Within northwestern Suffolk County, CR 11 provides the closest access to the Port Jefferson Branch of the Long Island Rail Road, since it runs roughly parallel to the tracks throughout its span.

Also in Huntington Station is the intersection of CR 35, which has become a connection between the North Shore and NY 231, since the cancellation of the proposed Babylon–Northport Expressway.

In East Northport, the road winds left near Oswego Drive, where the formerly proposed Babylon–Northport Expressway was intended to have an interchange.

Sunken Meadow State Parkway was built underneath Pulaski Road in the 1950s.

It shares a cloverleaf interchange, which has the southernmost ramps squeezed tightly between the train trestle carrying the LIRR Port Jefferson line.

From the 1940s through the 1960s, the New York State Department of Transportation considered acquiring the road as part of a proposed North Shore Expressway which was to include the realignment of NY 25A.