) is a part of the Interstate Highway System
that runs from Seattle, Washington
, to Boston, Massachusetts
. In the U.S. state
of New York
, I-90 extends from the Pennsylvania state line
to the Massachusetts
state line at Canaan
. Although most of the route is part of the New York State Thruway
, a non-tolled section situated in the Capital District
and not part of the Thruway system, links Albany
and its eastern suburbs. Within New York, I-90 has a complete set of auxiliary Interstates. For most of its length in New York, I-90 runs parallel to the former Erie Canal
route, New York State Route 5
(NY 5), U.S. Route 20
(US 20) and the CSX
railroad mainline that traverses the state.
I-90 was assigned in 1957 as part of the establishment of the Interstate Highway System. In New York, it was overlaid on the pre-existing New York State Thruway from Pennsylvania to Albany, from where it would have continued to Massachusetts on a new freeway that bypassed the Berkshire Connector
to the north. Ultimately, the freeway was built from the Thruway mainline in Albany to the Berkshire Connector in Schodack
, and I-90 was assigned to the segment of the Connector east of the proposed freeway. The Albany–Schodack freeway was completed in stages during the 1960s and 1970s and fully open by 1977.
New York State Thruway
West of Albany
, I-90 in New York is designated along the mainline of the New York......