Medford Avenue (Route 112)
New York State Route 112 (NY-112) is a major north–south state highway in central Suffolk County, Long Island. Spanning approximately 20 miles, it connects Patchogue on the South Shore to Port Jefferson Station on the North Shore, serving as one of the region’s most important cross-island travel routes. Route 112, known locally as Medford Avenue in Patchogue, is a major north–south state highway…
Unlike Long Island’s east–west parkways and expressways, NY-112 provides a direct north–south link through suburban and commercial areas, making it a heavily traveled corridor for local traffic, commuting, and access to major destinations including the Long Island Expressway and Brookhaven National Laboratory.
Route and Features
- Southern Terminus: NY-27 (Sunrise Highway) in Patchogue
- Northern Terminus: NY-25A in Port Jefferson Station
- Length: ~20 miles
- County: Suffolk
- Character: Multi-lane suburban arterial with residential, commercial, and institutional segments
- Restrictions: Open to all vehicles (not a parkway)
Major Intersections & Interchanges (south → north)
| Junction | Destination / Notes |
|---|---|
| NY-27 (Sunrise Highway) | Patchogue — Southern terminus |
| CR-16 (Horseblock Road) | Yaphank / Medford east–west connection |
| I-495 (Long Island Expressway) | Exit 64 — major regional highway access |
| CR-21 (Middle Country Road / NY-25 nearby) | Medford / Selden commercial corridor |
| CR-83 (Patchogue–Mount Sinai Road) | Coram / Mount Sinai north–south link |
| NY-347 (Nesconset Highway) | Major east–west commuter route |
| NY-25A | Port Jefferson Station — Northern terminus |
Notable Facts
- Key north–south connector: One of the primary routes linking the South Shore to the North Shore in central Suffolk County.
- Expressway access: Provides direct access to the Long Island Expressway (I-495), making it critical for commuters traveling across Long Island.
- Commercial and residential mix: The roadway transitions from suburban neighborhoods to busy retail corridors, particularly near Medford, Coram, and Port Jefferson Station.
- Brookhaven National Laboratory access: Serves as a major route for reaching Brookhaven National Laboratory via connecting roads.
- High traffic volumes: Carries significant daily traffic due to its role as a cross-island route and its connections to major highways.
- Local lifeline: Functions as both a commuter route and a daily-use roadway for shopping, schools, healthcare, and employment centers.
Route 112 serves as a practical backbone through central Suffolk County, connecting communities, businesses, and major roadways in a way few north–south routes on Long Island can. While it may not carry the name recognition of the island’s parkways, its role in linking the South Shore to the North Shore – along with direct access to key corridors like Sunrise Highway and the Long Island Expressway – makes it an essential everyday route for residents, commuters, and regional travel alike.
