Map of Long Island and vicinity with NY 112 highlighted in red
|Maintained by NYSDOT|
|Length||12.50 mi (20.12 km)|
|South end||Main Street in Patchogue|
| NY 27 in Patchogue|
I-495 in Medford
NY 347 in Port Jefferson Station
|North end||NY 25A in Port Jefferson Station|
New York State Route 112 (NY 112) is a state highway located entirely within the town of Brookhaven in Suffolk County, New York, in the United States. It runs from an intersection with Montauk Highway (formerly part of NY 27A) in the village of Patchogue to a junction with NY 25A in Port Jefferson Station. It is known locally as Medford Avenue in Patchogue and Patchogue Road in Terryville and Port Jefferson Station. The official name for the road outside these areas is "Patchogue–Port Jefferson Road", though it is often signed simply as "Route 112".
NY 112 begins at an intersection with County Route 80 (CR 80; East Main Street) in the village of Patchogue. The route proceeds northward as a four-lane commercial street as Medford Avenue. Near the intersection with Lakewood Street, NY 112 leaves the village of Patchogue, entering the town of Brookhaven. The route does not change going north, passing Medford Elementary School before entering interchange 53 of the Sunrise Highway (NY 27) in the census-designated place of North Patchogue. NY 112 crosses over the Sunrise, continuing north as Medford Avenue as the four-lane boulevard it was prior to the interchange. At the intersection with Shaber Road, the route bends to the northeast, changing names to Medford Road and crossing an intersection with CR 99 (Woodside Avenue), a four-lane arterial through Brookhaven.
Continuing north from CR 99, NY 112 condenses down to two lanes (one in each direction), remaining a commercial arterial. NY 112 passes Tremont Elementary School before crossing Greenport Road, continuing northward into the census-designated place of Medford. In Medford, NY 112 continues north, crossing under the Long Island Rail Road's Greenport Branch next to the Medford station. After crossing under the tracks, NY 112 continues northeast through Medford, entering interchange 64 of the Long Island Expressway (I-495) and expanding to four lanes once again before an intersection with CR 16 (Horse Block Road). The route returns to two lanes after CR 16, passing east of Blue Ridge Golf Club and Holy Sepulchre Cemetery. At this point, NY 112 changes names from Medford Avenue to Port Jefferson–Patchogue Road.
Continuing north through Brookhaven, NY 112 intersects a former alignment of itself, entering the census-designated place of Coram. In Coram, NY 112 bends to the northwest at an intersection with Grand Smith Road, immediately intersecting with NY 25 (Middle Country Road). The two roads parallel each other westward, NY 112 becoming a residential street in the middle of a large housing complex in Coram before turning northward and into an at-grade interchange with CR 83 (Patchogue–Mount Sinai Road). NY 112 continues north out of the interchange and Coram, turning northwest as a two-lane residential arterial. After Birchwood Road, NY 112 becomes commercial once again, bending further to the northwest.
After the bend, NY 112 continues through Brookhaven, crossing a large shopping plaza into the census-designated place of Port Jefferson Station. In Port Jefferson Station, NY 112 intersects with NY 347 (Nesconset Highway), a wide arterial boulevard in the town of Brookhaven. The route continues northwest away from NY 347 as a four-lane commercial street, now under the moniker of Patchogue Road. Just after entering the downtown portion of Port Jefferson Station, NY 112 intersects with NY 25A (Hallock Avenue). At this intersection, NY 112 terminates, the right-of-way continues north as NY 25A and Main Street, connecting to the namesake train station on the Port Jefferson Branch.
NY 112 was known as the Patchogue Stage Road in the 19th and early 20th centuries, serving as the main thoroughfare for New England residents taking stagecoaches from Port Jefferson to Patchogue. Additionally, the Medford Avenue segment in Patchogue and North Patchogue was part of the historic Long Island Bicycle Path, which ran from Patchogue to Port Jefferson in the 1890s and into the early 20th century. Most of the old stage road was acquired by the state of New York in 1913; however, the section within the Patchogue village limits did not become state-maintained until the 1920s. The Patchogue–Port Jefferson state highway did not receive a posted designation until the 1930 renumbering of state highways in New York, when it became NY 112.
Parts of NY 112 have been realigned to bypass curves or turns in the original stage road. One former segment lies behind a New York State Department of Transportation (NYSDOT) maintenance yard in Coram. Other highways that were once part of NY 112 include part of Middle Island Road and an abandoned road in Medford; a section near Pine Road in Coram; and a segment near East Gate in Terryville. In the 1960s and 1970s, NYSDOT wanted to realign both NY 112 and NY 25 in Coram. Plans to realign NY 112 in this area date as far back as the 1930s.
The route originally crossed the Long Island Rail Road in Medford by way of a dangerous grade crossing. It was replaced with a steel bridge in 1940, 13 years after a driver was killed while traversing the crossing. The bridge has a low 12-foot-9-inch (3.89 m) clearance. In 1964, the segment of NY 112 in Patchogue between East Main and Clark streets was widened to four lanes.
When the Long Island Expressway (Interstate 495) was built across central Suffolk County between 1969 and 1971, NY 112 was widened to a four-lane divided highway in the vicinity of the new expressway. This project included tilting the curved embankment of the southbound lane, which has created a series of floods in moderate to heavy rainstorms.
The entire route is in Suffolk County.
|Patchogue||0.00||0.00||East Main Street||Southern terminus; formerly part of NY 27A and CR 80|
|North Patchogue||0.89||1.43||NY 27 (Sunrise Highway)||Exit 53 on NY 27|
|Medford||4.07||6.55||I-495 (Long Island Expressway)||Exit 64 on I-495|
|Coram||7.22||11.62||NY 25 (Middle Country Road)|
|Port Jefferson Station||11.94||19.22||NY 347 (Nesconset–Port Jefferson Highway)|
|12.50||20.12||NY 25A (Hallock Avenue / Main Street)||Northern terminus|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
- Dickinson, Leon A. (January 12, 1930). "New Signs for State Highways". The New York Times. p. 136. Retrieved July 18, 2010.
- "2008 Traffic Data Report for New York State" (PDF). New York State Department of Transportation. June 16, 2009. p. 242. Retrieved January 24, 2010.
- Street name sign at NY 112 and Peconic Avenue, Medford, New York (Google Street View)
- Microsoft; Nokia (May 2, 2012). "overview map of NY 112" (Map). Bing Maps. Microsoft. Retrieved May 2, 2012.
- Gubitosi, Mary. Medford: The Early Years, 1844–1944 (PDF). Patchogue–Medford Library Local History Department. Retrieved April 21, 2012.
- Auctioned Lands around the Long Island Rail Road and Medford Station (Map). Muller, Adrian H. 1850.
- L.A.W. Bulletin and Good Roads. 29. League of American Wheelmen. January 6, 1899. p. 817. Retrieved April 21, 2012.
- Atlas of Suffolk County, New York (Map). Belcher and Hyde. 1906.
- Atlas of Suffolk County, New York (Map). Belcher and Hyde. 1917.
- New York State Department of Highways (1920). Report of the State Commissioner of Highways. Albany, NY: J. B. Lyon Company. pp. 244–250. Retrieved April 22, 2012.
- Official Map Showing State Highways and other important roads (Map). Cartography by Rand McNally and Company. State of New York Department of Public Works. 1926.
- NY 112 at Pine Road; 1954 (Historic Aerials Online)
- Old Hagstroms Long Island and Suffolk County Maps (various years)[vague]
- Topographical Map of NY 112 near Terryville; 1944 (Historic Aerials Online)
- "Proposed Revised Plan of Major Highways". Town of Brookhaven (Suffolk County). August 4, 1937. Cite journal requires
- Federal Highway Administration (2009). "Structure 7037030". National Bridge Inventory. United States Department of Transportation.
- 12' 9" Clearance (Low clearance advisory sign at bridge). Medford, NY.
- "Some Day, Folks Will Say 'Remember When...?'". The Main Street Press. Patchogue, NY. January 31, 1964. p. 1.
- "Ask Dr. Conehead". Newsday. New York City. February 28, 1999.
- "Ask Dr. Conehead". Newsday. New York City. February 27, 2000.
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