SUSQUEHANNA RIVER

RIVER LEVELS
December 21, 2024
39.71, -76.23


TOTAL RIVER DISCHARGE

Total streamflow across the Susquehanna River was last observed at 334,320 cfs, and is expected to yield approximately 663,116 acre-ft of water today; about 106% of normal. Average streamflow for this time of year is 315,777 cfs, with recent peaks last observed on 2011-09-09 when daily discharge volume was observed at 3,832,200 cfs.

Maximum discharge along the river is currently at the Susquehanna River At Marietta reporting a streamflow rate of 49,900 cfs. This is also the highest stage along the Susquehanna River, with a gauge stage of 38.25 ft at this location. This river is monitored from 16 different streamgauging stations along the Susquehanna River, the highest being situated at an altitude of 979 ft, the Susquehanna River At Unadilla Ny.

The Susquehanna River, located in the northeastern United States, stretches for 444 miles from its source in upstate New York to the Chesapeake Bay. It has played a significant role in the history of the region, serving as a transportation route for Native Americans and early settlers. The river's hydrology is characterized by high flow variability, with floods and droughts being common. The river is home to several reservoirs and dams, including the Conowingo Dam and the Safe Harbor Dam, both of which generate hydroelectric power. Recreational activities such as fishing, boating, and camping are popular along the river, and it also supports agriculture by providing irrigation for crops. However, pollution from agricultural runoff and other sources has impacted the river's water quality and ecosystem.

Last Updated 2024-12-21
Discharge Volume 663,116 ACRE-FT
Streamflow 334,320.0 cfs
+3780.0 cfs (+1.14%)
Percent of Normal 105.87%
Maximum 3,832,200.0 cfs
2011-09-09
Seasonal Avg 315,777 cfs

YEAR OVER YEAR DISCHARGE (CFS)

Streamflow Conditions
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Susquehanna River At Unadilla Ny
USGS 01500500
2580 cfs 5.23 ft -10.73
Susquehanna River At Bainbridge Ny
USGS 01502632
3920 cfs 5.28 ft -14.04
Susquehanna River At Windsor Ny
USGS 01502731
4670 cfs 6.81 ft -14.31
Susquehanna River At Conklin Ny
USGS 01503000
5750 cfs 5.84 ft -10.71
Susquehanna River At Vestal Ny
USGS 01513500
10000 cfs 8.04 ft -13.79
Susquehanna River At Owego Ny
USGS 01513831
10100 cfs 16.77 ft -13.68
Susquehanna River Near Waverly Ny
USGS 01515000
11200 cfs 4.94 ft -14.5
Susquehanna River At Towanda
USGS 01531500
14300 cfs 3.54 ft -14.37
Susquehanna River At Meshoppen
USGS 01533400
17100 cfs 13.09 ft -10.94
Susquehanna River At Wilkes-Barre
USGS 01536500
19600 cfs 6.2 ft -7.98
Susquehanna River At Bloomsburg
USGS 01538700
21600 cfs 5.87 ft -4
Susquehanna River At Danville
USGS 01540500
23500 cfs 7.11 ft 0
Susquehanna River At Sunbury
USGS 01554000
41400 cfs 11.19 ft 0
Susquehanna River At Harrisburg
USGS 01570500
49800 cfs 5.65 ft 4.84
Susquehanna River At Marietta
USGS 01576000
49900 cfs 38.25 ft 6.17
Susquehanna River At Conowingo
USGS 01578310
48900 cfs 14.21 ft 36.97
History of the River

The Susquehanna River (; Lenape: Siskëwahane) is a major river located in the northeastern and mid-Atlantic United States. At 444 miles (715 km) long, it is the longest river on the East Coast of the United States that drains into the Atlantic Ocean. With its watershed, it is the 16th-largest river in the United States, and the longest river in the early 21st-century continental United States without commercial boat traffic.
The Susquehanna River forms from two main branches: the "North Branch", which rises in Cooperstown, New York, and is regarded by federal mapmakers as the main branch or headwaters, and the West Branch, which rises in western Pennsylvania and joins the main branch near Northumberland in central Pennsylvania.
The river drains 27,500 square miles (71,000 km2), including nearly half of the land area of Pennsylvania. The drainage basin (watershed) includes portions of the Allegheny Plateau region of the Appalachian Mountains, cutting through a succession of water gaps in a broad zigzag course to flow across the rural heartland of southeastern Pennsylvania and northeastern Maryland in the lateral near-parallel array of mountain ridges. The river empties into the northern end of the Chesapeake Bay at Perryville and Havre de Grace, Maryland, providing half of the Bay's freshwater inflow. The Chesapeake Bay is the ria of the Susquehanna.

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