Interstate 86

Westbound I-86 and Southern Tier Expressway markers
near Randolph.
(Mark Sinsabaugh, 09/28/2018)

Standalone westbound I-86 reassurance marker
near Windsor.
(Douglas Kerr, 08/24/2009)

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Western Segment
Western Terminus: PA Line at Findley Lake
Eastern Terminus: NY 26, Endicott
Length: 236.49 miles (380.75 km)
Orientation: East-West
Counties:

 Chautauqua, Cattaraugus, Allegany, Steuben, Chemung, Tioga
Cities:

 Jamestown, Salamanca, Olean, Corning, Elmira
Villages:


 Sherman, Falconer, Cuba, Angelica, Almond, Bath, Savona, Painted Post, Riverside, Horseheads, Waverly
Towns:







 Mina, Sherman, North Harmony, Ellery, Ellicott, Poland, Randolph, Cold Spring, Red House, Salamanca, Carrollton, Great Valley, Allegany, Olean, Hinsdale, Cuba, Friendship, Amity, Angelica, West Almond, Almond, Hornellsville, Fremont, Howard, Avoca, Bath, Campbell, Erwin, Corning, Big Flats, Horseheads, Elmira, Ashland, Chemung
Name(s): Southern Tier Expressway

Eastern Segment
Western Terminus: I-81, Binghamton
Eastern Terminus: NY 79, Windsor
Length: 14.41 miles (23.20 km)
Orientation: East-West
Counties: Broome
Cities: None
Villages: Windsor
Towns: Kirkwood, Windsor

Additional History:
December 3, 1999 - The I-86 designation was assigned to the section of NY 17 west of the Steuben-Chemung County line.
May 13, 2004 - The I-86 designation was extended east into Chemung County to NY 14 in Horseheads.
May 1, 2006 - The I-86 designation is added to NY 17 between I-81 in Kirkwood and NY 79 in Windsor. I-86 is also cosigned with I-81 from Binghamton to Kirkwood.
March 28, 2008 - I-86 was extended further east to NY 352 in Elmira
2013 - I-86 was extended east to US 220 in Waverly.
November 14, 2024 - I-86 was extended east to NY 26 in Endicott.

With the most recent extension of the I-86 designation from Waverly to Endicott, the eight mile section from Endicott to the I-81 split is the only section west of Binghamton not officially designated as I-86 (Signs are posted, but acceleration and deceleration lanes need to be improved in the area order to meet Interstate standards). Ultimately, the I-86 designation will span the entire expressway sections of NY 17 from Findley Lake to Harriman though it is not expected to happen until at least the 2030s.

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Mile Desc. EAST (Read Down) WEST (Read Up)
. .

0.00 JCT

(ST)
.
(Douglas Kerr, 09/15/2007)
. MP .
1.03
.
(Douglas Kerr, 09/15/2007)
9.17

(Douglas Kerr, 00/00/0000)
(Mark Sinsabaugh, 09/28/2018)
15.34
.
(Mark Sinsabaugh, 09/28/2018)
18.86

(Douglas Kerr, 00/00/0000)
(Mark Sinsabaugh, 09/28/2018)
20.12 .

(Douglas Kerr, 00/00/0000) 		.
20.19 TO
.
(Mark Sinsabaugh, 09/28/2018)
26.13 Reference Route 953B / TO
.
(Mark Sinsabaugh, 09/28/2018)
27.90

(Douglas Kerr, 00/00/0000)
(Mark Sinsabaugh, 09/28/2018)
30.59

(Douglas Kerr, 00/00/0000)
(Douglas Kerr, 09/15/2007)
35.64

(Douglas Kerr, 00/00/0000)
(Douglas Kerr, 09/15/2007)
37.46 .

(Mark Sinsabaugh, 09/28/2018)
38.93 Reference Route 953A / TO

(Mark Sinsabaugh, 09/28/2018)
41.98 Reference Route 952M / TO

(Mark Sinsabaugh, 09/28/2018)
48.48 (ET)

(Douglas Kerr, 00/00/0000)
(Mark Sinsabaugh, 09/28/2018)
48.88 .
51.21 (NT)

(Mark Sinsabaugh, 06/16/2018) 		.
55.03 Allegany State Park

(Mark Sinsabaugh, 06/16/2018) 		.
58.74 (WT)

(Mark Sinsabaugh, 06/16/2018)
(Douglas Kerr, 09/15/2007)
. MP .
61.05 NORTH
.
(Mark Sinsabaugh, 06/19/2004)
. MP .
. MP .
68.12

SOUTH / (ST)
.
(Douglas Kerr, 00/00/0000)
. MP .
70.80 .
74.67 Reference Route 952W / TO

(Douglas Kerr, 09/16/2007) 		.
77.87
79.37

(Douglas Kerr, 00/00/0000) 		.
85.29
90.26 .
91.95
.
(Douglas Kerr, 03/06/2009)
99.32 (NT)
105.05
.
(Douglas Kerr, 03/06/2009)
109.15
116.38

.
(Douglas Kerr, 09/15/2007)
124.21 TO
124.81 .
128.90

(Douglas Kerr, 00/00/0000)
(Douglas Kerr, 09/15/2007)
138.58 Reference Route 962B
145.77 (ST)
.
(Mark Sinsabaugh, 04/22/2018)
146.90

(Douglas Kerr, 09/30/2006)
(Mark Sinsabaugh, 04/22/2018)
150.10 (ST)

(Douglas Kerr, 09/30/2006)
(Mark Sinsabaugh, 04/22/2018)
153.21 / TO

(Douglas Kerr, 09/30/2006)
(Mark Sinsabaugh, 04/22/2018)
157.00 (ST)
.
(Mark Sinsabaugh, 09/11/2002)
161.80 (Formerly ) / TO

(Douglas Kerr, 09/30/2006)
(Douglas Kerr, 09/15/2007)
165.84 TO
.
(Mark Sinsabaugh, 06/26/2021)
168.11

.
(Mark Sinsabaugh, 04/29/2006)
168.67

(Exit 12-13, NT) (NT) / (Exit 12-13, NT) (NT)

(Douglas Kerr, 09/16/2007)
(Mark Sinsabaugh, 06/06/2015)
169.05 .
.
(Mark Sinsabaugh, 06/06/2015)
169.62

/ TO / TO (WT)
.
(Mark Sinsabaugh, 09/30/2006)
172.09


(Douglas Kerr, 09/30/2006)
(Mark Sinsabaugh, 04/05/2014)
174.80

(Mark Sinsabaugh, 08/18/2019)
(Mark Sinsabaugh, 04/05/2014)
177.17

(Mark Sinsabaugh, 08/18/2019)
(Mark Sinsabaugh, 04/05/2014)
178.11 .
.
(Mark Sinsabaugh, 04/05/2014)
179.45

(Douglas Kerr, 06/18/2006)
(Mark Sinsabaugh, 02/01/2014)
181.14

(Mark Sinsabaugh, 08/18/2019)
(Daniel Cummings, 03/21/2024)
182.90


(Mark Sinsabaugh, 08/18/2019)
(Mark Sinsabaugh, 02/01/2014)
183.86 .
.
(Daniel Cummings, 03/21/2024)
184.30 .

(Mark Sinsabaugh, 02/02/2013) 		.
184.73

(Mark Sinsabaugh, 02/02/2013)
(Daniel Cummings, 03/18/2024)
185.29

(Douglas Kerr, 06/14/2009)
(Douglas Kerr, 09/15/2007)
186.08

(ST)

(Douglas Kerr, 03/15/2009)
(Douglas Kerr, 09/15/2007)
190.26

(ET)

(Mark Sinsabaugh, 04/10/2007)
(Mark Sinsabaugh, 12/15/2002)
196.04

(Mark Sinsabaugh, 08/18/2019)
(Mark Sinsabaugh, 02/01/2014)
198.04


(Mark Sinsabaugh, 08/18/2019)
(Mark Sinsabaugh, 02/01/2014)
201.32 (ET)

(Mark Sinsabaugh, 04/10/2007)
(Mark Sinsabaugh, 02/01/2014)
203.58

(Mark Sinsabaugh, 03/21/2007)
(Mark Sinsabaugh, 04/14/2007)
205.15 .
.
(Mark Sinsabaugh, 04/14/2007)
205.35 .

.
(Mark Sinsabaugh, 06/25/2022)
. MP .
205.65

WEST (ET) / (NT)

(Mark Sinsabaugh, 03/21/2007)
(Mark Sinsabaugh, 04/14/2007)
206.71 .


(Mark Sinsabaugh, 03/21/2007)
(Mark Sinsabaugh, 04/14/2007)
206.90 (ST) / (NT)

(Mark Sinsabaugh, 03/21/2007)
(Mark Sinsabaugh, 04/14/2007)
214.99

(Mark Sinsabaugh, 03/21/2007)
(Mark Sinsabaugh, 02/01/2014)
219.72

(Mark Sinsabaugh, 03/21/2007)
(Mark Sinsabaugh, 04/14/2007)
223.13 (ST) / (ET)

(Mark Sinsabaugh, 03/21/2007)
(Mark Sinsabaugh, 04/07/2004)
224.96 TO / TO

(Mark Sinsabaugh, 04/10/2007)
(Mark Sinsabaugh, 04/14/2007)
230.45 / TO / TO

(Mark Sinsabaugh, 04/10/2007)
(Mark Sinsabaugh, 02/01/2014)
232.71 .
.
(Mark Sinsabaugh, 06/25/2022)
236.49

(Mark Sinsabaugh, 04/10/2007)
(Mark Sinsabaugh, 04/14/2007)

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Mile Desc. EAST (Read Down) WEST (Read Up)
. . .
0.00

NORTH (Exit 13A)

(Mark Sinsabaugh, 04/17/2025)
. MP .
0.48
(73)

(Mark Sinsabaugh, 04/11/2025)
(Mark Sinsabaugh, 04/15/2023)
0.87
(74)		 .
.
(Mark Sinsabaugh, 04/17/2025)
4.16
(74)		 .

(Mark Sinsabaugh, 04/11/2025) 		.
. MP .
4.39 SOUTH (Exit 8) / TO NORTH / (ES, WT)

(Mark Sinsabaugh, 04/21/2018)
(C.C. Slater, 12/26/2005)
. MP .
6.08

.
(Douglas Kerr, 02/25/2009)
8.09

(Douglas Kerr, 09/30/2009)
(Douglas Kerr, 07/28/2009)
11.02
. MP .
14.41
(ET)		 / EAST

(Douglas Kerr, 09/30/2009)
(C.C. Slater, 12/26/2005)
. . .

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What will eventually be the eastern end of I-86 at the interchange with I-87, New York State Thruway Exit 16 in Harriman.
(Mark Sinsabaugh, 03/17/2023)
If you have photos to submit, please contact us.

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Alps Roads (Steve Alpert)
East Coast Roads (David Golub)
New York State Roads (Valerie Deane)
Wikipedia: Interstate 86


Page Created: October 13, 2006 | Page Updated: April 19, 2025