CR 11 begins an intersection with NY 108 just east of the Nassau–Suffolk county line. In Nassau County, the road is Woodbury Road and designated as CR 12. CR 11 interrupts Woodbury Road, rather than replaces it. Shortly after this intersection, Woodbury Road moves north towards Huntington, while Pulaski Road, part of New York State Bicycle Route 25A, treks eastward. In Huntington Manor CR 11 intersects with CR 92 where NYS Bike Route 25A turns south. It then crosses the Port Jefferson Branch of the Long Island Rail Road at an at-grade crossing before reaching the intersection of NY 110 in Huntington Station. 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. East of this point, much of the road is dotted with town houses and condominiums built along frontage roads. In Greenlawn, the road intersects with unsigned CR 9, and signed CR 86. Greenlawn Park is a local baseball field that runs along all three streets, and no others. In East Northport the road winds left near Oswego Drive, where the formerly proposed Babylon-Northport Expressway was intended to have an interchange. From there, Pulaski Road intersects CR 10 and then after Larkfield Road. Crossing over the Port Jefferson Branch of the Long Island Rail Road a second time, Pulaski Road takes a steep drop down a hill far below the level of the tracks, where it encounters the intersection of Bread and Cheese Hollow Road. After, Pulaski Road leaves the Town of Huntington and enters the Town of Smithtown. 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 there on, the name of the road is immediately changed to East Northport Road. NYS Bike Route 25A rejoins CR 11 at Old Commack Road, and CR 11 ends at NY 25A just two blocks west of Church Street. Northeast of CR 11's terminus at NY 25A, the road turns into Old Dock Road and runs along the west side of the former Kings Park State Hospital until reaching the Nissequogue River.
History
CR 11 was assigned on January 27, 1930. Prior to 1961, Pulaski Road had suffixed sections of CR 11 that were intended to be integrated into the rest of the road, many of which were at disjointed intersections. Once the intersections were fixed, the suffixes were deleted.
CR 11A: assigned to Pulaski Road between CR 86 and CR 10 from January 26, 1931 to September 21, 1966
CR 11B: assigned to Pulaski Road between NY 110 and CR 86 from December 28, 1931 to September 21, 1966
CR 11C: assigned to Pulaski Road between NY 108 and NY 110 from November 27, 1933 to September 21, 1966