Interstate 487
Canceled portion of I-487 highlighted in brown; Croton Expressway highlighted in red | ||||
| Route information | ||||
| Auxiliary route of I-87 | ||||
| Length | 47 mi (76 km) | |||
| History | Proposed in 1965; cancelled in 1971 | |||
| NHS | Entire route | |||
| Major junctions | ||||
| South end | I-87 / I-287 / New York Thruway in Tarrytown | |||
| North end | I-84 near Beacon | |||
| Location | ||||
| Country | United States | |||
| State | New York | |||
| Counties | Westchester, Putnam, Dutchess | |||
| Highway system | ||||
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Interstate 487 (I-487) was a proposed intrastate Interstate Highway in the Hudson Valley region of New York in the United States. At its greatest extent, the highway, known as the Hudson River Expressway (HRE), was to run for 47 miles (76 km) on the east side of the Hudson River from I-87 in Tarrytown to I-84 east of Beacon. It was met with opposition from its introduction in 1965, leading the project to be gradually scaled back before it was cancelled completely in 1971. Ultimately, only one section was built, an 8-mile (13 km) stretch between Ossining and Peekskill. This road became known as the Croton Expressway and was designated as part of U.S. Route 9 (US 9).