New York State Route 403

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New York State Route 403 marker

New York State Route 403
Cat Rock Road
Map of New York State Route 403
Map of Putnam County in southeastern New York with NY 403 highlighted in red
Route information
Maintained by NYSDOT
Length: 2.27 mi[3] (3.65 km)
Existed: mid-1930s[1][2] – present
Major junctions
South end: US 9 in Philipstown
North end: NY 9D in Philipstown
Counties: Putnam
Highway system
NY 402 NY 404

New York State Route 403 (NY 403) is a short state highway located entirely within Putnam County. It connects NY 9D in Philipstown at its northern/western end to US 9 in Graymoor, where the Appalachian Trail crosses both highways. At that intersection, NY 403 is signed as a route to the Bear Mountain Bridge, although it is a rather circuitous route there.

Half of its length is uphill going south. It is also known as Cat Rock Road.

Route description[edit]

Route 403 begins at an oblique intersection with US 9 in Graymoor, where the Appalachian Trail crosses both highways. At first it travels to the north, passing an old country estate.

NY 403 begins here at NY 9D in Philipstown

It then turns west to the pass between Fort Hill and Castle Rock. As it descends again it passes the Walker House, a large Queen Anne given by railroad magnate Samuel Sloan to one of his daughters. At its northern terminus, the intersection with NY 9D known as Garrison Four Corners, marked by another historic house, Ralph Adams Cram's The Birches.[4]


The entirety of NY 403 was assigned at some point between 1933 and 1936.[1][2]

Major intersections[edit]

The entire route is in Philipstown, Putnam County.

mi[3] km Destinations Notes
0.00 0.00 US 9
2.27 3.65 NY 9D
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]


  1. ^ a b Texaco Road Map – New York (Map). Cartography by Rand McNally and Company. Texas Oil Company. 1933. 
  2. ^ a b New York (Map). Cartography by General Drafting. Standard Oil Company. 1936. 
  3. ^ a b "2008 Traffic Data Report for New York State" (PDF). New York State Department of Transportation. June 16, 2009. p. 308. Retrieved January 10, 2010. 
  4. ^ Google (April 21, 2008). "overview map of NY 403" (Map). Google Maps. Google. Retrieved April 21, 2008. 

External links[edit]

KML is from Wikidata