The William Cullen Bryant Viaduct, historically known as the Roslyn Viaduct, is a viaduct that carries four lanes of Northern Boulevard over Hempstead Harbor between the Incorporated Villages of Flower Hill and Roslyn, in Nassau County, on Long Island, in New York, United States. It serves as a bypass of Roslyn's downtown. The original bridge opened in 1949 and was replaced in phases between 2005 and 2012.
The new span of the Bryant Viaduct over Hempstead Harbor, as seen in 2015.
The original span of the William Cullen Bryant Viaduct crossing Hempstead Harbor, looking northeast. Note the crane being used to construct the new bridge behind it.
Hempstead Harbor
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Hempstead Harbor is a bay hugging the northern coast of Long Island, New York. Located off of the Long Island Sound, it forms the northernmost portion of the political border between the Nassau County towns of Oyster Bay on the east and North Hempstead on the west, as well as the western border of the city of Glen Cove.
Hempstead Harbor in Roslyn
Aerial view of Hempstead Harbor in June 2021, looking north. The Cow Neck Peninsula is visible at left.
Hempstead Harbor, as seen from West Shore Road in Port Washington, prior to the demolition of the Glenwood Generating Station. This photo is looking towards the southeast.