New York State Route 900B

Glen Cove Road
Route information
Length:	11.70 mi (18.83 km) 1.9 miles (3.06 km) as NY 107 1.95 miles (3.14 km) as NY 900B 9.55 miles (15.37 km) as CR 1 0.2 miles (0.32 km) as CR 243
Component highways:	CR 1 from Hempstead to Greenvale NY 900B from Greenvale to Glen Head NY 107 from Glen Head to Glen Cove CR 243 in Glen Cove
Major junctions
South end:	Peninsula Boulevard in Hempstead
	NY 24 in Hempstead Meadowbrook State Parkway in Carle Place Northern State Parkway in Carle Place NY 25 in Old Westbury I-495 in Old Westbury
North end:	Glen Cove Avenue in Glen Cove
Location
Counties:	Nassau
Highway system
New York Highways Interstate U.S. State Reference Parkways

Glen Cove Road is a major north–south thoroughfare through north-central Nassau County on Long Island, New York, in the United States. It is the main road leading to the communities on the east shore of Hempstead Harbor. The portion south of the North Hempstead–Oyster Bay town line is the unsigned County Route 1 (CR 1), while the portion north of the town line until its intersection with NY 107 is designated as New York State Route 900B (NY 900B), an unsigned reference route, New York State Route 107 (NY 107), and County Route 243 (CR 243), an unsigned county route.

The northern segment of the highway encompasses the Glen Cove Arterial Highway, a limited-access highway that was intended to connect to a proposed bridge across the Long Island Sound to Connecticut.

Glen Cove Road was once signed as Nassau County Route 1 until all county route numbers were removed in the 1970s.

The alignment of Glen Cove Road starts at Peninsula Boulevard in downtown Hempstead as, but is known as Clinton Street in Hempstead and Clinton Road in Garden City until its intersection with Old Country Road in Carle Place. It curves from when it intersects with NY 25 to I-495 to steer clear of the Meadowbrook Parkway and the Northern Parkway. Within Old Westbury the road is concurrently signed as Guinea Woods Road.

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Wikipedia