United States 20


Eastbound US 20 reassurance marker in Depew.
(Brian Tabor, 04/28/2008)

Eastbound US 20 reassurance marker near Bridgewater.
(Mark Sinsabaugh, 05/20/2008)


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Western Terminus: PA Line at Ripley
Eastern Terminus: MA Line at New Lebanon
Length: 372.33 miles (599.45 km) 3rd longest route in state
Orientation: East-West
Counties:

Chautauqua, Erie, Genesee, Livingston, Ontario, Seneca, Cayuga, Onondaga, Madison, Oneida, Otsego, Herkimer, Schoharie, Schenectady, Albany, Rensselaer, Columbia
Cities: Canandaigua, Geneva, Auburn, Albany, Rensselaer
Villages:


Westfield, Brocton, Fredonia, Silver Creek, Depew, Lancaster, Alden, Avon, Lima, Bloomfield, East Bloomfield, Waterloo, Seneca Falls, Skaneateles, Cazenovia, Morrisville, Madison, Bridgewater, West Winfield, Richfield Springs, Esperance, Nassau
Towns:






Ripley, Westfield, Portland, Pomfret, Sheridan, Hanover, Brant, Evans, Eden, Hamburg, Orchard Park, West Seneca, Cheektowaga, Lancaster, Alden, Darien, Alexander, Bethany, Pavilion, York, Caledonia, Avon, Lima, West Bloomfield, East Bloomfield, Canandaigua, Hopewell, Seneca, Geneva, Waterloo, Seneca Falls, Tyre, Montezuma, Aurelius, Sennett, Skaneateles, Marcellus, Onondaga, Lafayette, Otisco, Pompey, Cazenovia, Nelson, Eaton, Madison, Bridgewater, Winfield, Warren, Plainfield, Richfield, Springfield, Cherry Valley, Sharon, Carlisle, Esperance, Duanesburg, Princetown, Guilderland, East Greenbush, Schodack, Nassau, Stephentown, New Lebanon
Name(s):



Main St., Erie Rd., Central Ave., Southwestern Blvd., Reserve Rd., Transit Rd., Broadway, Telephone Rd., Avon-Caledonia Rd., Western Blvd., Eastern Blvd., Geneva Tpke., Hamilton St., Fulton St., Genesee St., Ledyard Ave., Foreman St., Albany St., Cherry Valley Tpke., State St., Western Tpke., Western Ave., Madison Ave., Albany Ave., Church St., Columbia Tpke.
History:














* Assigned in 1926 starting along what is now NY 5 between Ripley and Silver Creek, then along its current alignment from Silver Creek to Orchard Park. US 20 then followed what is now US 20A out of Orchard Park and east to Geneseo. After following present day NY 39 to Avon, US 20 picked up its current alignment (During most of the 1930s, the alignment from Geneseo to East Avon shifted to present day US 20A east to Lakeville and present day NY 15 north to East Avon). Aside from smaller alignment shifts in Canandaigua, Geneva, Auburn, and Cherry Valley, US 20 followed its current alignment east to the Massachusetts border. The Ripley to Silver Creek alignment shifted to its present location in 1932. The Orchard Park to Avon alignment shifted to its present location in 1938 supplanting most of the original NY 35 designation.
* At the north end of Canandaigua Lake, US 20/NY 5 was moved from Lake Shore Dr. onto a new four lane road in the late 1960's.
* US 20/NY 5 in Canandaigua was relocated from West Ave. and S. Main St. to a newly built bypass in 1981.
* US 20 is the longest US route in the country and the 3rd longest signed route in New York State.

1935 Sunoco Rand McNally New York state map
showing a portion of US 20's alignment along what
is now US 20A between Orchard Park and Avon.


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The US 20 Junction List is split into three sections:
PA Border to Avon | Avon to Madison | Madison to MA Border

Mile Desc. EAST (Read Down) WEST (Read Up) CONTINUE
114.12 .
.
(Mark Sinsabaugh, 06/16/2018)
116.90 JCT

(Douglas Kerr, 03/08/2009)

(Mark Sinsabaugh, 06/16/2018)
122.88 JCT WEST

(Mark Sinsabaugh, 06/16/2018)

(Mark Sinsabaugh, 06/16/2018)
. MP .
123.38 . .

(Mark Sinsabaugh, 08/04/2013)
.
123.78 JCT (ET)

(Mark Sinsabaugh, 08/04/2013)

(Mark Sinsabaugh, 06/16/2018)
124.86 . .
.
(Mark Sinsabaugh, 09/28/2018)
126.05 JCT

(Mark Sinsabaugh, 08/04/2013)

(Mark Sinsabaugh, 06/16/2018)
126.66 JCT (Exit 10)

(Mark Sinsabaugh, 08/04/2013)

(Mark Sinsabaugh, 09/28/2018)
130.45 . .

(Mark Sinsabaugh, 08/04/2013)
.
131.02 JCT

(Mark Sinsabaugh, 08/04/2013)

(Mark Sinsabaugh, 09/28/2018)
131.71 . .
.
(Mark Sinsabaugh, 09/28/2018)
133.78 .

(Mark Sinsabaugh, 08/04/2013)

(Mark Sinsabaugh, 09/28/2018)
134.83 JCT (ST)

(Mark Sinsabaugh, 08/04/2013)

(Mark Sinsabaugh, 09/28/2018)
. MP .
139.70 JCT NORTH

(Douglas Kerr, 00/00/0000)

(Mark Sinsabaugh, 09/28/2018)
. MP .
139.89 . .

(Mark Sinsabaugh, 08/04/2013)
.
140.48 . .
.
(Mark Sinsabaugh, 09/28/2018)
141.51 JCT (ST)

(Mark Sinsabaugh, 08/04/2013)

(Mark Sinsabaugh, 03/02/2014)
. MP .
142.77 JCT (ET) SOUTH

(Mark Sinsabaugh, 08/04/2013)

(Mark Sinsabaugh, 11/28/2003)
. MP .
. MP .
147.58 JCT SOUTH

(Douglas Kerr, 03/01/2008)

(Mark Sinsabaugh, 07/01/2018)
. MP .
148.24 . .

(Mark Sinsabaugh, 07/01/2018)
.
. MP .
149.21 JCT NORTH (ST)

(Douglas Kerr, 03/01/2008)

(Mark Sinsabaugh, 07/29/2011)
. MP .
150.30 . .
150.45 JCT (NT)

(Mark Sinsabaugh, 06/23/2007)

(Mark Sinsabaugh, 07/29/2011)
152.51 JCT (NT)

(Mark Sinsabaugh, 06/09/2019)

(Mark Sinsabaugh, 07/14/2018)
161.52 JCT (Formerly (NT))
162.81 JCT (NT) (NT)

(Mark Sinsabaugh, 07/16/2017)

(Mark Sinsabaugh, 08/03/2013)
163.33 . .

(Mark Sinsabaugh, 06/09/2019)
164.43 INT

(Mark Sinsabaugh, 06/09/2019)

(Mark Sinsabaugh, 09/28/2018)
. MP .
. MP .
165.00 JCT

(Mark Sinsabaugh, 06/09/2019)

(Mark Sinsabaugh, 09/28/2018)
. MP .
166.03 .

(Mark Sinsabaugh, 06/09/2019)

(Mark Sinsabaugh, 09/28/2018)
167.06 JCT (NT)

(Mark Sinsabaugh, 06/09/2019)

(Mark Sinsabaugh, 09/28/2018)
171.12 . .

(Mark Sinsabaugh, 06/09/2019)
171.76 JCT

(Mark Sinsabaugh, 06/09/2019)

(Mark Sinsabaugh, 09/28/2018)
172.85 . .
. MP .
173.19 JCT NORTH

(Mark Sinsabaugh, 06/09/2019)
.
. MP .
. MP .
175.41 JCT SOUTH

(Mark Sinsabaugh, 06/09/2019)

(Douglas Kerr, 00/00/0000)
. MP .
178.46 JCT (ET)

(Mark Sinsabaugh, 06/09/2019)

(Mark Sinsabaugh, 06/08/2019)
178.56 JCT

(Mark Sinsabaugh, 06/09/2019)

(Mark Sinsabaugh, 06/08/2019)
180.36 .

(Mark Sinsabaugh, 06/30/2013)

(Mark Sinsabaugh, 06/07/2014)
180.51 JCT

(Mark Sinsabaugh, 06/09/2019)

(Mark Sinsabaugh, 06/08/2019)
188.61 . .
188.61 JCT (ET)

(Mark Sinsabaugh, 06/09/2019)

(Mark Sinsabaugh, 06/08/2019)
. MP .
189.99 JCT NORTH

(Mark Sinsabaugh, 06/30/2013)

(Mark Sinsabaugh, 06/08/2019)
. MP .
. MP .
190.16 JCT SOUTH

(Mark Sinsabaugh, 06/30/2013)

(Mark Sinsabaugh, 06/08/2019)
. MP .
. MP .
190.45 JCT EAST / (NT)

(Mark Sinsabaugh, 06/30/2013)

(Mark Sinsabaugh, 06/08/2019)
. MP .
. MP .
190.56 JCT SOUTH

(Douglas Kerr, 06/23/2007)

(Mark Sinsabaugh, 06/08/2019)
191.77 . .

(Mark Sinsabaugh, 06/08/2019)
195.85 .

(Mark Sinsabaugh, 06/23/2007)

(Mark Sinsabaugh, 06/08/2019)
196.76 . .
196.95 JCT (NT)

(Mark Sinsabaugh, 06/23/2007)

(Mark Sinsabaugh, 03/21/2015)
197.42 JCT (ST)

(Mark Sinsabaugh, 06/23/2007)

(Mark Sinsabaugh, 12/11/2009)
198.06 JCT (NT)

(Mark Sinsabaugh, 12/11/2009)

(Mark Sinsabaugh, 06/08/2019)
198.20 . .

(Mark Sinsabaugh, 06/08/2019)
199.25 JCT (WT)

(Mark Sinsabaugh, 06/23/2007)

(Mark Sinsabaugh, 06/08/2019)
202.43 JCT SOUTH

(Mark Sinsabaugh, 06/23/2007)

(Mark Sinsabaugh, 06/08/2019)
. MP .
. MP .
202.74 JCT NORTH

(Mark Sinsabaugh, 05/17/2014)

(Mark Sinsabaugh, 06/08/2019)
208.58 JCT

(Mark Sinsabaugh, 06/23/2007)

(Mark Sinsabaugh, 06/08/2019)
212.78 JCT

(Mark Sinsabaugh, 06/23/2007)

(Mark Sinsabaugh, 06/08/2019)
214.44 JCT SOUTH (Exit 15)

(Mark Sinsabaugh, 06/23/2007)

(Mark Sinsabaugh, 06/08/2019)
214.76 JCT / TO NORTH (Exit 15)

(Mark Sinsabaugh, 06/23/2007)

(Mark Sinsabaugh, 06/08/2019)
220.65 JCT

(Douglas Kerr, 12/07/2008)

(Mark Sinsabaugh, 06/08/2019)
227.35 .

(Mark Sinsabaugh, 06/23/2007)

(Mark Sinsabaugh, 06/08/2019)
229.21 JCT (ET)

(Douglas Kerr, 12/07/2008)

(Mark Sinsabaugh, 10/10/2020)
229.47 . .
229.88 JCT SOUTH

(Mark Sinsabaugh, 08/29/2015)

(Mark Sinsabaugh, 04/13/2008)
. MP .
. MP .
230.47 JCT NORTH

(Douglas Kerr, 00/00/0000)

(Mark Sinsabaugh, 06/08/2019)
230.95 . .
.
(Mark Sinsabaugh, 06/08/2019)
240.84 . .

(Mark Sinsabaugh, 08/29/2015)
.
241.92 . .
.
(Mark Sinsabaugh, 06/08/2019)
245.03 JCT NORTH

(Mark Sinsabaugh, 08/29/2015)

(Mark Sinsabaugh, 06/08/2019)
. MP .
. MP .
245.24 JCT SOUTH

(Mark Sinsabaugh, 08/29/2015)

(Mark Sinsabaugh, 06/08/2019)
245.80 JCT SOUTH

(Mark Sinsabaugh, 08/29/2015)

(Mark Sinsabaugh, 06/08/2019)
. MP .
. MP .
247.45 JCT SOUTH

(Mark Sinsabaugh, 08/29/2015)

(Mark Sinsabaugh, 06/08/2019)
. MP .
248.38 . .

(Mark Sinsabaugh, 04/19/2009)
.
249.10 . .
.
(Mark Sinsabaugh, 06/08/2019)
. MP .
250.45 JCT NORTH NORTH

(Mark Sinsabaugh, 04/19/2009)

(Mark Sinsabaugh, 06/08/2019)
252.51 .
.
(Mark Sinsabaugh, 06/08/2019)
Mile Desc. EAST (Read Down) CONTINUE WEST (Read Up)


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Signage for US 20 and NY 5 along its former routing in downtown Canandaigua. The duplex was rerouted onto a bypass that was built and opened to traffic in 1981. Somehow, this sign assembly was overlooked for over 20 years, and even survived a sign rehab project in late summer 1993. However, it was finally removed in 2005.
(Mark Sinsabaugh, 09/11/2002)
Erroneous NY 20 shield on a reassurance assembly for its multiplex with NY 5 and NY 64 in East Bloomfield. (Mark Sinsabaugh, 11/28/2003)
Erroneous NY 20 shield on a reassurance assembly for its multiplex with NY 12B and NY 26 in Madison.
(Mark Sinsabaugh, 10/19/2008)

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Alps Roads (Steve Alpert)
Historic US 20 (Bryan Farr)
New York State Roads (Valerie Deane)
Route 20 Association of New York State
US Ends: US 20 Ends (Dale Sanderson)
Wikipedia: US 20



Page Created: July 2, 2007 | Page Updated: October 12, 2020