NY 27: The Evolution of Sunrise Highway and Montauk Highway
New York State Route 27 (NY 27) serves as a vital artery for Long Island, connecting the urban density of New York City to the scenic vistas of Montauk Point. From its humble beginnings as a series of local roads like Merrick Road and Montauk Highway, NY 27 has evolved through decades of realignments, expansions, and ambitious engineering projects to become the high-capacity corridor known today as Sunrise Highway.
Key Facts
- Original Scope: Designated in the mid-1920s, initially running from the New York City line to Amagansett.
- Major Extensions: Extended to Montauk Point in 1929 and westward into Manhattan in 1934.
- Memorial Status: Designated as the POW-MIA Memorial Highway in 1997 across Queens, Nassau, and Suffolk counties.
- Key Infrastructure: Transitioned from local roads to a limited-access freeway in various stages, with the North Lindenhurst to Shinnecock Hills section completed in 1998.
- The Shinnecock Squeeze: A notorious traffic bottleneck east of the Shinnecock Canal that was finally eliminated in 2008.
Early Designation and Initial Routing
The NY 27 designation was first assigned in the mid-1920s. At its inception, the route began where Merrick Road crossed from Queens into Nassau County, following Merrick Road and Montauk Highway eastward to Amagansett. In the early years, the route also utilized South Country Road between East Patchogue and Brookhaven, passing through the village of Bellport.
By 1929, the state extended the designation further east along Montauk Highway to reach Montauk Point. However, the routing was not static; in 1930, South Country Road was integrated into the Suffolk County highway system as CR 36, prompting NY 27 to shift back to Montauk Highway between East Patchogue and Brookhaven.
The Rise of Sunrise Boulevard
The 1930s marked a shift toward higher-capacity roads. Around 1931, NY 27 was realigned west of Great River to follow the newly constructed Sunrise Boulevard, a highway running parallel to Merrick Road. This change created a new routing from the New York City line to Massapequa. The original path from Massapequa to Great River was redesignated as NY 27A.
Sunrise Boulevard continued to expand, extending to Great River by 1934. A remnant of the original route between NY 27A and the Suffolk County line survives today as NY 900D, an unsigned reference route known as Old Sunrise Highway.
Urban Expansion and the New York City Link
In December 1934, NY 27 pushed westward into the heart of New York City. The route traversed Queens and Brooklyn via Sunrise Highway, Linden Boulevard, and Flatbush Avenue, eventually crossing the Manhattan Bridge to terminate at 6th Avenue on Canal Street.
The mid-20th century brought further refinements to the urban segments. In 1940, the highway was extended east of Amityville, passing the Aqueduct Racetrack and the Brooklyn Waterworks aqueduct. Simultaneously, Conduit Boulevard was expanded into a six-lane highway with a grassy median to coordinate with the Belt Parkway system and the widening of Atlantic Avenue.
Post-War Development and Freeway Transitions
The 1950s and 60s saw NY 27 transition from a traditional road to a modern freeway. Sunrise Highway reached East Patchogue in 1953 and Eastport by 1957. The completion of the Prospect Expressway in 1964 allowed for a realignment in 1965, directing traffic via Linden, Caton, and Church Avenues to the Gowanus Expressway.
Not all plans came to fruition. In 1966, Robert Moses proposed a massive 10-to-12 lane elevated freeway through Nassau County to facilitate truck traffic. However, opposition from downtown villages effectively blocked the project.
The Shift of NY 27A
The relationship between NY 27 and NY 27A shifted significantly over time. Until 1970, NY 27A extended to Manhattan via the Brooklyn–Battery Tunnel and the West Side Elevated Highway. On January 1, 1970, NY 27 assumed this northern route to Canal Street, while NY 27A was truncated to its current western terminus in Massapequa.
Modernization and the "Shinnecock Squeeze"
Between 1969 and 1971, the New York State Department of Transportation (NYSDOT) modernized Western Islip Township by adding service roads and replacing ornate parkway-style arch bridges with utilitarian structures. Despite these upgrades, some areas remained challenging. The "Oakdale Merge," where Sunrise and Montauk Highways converge, faced delays in modernization due to environmental concerns regarding Connetquot River State Park, though it was eventually reconstructed as a freeway between 1994 and 1996.
One of the most significant challenges was the "Shinnecock Squeeze" east of the Shinnecock Canal. This area forced traffic from a multi-lane freeway into a narrow three-lane configuration, creating severe congestion. To combat this, Southampton officials implemented a "traffic cone program" in 2006 to adjust lanes for peak travel. The issue was permanently resolved in April 2008 when the segment from North Sea Road to Flying Point Road was reconfigured, adding an eastbound lane and a signalized intersection.
| Era/Year | Key Development | Impact |
|---|---|---|
| Mid-1920s | Initial Designation | Connected NYC line to Amagansett. |
| 1929 | Eastward Extension | Route extended to Montauk Point. |
| 1931-1934 | Sunrise Boulevard | Shifted traffic to a new parallel highway; created NY 27A. |
| 1964-1965 | Prospect Expressway | Improved access to the Gowanus Expressway. |
| 1997 | Memorial Designation | Named the POW-MIA Memorial Highway. |
| 2008 | Capacity Expansion | Eliminated the "Shinnecock Squeeze." |
Frequently Asked Questions
What is the "Shinnecock Squeeze"?
The Shinnecock Squeeze was a traffic bottleneck east of the Shinnecock Canal where the highway abruptly narrowed, forcing eastbound traffic into a single lane. It was eliminated in 2008 through lane reconfiguration and the addition of a signalized intersection at Flying Point Road.
How does NY 27 differ from NY 27A?
NY 27 is the primary route (Sunrise Highway/Montauk Highway), while NY 27A was created as a result of realignments. NY 27A generally follows the older, more local paths that NY 27 bypassed when the higher-speed Sunrise Highway was constructed.
Why was the Robert Moses elevated freeway never built?
Proposed in 1966, the 10-to-12 lane elevated freeway through Nassau County was intended to provide a truck link for the South Shore. However, the plan was stopped by the downtown villages along the proposed route.
What is the POW-MIA Memorial Highway?
In 1997, the entire length of Sunrise Highway spanning Queens, Nassau, and Suffolk counties was officially designated as the POW-MIA Memorial Highway to honor prisoners of war and those missing in action.
What happened to the parkway-style bridges in Bay Shore?
Between 1969 and 1971, when service roads were constructed in Western Islip Township, the original parkway-style arch bridges and cloverleaves at Fifth Ave and Brentwood Road were demolished and replaced with utilitarian structures to accommodate the new road layout.