+0.05 ft	7 mi
Monongahela R L&D8 (Lower Pool) @ Point MarionRiver gauge	12.97 ft	High	−0.41 ft	7 mi
Cheat Lake near StewartstownLake, Cheat Lake	869.17 ft	Normal	−0.37 ft	8 mi
South Fork Tenmile Creek at JeffersonRiver gauge, South Fork Tenmile Creek	3.20 ft	Below flood stage	−0.09 ft	10 mi
Monongahela R @ Maxwell L&D (lower pool) @ MaxwellRiver gauge	11.23 ft	Very high	−0.08 ft	12 mi
Monongahela R at Maxwell L&D Upper Pool @ MaxwellRiver gauge, Monongahela R	10.50 ft	Very high	+0.24 ft	12 mi

Questions and answers

What is flood stage for the Monongahela River near Masontown?

The official flood stage is 21.00 ft. The level is currently 8.43 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Monongahela River near Masontown today?

On Oct 19, 2026, 12:30 PM EDT, the water level was 12.57 ft. Down 0.29 ft over the last 24 hours.

Is Monongahela River near Masontown rising or falling?

Down 0.29 ft over the last 24 hours.

Is the level of Monongahela River near Masontown normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Monongahela River near Masontown?

The highest level on record is 36.00 ft on July 1, 1888.

Is Monongahela River near Masontown expected to rise?

The forecast expects the river to rise to 12.90 ft by Monday, October 19 at 08:00 PM.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:03072655 (Agency page)
Coordinates: 39.82503, -79.92282 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	12.57 ft	2026-10-19 16:30	Provisional
Flow	13,300 cfs	2026-10-19 16:30	Provisional
Water temperature	62 °F	2026-10-19 16:30	Provisional

Download

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How to cite

U.S. Geological Survey: Monongahela River near Masontown (usgs:03072655). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/pennsylvania/monongahela-river-near-masontown

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer