Old roads From 1930 to 1982, NY 210 extended eastward into
Rockland County. This extension was primarily made up of several highways that were previously part of a privately maintained road. On March 10, 1824, the
New York State Legislature passed a law incorporating the
Monroe and Haverstraw Road Company. The new company was tasked with building a turnpike from the
hamlet of Monroe (now Southfields) east to the town of
Haverstraw, where it ended at a fork in the road somewhere in the town. The turnpike company ceased to exist on April 28, 1870, when the legislature passed a law repealing the 1824 document that created the turnpike company. The highway was subsequently sold off in order to pay off the debts of the company and to finance repairs to bridges along the road. When
Harriman State Park opened in 1910, the Monroe–Haverstraw highway was renamed Southfields Road. Three years later, a portion of the route became part of
Seven Lakes Drive, a major highway built to traverse the park. In 1916, Rockland County numbered its highways for the first time. The Rockland County section of the former Monroe and Haverstraw Road was designated as CR 416 at this time. From 1919 to 1920, the highway was reconstructed and rebuilt to state standards. In the
1930 renumbering of state highways in New York, NY 55 was incorporated into two longer routes: NY 210 from New Jersey to Greenwood Lake and
NY 17A from Greenwood Lake to Goshen. Initially, NY 17A ended in Greenwood Lake while NY 210 continued east to
U.S. Route 9W (US 9W) on the banks of the
Hudson River in
West Haverstraw. From Greenwood Lake to
Southfields, NY 210 was routed on modern NY 17A. The route continued east from there along Southfields Road to the eastern fringe of Harriman State Park, at which point it headed to West Haverstraw via Willow Grove and Letchworth Village roads, Suffern Lane, and Railroad Avenue. while NY 210 was realigned on its east end by 1938 to end at US 9W in
Stony Point. Instead of following Willow Grove Road, the highway remained on modern Gate Hill Road to the vicinity of Stony Point, where it entered the hamlet on Main Street. It was rerouted again between 1968 and 1973 to bypass Main Street to the south on Central Drive. On April 1, 1980, ownership and maintenance of the portion of NY 210 from NY 17 to the Orange–Rockland county line was transferred from the state of
New York to
Orange County as part of a highway maintenance swap between the two levels of government. Two years later, the portion of the route within Rockland County was turned over from the state to the county. The former routing of NY 210 is now designated as CR 106 in both
Orange and
Rockland counties.
Accidents Over the years, at least two fatal accidents have occurred on the portion of NY 210 that runs alongside
Greenwood Lake. On July 15, 1940, a
Brooklyn couple was killed when their car struck a stone ledge near the lake. Two others were injured in the accident. On December 1, 1968, three were killed and one person was injured when two cars had a head-on collision just north of the New Jersey state line. ==Major intersections==