County Route 105 (CR 105) is a major north–south

county road A county highway (also county road or county route; usually abbreviated CH or CR) is a road in the United States and in the Canadian province of Ontario that is designated and/or maintained by the County (United States), county highway departme ...

Suffolk County, New York Suffolk County () is the easternmost county in the U.S. state of New York. It is mainly located on the eastern end of Long Island, but also includes several smaller islands. According to the 2020 United States census, the county's populatio ...

, in the United States. It is a four-lane, mostly divided highway that runs from CR 104 to Sound Avenue in Northville, west of the western terminus of CR 48 in Mattituck.

Route description

The road begins at an at-grade interchange with CR 104 in the David Allen Sarnoff Pine Barrens Preservation Area, southwest of

Flanders Flanders (, ; Dutch: ''Vlaanderen'' ) is the Flemish-speaking northern portion of Belgium and one of the communities, regions and language areas of Belgium. However, there are several overlapping definitions, including ones related to culture, ...

. It immediately curves from an east–west trajectory to a north–south one before its intersection with New York State Route 24 (NY 24). From that point on, the road becomes a semi-limited-access highway as it crosses the Peconic River before running through Riverhead Golf Course and crossing Sawmill Creek. A diamond interchange exists for a park road in Indian Island County Park, followed by a quarter-cloverleaf interchange for Hubbard Avenue near the Main Line of the

Long Island Rail Road The Long Island Rail Road , often abbreviated as the LIRR, is a commuter rail system in the southeastern part of the U.S. state of New York (state), New York, stretching from Manhattan to the eastern tip of Suffolk County, New York, Suffolk Co ...

. North of NY 25 in

Aquebogue Aquebogue () is a census-designated place (CDP) roughly corresponding to the hamlet by the same name in the Town of Riverhead in Suffolk County, on Long Island, in New York, United States. The CDP's population was 2,438 at the 2010 census. Aqu ...

, a cloverleaf interchange was planned for the formerly proposed

Long Island Expressway Long may refer to: Measurement * Long, characteristic of something of great duration * Long, characteristic of something of great length * Longitude (abbreviation: long.), a geographic coordinate * Longa (music), note value in early music mensur ...

Extension. CR 105 replaces Union Avenue south of the intersection with CR 43 (Northville Turnpike) in Northville, only to run along the west side of the former Riverhead Air Park, and finally terminates at Sound Avenue.

History

The at-grade interchange with CR 104 was built for one purpose; a future extension into Central Suffolk County. The at-grade interchange was to be upgraded to a real interchange, as was the case with many existing intersections. From there, the road was to run west through the David A. Sarnoff Pine Barrens Preserve, then was to cross over CR 88 (Speonk–Riverhead Road), where it was to turn north as it ran along the south and west sides of the

Suffolk County Community College Suffolk County Community College (SCCC) is a public community college in Selden, New York. It is part of the State University of New York (SUNY) system and is funded in part by Suffolk County, New York. Suffolk County Community College was ...

Eastern Campus before crossing over CR 51 at Bald Hill. The road was to turn from north back to west as it ran along Hot Water Street and Cranberry Highway, which runs through land that was owned partially by the

Calverton Naval Weapons Industrial Reserve Plant Naval Weapons Industrial Reserve Plant, Calverton (NWIRP) was a government-owned, contractor-operated (GOCO) facility which had the mission of designing, fabricating, and testing prototype aircraft from 1956 until 1996, in Riverhead, New York, Un ...

. A wye interchange was to exist with CR 90 before terminating at CR 111 (Port Jefferson–Westhampton Beach Highway). This was to be the eastern leg of the formerly proposed Central Suffolk Highway, which was designed to reunite the two sections of

NY 24 New York State Route 24 (NY 24) is a east–west state highway on Long Island in the U.S. state of New York. The highway is split into two segments, with the longest and westernmost of the two extending from an interchange with In ...

Major intersections

References

External links

{{NYSR external links, alps=cr_105, display=County Route 105
Suffolk CR 105 (Greater New York Roads)

105 105 may refer to: *105 (number), the number *AD 105, a year in the 2nd century AD *105 BC, a year in the 2nd century BC * 105 (telephone number) * 105 (MBTA bus) * 105 (Northumberland) Construction Regiment, Royal Engineers, an English military unit ...