AN EXPRESSWAY TO REPLACE ROUTE 110: In 1970, the Nassau-Suffolk Regional Planning Board recommended converting NY 110, a north-south, two-to-four lane arterial serving western Suffolk County, into a six-lane expressway. The expressway was to be flanked by service roads throughout its entire length. The Broad Hollow Expressway was to would serve the fast-growing commercial and industrial corridor between Huntington Station and Amityville, as well as Republic Airport.
The Long Island planning agency stated its reasons for constructing the NY 110 Expressway as follows:
A proposed expressway along the general alignment of NY 110 from Sunrise Highway (NY 27) in Amityville and Jericho Turnpike (NY 25) in Huntington Station is recommended. Its purpose is to accommodate the anticipated high growth of this corridor between 1970 and 1985.
In preparation for the Broad Hollow Expressway, the New York State Department of Transportation (NYSDOT) was to build a cloverleaf interchange at the intersection of NY 110 and NY 25 in Huntington Station. Planned as early as 1965, the "Huntington Interchange" was estimated to cost $4.4 million. Drawing the ire of local businessmen and residents, the NY 110-NY 25 interchange, and ultimately the Broad Hollow Expressway, were never built.
IMPROVING THE EXISTING ROUTE 110: During the late 1980's, the NYSDOT widened the existing four-lane arterial NY 110 to six lanes from NY 109 (Babylon-Farmingdale Road) to the Long Island Expressway (I-495) in Melville. In 2006, the state announced an $80 million plan to extend the six-lane widening north to the Northern State Parkway in Melville. The new project, which would begin in 2008 and be completed in 2010, would include the reconstruction of the existing interchange with the Northern State Parkway, including a new overpass and reconfiguration of the cloverleaf into a five-ramp interchange.
According to the NYSDOT, NY 110 carries approximately 60,000 vehicles per day (AADT) through its busiest section in Melville. The "LITP 2000" long-range plan calls for widening NY 110 to six lanes from NY 109 south to Sunrise Highway (NY 27) in Amityville. From the Northern State Parkway south to the Sunrise Highway, the completed third travel lane in each direction would accommodate Long Island Rapid Commute (LIRC) articulated vehicles during peak-hour periods.