New York 347
(Happague to Mt. Sinai, 1966-Present)


Westbound NY 347 reassurance marker near Stony Brook.
(Douglas Kerr, 12/25/2006)


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Western Terminus: NY 454 /Northern State Parkway, Happague
Eastern Terminus: NY 25A, Mount Sinai
Length: 14.48 miles (23.31 km)
Orientation: East-West
Counties: Suffolk
Cities: None
Villages: Lake Grove
Towns: Smithtown, Islip, Brookhaven


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Mile Desc. EAST (Read Down) WEST (Read Up)
. . .
0.00 JCT
(WT)
WEST / (ET)
.
(Douglas Kerr, 12/26/2004)
. MP .
. MP .
2.19 JCT EAST

(Douglas Kerr, 08/15/2009)

(Mark Sinsabaugh, 03/19/2023)
3.00 JCT

(Mark Sinsabaugh, 03/18/2023)

(Mark Sinsabaugh, 03/19/2023)
6.91 JCT

(Douglas Kerr, 01/01/2010)

(Douglas Kerr, 01/03/2010)
7.54 . .
9.14 . .
13.44 JCT

(Mark Sinsabaugh, 03/18/2023)

(Douglas Kerr, 12/23/2006)
14.48 JCT
(ET)

(Mark Sinsabaugh, 03/18/2023)
. . .


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No photos have been submitted.

If you have photos to submit, please contact us.


About | Junction List | Photos/Videos | Links

Alps Roads (Steve Alpert)
East Coast Roads (David Golub)
New York State Roads (Valerie Deane)
NYC Roads: North Shore Expressway (Steve Anderson)
Wikipedia: New York 347



(1930-34)

(1934-52)


Page Created: July 18, 2006 | Page Updated: March 26, 2023