Interstate 81

Northbound I-81 reassuance shield near Preble. (Mark Sinsabaugh, 04/02/2007)

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Southern Terminus:	PA Line at Conklin
Northern Terminus:	US-Canada Border at Wellesley Island (Continues as ON 137)
Length:	183.42 miles (295.31 km)
Orientation:	North-South
Counties:	Broome, Cortland, Onondaga, Oswego, Jefferson
Cities:	Binghamton, Cortland, Syracuse, Watertown
Villages:	Whitney Point, Marathon, Homer, North Syracuse, Parish, Pulaski, Sandy Creek, Adams
Towns:	Kirkwood, Dickinson, Chenango, Barker, Triangle, Lisle, Marathon, Lapeer, Virgil, Cortlandville, Homer, Preble, Tully, Lafayette, Onondaga, Salina, Clay, Cicero, Parish, Mexico, Richland, Sandy Creek, Ellisburg, Adams, Hounsfield, Watertown, Pamelia, Orleans, Alexandria
Name(s):	American Legion Memorial Highway
History:	Construction began in 1954, with the last sections opening in 1971. Sometime in the next few years, a segment of I-81 between Exits 16A and 29 will be relocated to the current I-481 alignment as the elevated section of I-81 in downtown Syracuse is expected to be demolished and replaced with a grade level boulevard. The project is scheduled to begin in late 2022 and last about five years.

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Mile	Desc.	NORTH (Read Down)	SOUTH (Read Up)
.	.
0.00	JCT (ST)
		(Mark Sinsabaugh, 08/26/2018)	(Mark Sinsabaugh, 04/21/2018)
3.98		/ TO / TO
		(Douglas Kerr, 05/20/2009)	(Douglas Kerr, 11/03/2007)
8.47		(WT, ES) EAST (Exit 75) / TO
		(Mark Sinsabaugh, 08/26/2018)	(Mark Sinsabaugh, 04/21/2018)
.	MP		.
8.72		.
		.	(Douglas Kerr, 05/20/2009)
12.01			.
		(Mark Sinsabaugh, 08/26/2018)	.
12.40
		(Douglas Kerr, 08/18/2009)	(Mark Sinsabaugh, 08/26/2018)
.	MP	.
12.88		WEST (Exit 73)
		(Mark Sinsabaugh, 08/26/2018)	(Mark Sinsabaugh, 04/09/2016)
13.54			/ TO (WT)
		(Mark Sinsabaugh, 08/26/2018)	(Mark Sinsabaugh, 04/14/2007)
14.77		(WT)	.
		(Mark Sinsabaugh, 09/16/2005)	.
15.66		/ TO (ST)	.
		(Mark Sinsabaugh, 04/10/2007)	.
16.42		.	/ TO (ST)
		.	(Douglas Kerr, 10/04/2009)
21.52
		(Mark Sinsabaugh, 04/19/2009)	(Mark Sinsabaugh, 03/21/2015)
28.83		/TO TO /TO (WT)	.
		(Mark Sinsabaugh, 04/19/2009)	.
30.23		.	/ TO / TO (WT)
		.	(Douglas Kerr, 02/08/2010)
35.68	.
		.	(Mark Sinsabaugh, 03/21/2015)
38.17		/ TO	/ TO
		(Douglas Kerr, 11/04/2009)	(Douglas Kerr, 12/13/2009)
49.90		/ TO	/ TO
		(Douglas Kerr, 09/04/2009)	(Douglas Kerr, 10/04/2009)
52.27
		(Douglas Kerr, 12/12/2009)	(Mark Sinsabaugh, 05/31/2009)
53.94		/
		(Douglas Kerr, 12/12/2009)	(Mark Sinsabaugh, 06/17/2017)
62.75
		(Mark Sinsabaugh, 04/02/2007)	(Mark Sinsabaugh, 06/17/2017)
65.04	.
		(Mark Sinsabaugh, 04/02/2007)	(Mark Sinsabaugh, 05/31/2009)
66.51		/ TO TO / TO	/ TO TO / TO
		(Mark Sinsabaugh, 04/02/2007)	(Mark Sinsabaugh, 04/21/2018)
73.13		/ TO	/ TO
		(Mark Sinsabaugh, 04/02/2007)	(Mark Sinsabaugh, 04/21/2018)
78.04
		(Mark Sinsabaugh, 04/02/2007)	(Mark Sinsabaugh, 04/21/2018)
81.37		(ST)
		(Mark Sinsabaugh, 04/02/2007)	(Mark Sinsabaugh, 05/03/2008)
82.35		TO
		.	(Mark Sinsabaugh, 05/03/2008)
83.77		TO / TO
		(Mark Sinsabaugh, 12/11/2009)	(Mark Sinsabaugh, 05/03/2008)
84.43		(Exit 12)	EAST (Exit 12)
		(Mark Sinsabaugh, 12/11/2009)	(Mark Sinsabaugh, 05/03/2008)
84.74		.
		.	(Mark Sinsabaugh, 08/03/2008)
84.83		.
		.	(Mark Sinsabaugh, 08/03/2008)
85.28		.
		.	(Mark Sinsabaugh, 05/03/2008)
85.31		TO	.
		(Mark Sinsabaugh, 04/13/2008)	.
86.39			/ TO WEST /
		(Mark Sinsabaugh, 04/13/2008)	(Mark Sinsabaugh, 03/02/2019)
87.78
		(Mark Sinsabaugh, 05/15/2009)	(Mark Sinsabaugh, 05/03/2008)
88.18		(Exit 36)
		(Douglas Kerr, 11/28/2008)	(Mark Sinsabaugh, 08/03/2008)
89.67			.
		(Mark Sinsabaugh, 08/03/2008)	.
90.33			TO
		(Douglas Kerr, 12/12/2009)	(Mark Sinsabaugh, 06/28/2009)
91.16		.
		.	(Mark Sinsabaugh, 06/28/2009)
92.54		(NT, Exit 9) / (ST, Exit 9)
		(Douglas Kerr, 12/12/2009)	(Mark Sinsabaugh, 06/28/2009)
95.03
		(Mark Sinsabaugh, 03/02/2019)	(Mark Sinsabaugh, 06/28/2009)
98.96		/ TO
		(Douglas Kerr, 09/10/2009)	(Mark Sinsabaugh, 06/28/2009)
99.15
102.78
		(Douglas Kerr, 09/10/2009)	.
111.08		TO
		(Douglas Kerr, 09/10/2009)	.
114.72
		(Douglas Kerr, 07/23/2004)	.
118.15		/ TO
121.56		/ TO	.
122.34		.	TO / TO
		.	(Mark Sinsabaugh, 10/09/2020)
128.15		/ TO	/ TO
		.	(Mark Sinsabaugh, 10/09/2020)
129.98	.
		.	(Mark Sinsabaugh, 05/20/2009)
130.68
		.	(Mark Sinsabaugh, 05/20/2009)
132.71		TO
		.	(Mark Sinsabaugh, 05/20/2009)
134.59
		(Douglas Kerr, 03/21/2009)	(Mark Sinsabaugh, 05/20/2009)
140.15
		(Douglas Kerr, 03/21/2009)	(Mark Sinsabaugh, 05/20/2009)
144.28		(ET)
		(Douglas Kerr, 03/21/2009)	.
145.83		Reference Route 971P / TO
		(Douglas Kerr, 03/21/2009)	.
148.19
		(Mark Sinsabaugh, 04/22/2018)	.
152.50
		.	(Douglas Kerr, 08/23/2008)
153.47
		.	(Douglas Kerr, 04/01/2007)
154.95
		(Douglas Kerr, 07/23/2004)	(Douglas Kerr, 04/01/2007)
157.57
		.	(Douglas Kerr, 04/01/2007)
158.00		(WT)
		(George Bourey, 06/28/2020)	(George Bourey, 06/28/2020)
169.07
		(Mark Sinsabaugh, 09/10/2011)	(Douglas Kerr, 04/01/2007)
178.04
		(Douglas Kerr, 04/24/2003)	(Douglas Kerr, 04/01/2007)
.	.		.
179.70
		(Douglas Kerr, 00/00/0000)	(Douglas Kerr, 04/01/2007)
182.93
		(Douglas Kerr, 00/00/0000)	.
183.42	.	Customs - Border Patrol STOP FOR INSPECTION
.	.	.
183.42	JCT (NT)	TO
.	.

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AARoads Interstate Guide: I-81 (Alex Nitzman and Andy Field) Alps Roads (Steve Alpert) East Coast Roads (David Golub) New York State Roads (Valerie Deane) Thousand Islands Bridge Authority Wikipedia: Interstate 81

Page Created: October 3, 2006 | Page Updated: July 8, 2021