New York State Route 100 marker

New York State Route 100

Map of Southeastern New York with NY 100 highlighted in red
Route information
Maintained by NYSDOT and Westchester County
Length33.27 mi[1] (53.54 km)
Existed1930[2]–present
Major junctions
South end Cross County Parkway / I-87 / New York Thruway in Yonkers
Major intersections
North end US 202 in Somers
Location
CountryUnited States
StateNew York
CountiesWestchester
Highway system
← NY 99→ NY 100A

New York State Route 100 (NY 100) is a major north–south state highway in Westchester County, New York, in the United States. It begins parallel to Interstate 87 (I-87) at a junction with the Cross County Parkway in the city of Yonkers and runs through most of the length of the county up to U.S. Route 202 (US 202) in the town of Somers. NY 100 was designated as part of the 1930 renumbering of state highways in New York. Prior to becoming a state road, various sections of NY 100 were part of several important early roads in the county.

Route description

100A and 100 intersection in Hartsdale

NY 100 begins in the city of Yonkers as Central Park Avenue (almost always just called "Central Avenue") at exit 4 of the New York State Thruway (I-87).[1] This portion of Central Avenue is maintained by Westchester County as County Route 47II (CR 47II), an unsigned reference route.[3] Central Avenue continues south as a service road for I-87 until The Bronx, where it splits from I-87 shortly after entering the city, and becomes Jerome Avenue, a major surface road in the West Bronx. NY 100 diverges from I-87 just north of exit 5 and heads northeast, crossing over the Sprain Brook Parkway about 0.6-mile (1.0 km) beyond the split. Central Avenue has an interchange with Tuckahoe Road shortly after the Sprain Brook Parkway. The road continues through Yonkers in the area between the Grassy Sprain Reservoir and the Bronx River, with many shops lining both sides. At the northernmost part of the city, Central Avenue intersects Fort Hill Road, which leads to Jackson Avenue and the northbound Sprain Brook Parkway. Central Avenue continues out of the city of Yonkers into the Edgemont/Greenville section of the town of Greenburgh. The only noteworthy intersection in this area is with Ardsley Road, and east-west road that goes straight across most of south-central Westchester. NY 100 runs through the hamlet of Hartsdale, about two miles (3 km) north of the city line, and where the bypass route NY 100A (Hartsdale Avenue) begins. Hartsdale Avenue also continues east of the intersection into the village of Hartsdale without a route designation. Central Avenue then enters the city limits of White Plains, where the road ends at NY 119 (Tarrytown Road). Within White Plains, the road is county-maintained with unsigned designations of CR 99 and CR 90.[3][4]

NY 100 north follows NY 119 west for a 0.5-mile (0.8 km) overlap through the western reaches of White Plains. Access to I-287 (the Cross-Westchester Expressway) and the Bronx River Parkway can be made in the vicinity of the 100/119 overlap. NY 100 then splits off to the north using Hillside Avenue and Grasslands Road as it goes around the perimeter of Westchester Community College. At a four-way intersection between Grasslands Road, Knollwood Road, and Bradhurst Avenue, NY 100 meets with the north end of NY 100A (Knollwood Road) and the east end of NY 100C. NY 100 makes a right-hand turn to follow Bradhurst Avenue north from the junction while Grasslands Road continues west as NY 100C. Bradhurst Avenue leads into the hamlet of Hawthorne within the town of Mount Pleasant, crossing over the Sprain Brook Parkway along the way. NY 100 subsequently shifts onto Briarcliff-Peekskill Parkway (NY 9A), a continuation of the Saw Mill River Road, after using a brief section of NY 141 (Broadway). From this junction, the parkway (carrying 9A and 100) is a limited access highway (or "freeway") as it continues north alongside the Taconic State Parkway. It has an interchange with NY 117 (Bedford Road) about 1.1 miles (1.8 km) north of the 9A/100 merge, with all exits and entrances on the left. 9A and 100 then enter the eastern edge of the village of Briarcliff Manor.[4]

NY 100, NY 100A, and NY 100C near the Sprain Brook Parkway

NY 100 then branches off on its own again in Briarcliff Manor, with NY 9A continuing north along the Briarcliff–Peekskill Parkway and NY 100 continuing northeast on the Saw Mill River Road, which roughly follows New York Central's old Putnam Division railroad. Many of the railroad's old stations can still be found along the highway. NY 100 passes through New Castle and meets NY 133 in the hamlet of Millwood, where access to the Taconic State Parkway can also be made. From here, NY 100 then follows the path of the Croton Turnpike (alternatively known in the area as Somerstown Turnpike and also as Saw Mill River Road). The road continues into the town of Yorktown, passing by the hamlet of Kitchawan. NY 100 then crosses the Croton Reservoir on Pines Bridge. After crossing the reservoir, NY 118 splits off to the west on Saw Mill River Road, while NY 100 continues northeast on the Croton Turnpike.[4]

The Elephant Hotel, at Route 100's northern terminus in Somers.

The Croton Turnpike continues into the town of Somers, passing by some of the last remaining rural areas in Westchester County, including Muscoot Farm, a county owned early-1900s interpretive farm. North of the farm NY 100 intersects with NY 35 in the hamlet of Whitehall Corners, site of a PepsiCo complex. In its northern extremes, NY 100 roughly parallels the Croton Reservoir on the north side before meeting up with US 202 in the hamlet of Somers, where it ends opposite the Elephant Hotel.[4]

History

Early roads

The southernmost section of NY 100, known as "Central Avenue", appeared in maps by 1888. It was constructed as a plank road in 1874 connecting Macombs Dam Bridge (then known as Central Bridge) to Westchester County. The road continues south into the Bronx as Jerome Avenue, which was originally also called Central Avenue.[5]

The middle section of NY 100 uses the southernmost segment of the Briarcliff-Peekskill Parkway, which is a continuation of the Saw Mill River Road, between Hawthorne and Briarcliff Manor, sharing it with NY 9A. The Saw Mill River Road splits from the parkway along with NY-100, and NY-100 uses the Saw Mill River Road until it splits from NY-100 in the Town of Yorktown to follow NY-118. The Saw Mill River Road is an early colonial road connecting many different hamlets and villages in Westchester County.[6] It follows along the path of various rivers and brooks, the most notable of which being the road's namesake, the Saw Mill River, as it winds its way to the north of the county. The road is now used as parts of several state routes, including NY 9A, NY 100, and NY 118. The segment used by NY-100 mostly follows the Pocantico River.

The northernmost section of NY 100 runs along a part of the "Croton Turnpike", an early private toll road that was chartered in 1807.[7] The Croton Turnpike connects the village of Ossining (then called Sing Sing) to the hamlet of Somers via Kitchawan. The road was made free in 1849.[8] The Saw Mill River Road was rerouted to overlap the Croton Turnpike as it navigates around and across the Croton Reservoir, which was constructed between 1837 and 1842.[9]

In 1908, the New York State Legislature created Route 2, an unsigned legislative route extending from the New York City line at Yonkers to the Columbia County village of Valatie. Route 2 followed Central Avenue (now NY 100) north through Yonkers to Hartsdale, where it veered west to bypass White Plains on modern NY 100A, NY 100B, and NY 119. It rejoined what is now NY 100 at the junction of Tarrytown Road (NY 119) and Hillside Avenue and followed it north along Hillside Avenue and Grasslands Road to the modern junction of NY 100, NY 100A, and NY 100C, at which point Route 2 continued west toward the Hudson River on current NY 100C.[10][11]

Designation

NY 100 was first designated in the 1930 renumbering of state highways in New York, when many of the state roads in Westchester County were first publicly posted with route numbers. Originally, it went north from the Croton Reservoir to US 6 (now NY 6N) in Mahopac Falls on what is now NY 118, Baldwin Place Road, and Myrtle Avenue. Also assigned at this time was NY 118, which began adjacent to the Croton Reservoir at NY 100 and proceeded northeast along the Croton Turnpike to NY 22 in Croton Falls via modern NY 100 and US 202.[2][12] The alignments of NY 100 and NY 118 north of the Croton Reservoir were swapped c. 1939, placing NY 118 on the more westerly alignment and NY 100 on the Croton Turnpike between the reservoir and Croton Falls.[13][14]

In December 1934, at the insistence of the Automobile Club of New York, several numbered routes were extended and signed within New York City, with NY 100 being one of these routes. NY 100 was extended south from the Yonkers line in the Bronx along Jerome Avenue to the Grand Concourse. NY 100 crossed into Manhattan via East 149th Street and the 145th Street Bridge. In Manhattan, NY 100 continued south along Lenox Avenue, 110th Street, Fifth Avenue, 96th Street, and Park Avenue, ending at Houston Street (NY 1A). South of Fordham Road, NY 100 was overlapped with NY 22 all the way to Houston Street.[15] The NY 100 designation was removed from New York City following the opening of the Major Deegan Expressway in 1956.[16]

In 1934, US 202 was designated and overlapped with NY 118 (later NY 100) from Somers to Croton Falls.[17] The overlap between NY 100 and US 202 lasted as late as 1990.[18] NY 100 was cut back to end at US 202 in Somers by 2004.[19] The south end of NY 100 had been at the New York City line since 1956;[16] however, as of 2007, NYSDOT recognizes the Cross County Parkway underpass as the official southern terminus of NY 100.[20]

Expressway plans

In April 1956, the Westchester County Planning Commission recommended that a new expressway should be built along the current NY 100 north of White Plains. The road was to be an extension of the Central Corridor Expressway, which was proposed as NY 125. This 21-mile (34 km) extension was stretch to Putnam County.[21] The area was a high-priority corridor, stretching from the Cross-Westchester Expressway (I-287) to the proposed Northern Westchester Expressway (NY 35). North of NY 35, the area was a medium-priority corridor, ending at US 6 in Mahopac. This plan never materialized and Interstate 684 along the NY 22 corridor was built instead.[21]

Suffixed routes

Major intersections

The entire route is in Westchester County.

Locationmi[1]kmDestinationsNotes
Yonkers0.000.00
 Central Park Avenue south / Cross County Parkway to Bronx River Parkway		Exit 4 on Cross County Parkway; continuation south without designation
0.100.16

 I-87 south / New York Thruway south – New York City		Southbound exit and northbound entrance, exit 5 on I-87 / Thruway
Midland AvenueInterchange
0.200.32

 I-87 north / New York Thruway north – Tappan Zee Bridge, Albany		Northbound exit and southbound entrance; exit 4 on I-87 / Thruway
1.001.61Palmer RoadInterchange
1.111.79 Sprain Brook ParkwayNo northbound exit to southbound Parkway or southbound entrance from northbound Parkway
1.722.77Tuckahoe RoadInterchange
Town of Greenburgh4.727.60 Ardsley Road – Ardsley, Scarsdale, Scarsdale StationCommunity of Edgemont (Greenville)
6.8911.09
 NY 100A north (Hartsdale Avenue) – Hartsdale, Scarsdale, Hartsdale Station		Southern terminus of NY 100A; community of Hartsdale
White Plains8.6113.86
 NY 119 east / Bronx River Parkway – White Plains, Scarsdale, Valhalla, White Plains Station		Southern terminus of concurrency with NY 119
I-287 – Tappan Zee Bridge, Rye, TarrytownNorthbound exit and southbound entrance; exit 5 on I-287
9.1014.65

 NY 119 west (Tarrytown Road) to NY 100B – Elmsford		Northern terminus of concurrency with NY 119
9.5015.29
 I-287 west		Entrance to both directions from I-287 westbound; exit 5 on I-287
Greenburgh–Mount Pleasant
town line		12.2619.73
 NY 100A south


 NY 100C west to Sprain Brook Parkway		Northern terminus of NY 100A; eastern terminus of NY 100C
Town of Mount Pleasant13.6021.89

 Hospital Road to Sprain Brook Parkway south		To Westchester County Medical Center
13.6722.00

 Sprain Brook Parkway to Taconic State Parkway / Saw Mill River Parkway – New York City, Albany
14.8523.90




 NY 141 east to Taconic State Parkway south / Sprain Brook Parkway south – Hawthorne		Southern terminus of concurrency with NY 141; hamlet of Hawthorne
15.0224.17Southern end of freeway

 NY 9A south (Saw Mill River Road) / NY 141 (end) – Elmsford		Interchange; southern terminus of concurrency with NY 9A; western terminus of NY 141
15.0224.17
 Saw Mill River Parkway south – New York City, Yonkers		Southbound exit only
16.1525.99

 NY 117 (Bedford Road) to Taconic State Parkway north – Sleepy Hollow, Pleasantville, Albany		Left exit and entrance
16.8527.12


 Taconic State Parkway south to Sprain Brook Parkway south – New York City		Southbound exit and northbound entrance; exit 5 on Taconic Parkway
Briarcliff Manor18.1329.18
 NY 9A north (Briarcliff-Peekskill Parkway) / Pleasantville Road – Peekskill, Bear Mountain Bridge		Northern terminus of concurrency with NY 9A
Northern end of freeway
Town of New Castle20.7133.33

 NY 133 west / Taconic State Parkway south – Ossining, New York City		Southern terminus of concurrency with NY 133; exit 8 on Taconic Parkway
20.8533.55
 Taconic State Parkway north – Albany
21.1033.96
 NY 133 east – Chappaqua, Mount Kisco		Northern terminus of concurrency with NY 133
21.5634.70
 NY 120 south – Chappaqua, Mount Kisco		Northern terminus of NY 120; hamlet of Millwood
Town of Yorktown23.2337.39
 NY 134 west – Ossining		Eastern terminus of NY 134
Croton Reservoir24.00–
24.90		38.62–
40.07		Pines Bridge
Town of Yorktown24.9440.14


 NY 118 north to Taconic State Parkway north – Yorktown Heights		Southern terminus of NY 118
Town of Somers29.3047.15 NY 35 – Yorktown Heights, Katonah, Katonah StationHamlet of Whitehall Corners
29.8848.09
 NY 139 north – Lincolndale		Southern terminus of NY 139
32.3552.06
 NY 138 east – Goldens Bridge, Goldens Bridge Station		Western terminus of NY 138
33.2753.54 US 202 – Brewster, Yorktown, Purdys StationNorthern terminus; hamlet of Somers
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

References

  1. 1 2 3 4 5 6 "2008 Traffic Volume Report for New York State" (PDF). New York State Department of Transportation. June 16, 2009. pp. 156–157. Retrieved January 30, 2010.
  2. 1 2 3 Road Map of New York (Map). Cartography by General Drafting. Standard Oil Company of New York. 1930.
  3. 1 2 County and State Roads and Parks (PDF) (Map). Westchester County Department of Planning. February 2010. Archived from the original (PDF) on December 29, 2009. Retrieved March 31, 2010.
  4. 1 2 3 4 1977–2007 I Love New York State Map (Map). I Love New York. 2007.
  5. ↑ McNamara, John (1996). History in Asphalt: The Origin of Bronx Street and Place Names (3rd ed.). The Bronx County Historical Society. p. 116. ISBN 978-0-941980-16-6. Retrieved March 31, 2010.
  6. ↑ "On old Saw Mill River Road". The New York Times. July 19, 1914. p. X1.
  7. ↑ Journal of the Assembly of the State of New York. 1835. – lists an 1835 amendment to "An act to incorporate the Croton Turnpike company, passed April 6th, 1807"
  8. ↑ Journal of the Assembly of the State of New York. New York State Assembly. 1849. – lists the act to repeal the charter of the turnpike
  9. ↑ "History of Westchester". Westchester County. Archived from the original on April 23, 2008. Retrieved May 16, 2008.
  10. ↑ State of New York Department of Highways (1909). The Highway Law. Albany, NY: J. B. Lyon Company. pp. 53–54. Retrieved June 6, 2010.
  11. ↑ New York State Department of Highways (1920). Report of the State Commissioner of Highways. Albany, NY: J. B. Lyon Company. pp. 497–498. Retrieved June 6, 2010.
  12. ↑ New York in Soconyland (Map). Cartography by General Drafting. Standard Oil Company of New York. 1929.
  13. ↑ New York Road Map for 1938 (Map). Cartography by General Drafting. Esso. 1938.
  14. ↑ New York (Map). Cartography by General Drafting. Standard Oil Company. 1939.
  15. ↑ "Mark Ways in the City". The New York Times. December 16, 1934. p. XX12.
  16. 1 2 Anderson, Steve. "State and US Roads in New York City". NYCRoads. Archived from the original on February 19, 2014. Retrieved March 31, 2010.
  17. ↑ Weingroff, Richard (January 9, 2009). "U.S. 202 – Maine to Delaware". Highway History. Federal Highway Administration. Retrieved March 31, 2010.
  18. ↑ Croton Falls Digital Raster Quadrangle (Map). 1:24,000. New York State Department of Transportation. 1990. Retrieved March 31, 2010.
  19. ↑ New York State Department of Transportation (October 2004). Official Description of Highway Touring Routes, Scenic Byways, & Bicycle Routes in New York State (PDF). Retrieved July 17, 2009.
  20. ↑ "2007 Traffic Volume Report for New York State" (PDF). New York State Department of Transportation. July 25, 2008. p. 155. Retrieved January 30, 2010.
  21. 1 2 Anderson, Steve. "NY 100/125 – Central Corridor Expressway (unbuilt)". NYCRoads. Retrieved November 22, 2007.
  22. 1 2 Shell Road Map – New York (Map). Cartography by H.M. Gousha Company. Shell Oil Company. 1937.
  23. 1 2 New York Info-Map (Map). Cartography by Rand McNally and Company. Gulf Oil Company. 1940.
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