Decommissioned Interstates

This set of Interstates includes those that were either signed at one point and legislatively decommissioned, renumbered as another Interstate, or planned and subsequently canceled. As planning documents arise either through library research, the internet, or other sources, expansion of the list below will occur with this information and photos as they are taken.

The following code indicates whether the Interstate was Dismantled (D); Partially Completed (P); Renumbered as another Interstate or freeway designation, U.S., or state route (R); Unconstructed (U); or Numbering Proposed but Not Approved by AASHTO (N).

Interstate		South/West Terminus	North/East Terminus	Code	Current Designation
5W	CA	Vernalis	Dunnigan	R	I-580, I-80, I-505
305	OR	Salem	Keizer	R	I-305*
505	OR	Portland	Portland	P
210	AL	Mobile	Prichard	P
410	LA	west of Port Allen	Walker	R, P	I-110
410	LA	Kenner	New Orleans East	R, P	I-310, I-510
15E	CA	Murrieta	Devore	R	I-215
15W	ID	Heyburn	Pocatello	R	I-86
415	UT	Murray	East Millcreek	R	I-215
420	GA	Atlanta	Gresham Park	U
420	LA	Monroe Bypass		U
326	SC	Interstate 26 near Columbia	South Carolina 48	R	I-77
35W	KS	Wichita	Salina	R	I-135
335	MN	Minneapolis - Urban Loop		U
340	NC	Sanford	Raleigh	N	U.S. 1
440	OK	Oklahoma City	Oklahoma City	R	I-44
244	MO	Mehlville	Bridgeton	R	I-270
255	TN	Memphis	Downtown Memphis	R	I-240
455	IL	Bolingbrook	Itasca	R	I-355
755	MO	north of downtown Saint Louis	south of downtown Saint Louis	U
265	TN	Nashville	Nashville	R	I-65
70N	MD	Frederick	Baltimore	R	I-70
70S	MD	Frederick	Bethesda	R	I-270
70S	PA	Washington	New Stanton	R	I-70
170	MD	west of downtown Baltimore	Downtown Baltimore	R, P	U.S. 40
470	CO	Golden	Centennial	R	C-470
172	IL	Quincy	Springfield	R	I-72
174	IL, IA	Moline, IL	Bettendorf, IA	N
274	IL, IA	I-74/80 near Coloma, IL	NW of Davenport, IA	R	I-280
75E	FL	Ellenton	Lutz	R	I-75
175	GA	Albany	Cordele	R	GA 300*
475	TN	Interstate 40/75	Interstate 75	U	--
378	PA	downtown Bethlehem	northern Bethlehem	R	PA 378
80N	OR, ID, UT	Portland	Echo Junction	R	I-84
80N	IA	Loveland	Minden	R	I-680
80N	OH	Norwalk	Youngstown	P
80S	CO, NE	Denver, CO	Big Springs, NE	R	I-76
80S	OH, PA, NJ	Norwalk, OH	Camden, NJ	R	I-76
180N	ID	Boise	Downtown Boise	R	I-184
180	CA	San Rafael	Richmond	R	I-580
280	NE, IA	Omaha	Council Bluffs	R	I-680
480	CA	western San Francisco	eastern San Francisco	D
580	NE	Omaha	northern Omaha	R	U.S. 75
880	CA	West Sacramento	Sacramento	R	I-80
81E	PA	Pocono Summit	Scranton	R	I-380
181	TN	Colonial Heights	Kingsport	R	I-26
281	NY	Syracuse Bypass		R	I-481
184	RI	Providence	Cranston	R
284	CT	East Hartford	South Windsor	P
484	CT	Downtown Hartford	Downtown Hartford	P
185	NC	Lexington	Winston-Salem	N	I-285
485	GA	Downtown Atlanta	Clarkston	P
86	CT, MA	Wethersfield	Sturbridge	R	I-84
687	NY	I-87 north of Albany	I-90 Albany	U
90N	NY	Buffalo	Niagara Falls	P
290	OH	Cleveland		R, U	I-490
193	NH	Bedford	Manchester	R	I-293
494	IL	Chicago - Lake Shore Drive, Crosstown Expressway		R, U	U.S. 41*
195	NC	Fayetteville Loop		N	I-295
495	NJ/NY	Secaucus, NJ	Manhattan, NY	R	NJ 495
595	VA	Washington National Airport	Arlington, VA	P	U.S. 1*, VA-233
695	MA	Boston Inner Belt		U
695	NJ	connection from unbuilt I-95 to I-287 north		U
695	PA	I-95 south Philadelphia	I-76 Philadelphia	U
895	NJ, PA	Springside, NJ	West Bristol, PA	U
895	MA	vicinity of Swansea	Attleboro, MA	U
895	RI	Warwick	Swansea	U

* = Route built to expressway/parkway/boulevard standards rather than Interstate standards (controlled access).

Page Updated December 6, 2012.