| County Route 16 | ||||
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| Route information | ||||
| Maintained by SCDPW | ||||
| Length: | 16.02 mi[1] (25.78 km) | |||
| Existed: | 1930(1964) – present | |||
| Major junctions | ||||
| West end: | NY 25 in Smithtown | |||
| NY 347 near Smithtown CR 97 near Farmingville CR 83 near Farmingville NY 112 in Medford I-495 near Medford CR 101 near Yaphank NY 27 near South Haven |
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| East end: | CR 80 near South Haven | |||
| Highway system | ||||
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Numbered highways in New York
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Suffolk County Route 16 is a main thoroughfare through central Suffolk County, New York. Its western terminus is at Middle Country Road (New York State Route 25) in Smithtown, on the eastern border of the Village of the Branch, and its eastern terminus is at Montauk Highway (County Route 80) in Brookhaven near Southhaven. The route carries five different names along its length.
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CR 16 begins as Terry Road at an intersection with NY 25. From NY 25, the road runs to the south near a former concrete factory. It then crosses New York State Route 347. Several blocks south of NY 347, CR 16 joins Smithtown Boulevard, while Terry Road continues to run south as a road maintained by the Town of Smithtown, and crosses the Islip town line into Lakeland.
A former section of Terry Road exists near New York State Route 25A. It is unknown how this section connected to the present terminus of Terry Road at NY 25 while traversing the surrounding terrain.
Of the five roads shared by CR 16, Smithtown Boulevard is the only road completely controlled by Suffolk County. Not only are there no former sections, but there are no sections of the road that branch off as local streets. Smithtown Boulevard goes from Smithtown, through Nesconset where it serves as the hamlet's main street, and eventually terminates in Lake Ronkonkoma east of County Road 93 (Rosevale Avenue).
At one time, County Road 76 (Town Line Road) was proposed to curve north of the Smithtown-Islip Town Line, and terminate between Old Nichol's Road (not to be confused with Nicoll's Road) and Rosevale Avenue.
Along the north and east side of Lake Ronkonkoma is a road known as Lake Shore Drive, the northern portion of which consists mostly of CR 16, except between Spectacle Lake Road and Schoolhouse Road, which is maintained by the Town of Smithtown. The east end of this section near Schoolhouse Road has suffered such excessive flooding that it was closed by Suffolk County and turned over to the Parks Department, while the rest of it was sold to a local night club on the lake and transformed into part of the parking lot. East of Schoolhouse Road however, the road crosses the Smithtown-Brookhaven Town Line and runs high along the bluffs of Lake Ronkonkoma until it reaches Portion Road. Suffolk CR 16 moves east onto Portion Road while Lake Shore Drive continues south along the lake as a road maintained by the Town of Brookhaven.
Portion Road begins at the intersection of Lake Shore Drive. Old Portion Road is a former section of Portion Road located just south of that intersection. Through Lake Ronkonkoma and western Farmingville, CR 16 crawls eastward in a hilly region of Long Island, as it intersects with Ronkonkoma Avenue, Hawkins Avenue, County Route 19 (Patchogue-Holbrook Road), and Holbrook Road before reaching an interchange with County Route 97 (Nicolls Road), where the road opens up to four lanes. Suffolk County is currently planning to widen the rest of the road to four lanes.[2] This section of CR 16 once carried the additional name of Farm-to-Market Road.
For all intents and purposes, Horseblock Road is the main section of CR 16. Like Portion Road, it once shared the additional name of Farm-to-Market Road. Unlike the rest of CR 16, Horseblock Road's western terminus is at Middle Country Road (NY 25) in Centereach. Originally, Horse Block Road was connected to another street a few blocks west of the current terminus named Mark Tree Road. The two sections formed a single road that ran from South Setauket to South Haven. The connection between the two streets are cut off by a shopping center on the north side of NY 25 between Mark Tree and Eastwood Road. It then traverses to the south-southeast, and is cut off by CR 97 (Nicolls Road), Suffolk County Community College, and other county facilities in Farmingville, and joins up with Portion Road from a frontage road west of Nicolls Road named Leeds Boulevard at the interchange with Nicolls Road. The section east of Nicolls Road resumes at Horseblock Place and then joins Portion Road west of Waverly Avenue.
Horseblock Road then travels east-southeast through Farmingville (home of the historic Bald Hill Schoolhouse and Cotten Coverage Insurance Agency), intersecting Blue Point Road, Granny Road, and County Route 83 (North Ocean Avenue) and then narrows down to two lanes eventually entering Medford, intersecting New York State Route 112, the Long Island Expressway at exit 65, and County Road 101 (Patchogue-Yaphank Road). It then enters southern Yaphank and Brookhaven, where it intersects County Road 99 (Woodside Avenue, a road whose construction in the early 1970s lead to Horse Block Road's realignment) and then County Road 21 (Yaphank Avenue), where it shares an interchange with Sunrise Highway (New York State Route 27) before terminating at County Road 80 (Montauk Highway) in Brookhaven.
Though Suffolk County Road 16 has run consistently from Smithtown to Brookhaven since the mid-1960s, this wasn't always the case. Many segments have been part of other county roads.
East Lake Shore Terrace Drive and Portion Road used to be part of Suffolk County Road 19 from the Smithtown-Brookhaven Town Line to Waverly Avenue in Farmingville. In 1960, this terminus was moved to Patchogue-Holbrook Road.
The construction of Sunrise Highway in 1957 lead to the realignment of Horseblock Road west of its original eastern terminus with South Country Road(former Montauk Highway) in South Haven. Because the interchange is shared with Suffolk CR 21, the new alignment was originally designated as Suffolk CR 21A.
Horse Block Road used to be a western extension of Suffolk CR 56 between Victory Avenue, a frontage road along Sunrise Highway that begins at Suffolk CR 46, in Brookhaven and Waverly Avenue in Farmingville. In 1964, it was moved only to Victory Avenue. Today that frontage road is unmarked.