Sodus Bay

Sodus Bay
Assorodus (Onondaga)
Flooded marina on the bay
Sodus Bay
Coordinates43°15′25″N 76°58′01″W / 43.257°N 76.967°W / 43.257; -76.967
TypeBay
EtymologySeneca for "silvery water"
Primary inflowsFirst Creek, Second Creek, Third Creek, Sodus Creek West, Sodus Creek East (Glenmark Creek), Clark Creek
Primary outflowsLake Ontario
Managing agencyNew York State Department of Environmental Conservation
Max. length3 miles (4.8 km)
Max. width2 miles (3.2 km)
Surface area3,357 acres (1,359 ha)
Average depth18 feet (5.5 m)
Max. depth48 feet (15 m)
Surface elevation247 feet (75 m)
IslandsEagle, Leroy, and Newark
SettlementsHuron, Sodus, Sodus Point

Sodus Bay is a natural embayment on the southern shore of Lake Ontario in Wayne County, New York, United States. The bay is separated from Lake Ontario by a barrier beach approximately 7,500 feet (2,300 m) in length and extends roughly 4.4 miles (7.1 km) inland, with a maximum width of about 2.4 miles (3.9 km). Formed as a post-glacial drowned river valley and later modified by longshore sediment deposition, Sodus Bay is one of several major embayments along the south shore of Lake Ontario. The bay drains a watershed of approximately 46 square miles (120 km²) and receives inflow from multiple tributaries before emptying into Lake Ontario.

Prior to European-American settlement, the bay lay within the traditional homelands of the Haudenosaunee, including the Seneca nation. By the early nineteenth century, Sodus Bay functioned as a regional port serving agricultural exports and lake trade. In June 1813, during the War of 1812, British naval forces attacked and burned much of the settlement at Sodus Point before withdrawing to Lake Ontario. To regulate cross-lake commerce with Upper Canada, a United States customs district was established at Sodus in the early nineteenth century. Congress authorized construction of a lighthouse at Sodus Point in 1824 to aid navigation into the harbor, and a replacement limestone tower was completed in 1870 on the western side of the entrance channel. Rail connections reached Sodus Bay in the 1870s, linking the harbor to interior markets and the anthracite coal regions of Pennsylvania and transforming it into a rail-to-lake coal transshipment port during the late nineteenth century. Harbor improvements, including dredging and construction of protective breakwaters at the entrance, were undertaken in the nineteenth and early twentieth centuries under federal authorization to stabilize navigation channels and protect vessels entering from Lake Ontario. In the twentieth and twenty-first centuries, as commercial shipping declined, Sodus Bay developed primarily as a recreational harbor and ecological resource along Lake Ontario.