|
| State |
Route |
Miles |
Completed/Future Interstate Route or Route Concept Replacement |
| AL |
Mobile Connector, I-65 to I-10 |
6.2 |
Completed as I-165, connection to I-10 was cancelled |
| AL |
Birmingham toward Memphis |
91.3 |
Completed as I-22 |
| AZ |
Phoenix "loop" freeway system |
63.3 |
Completed as Loop 303, Loop 101, Loop 202 South Mountain Freeway |
| AZ |
Three urban freeways in Tucson |
31.0 |
Never built, bypass concept replaced by Future I-11 |
| AR |
Little Rock to Dumas |
77.3 |
Replaced by "I-69 Spur" concept combining the existing I-530 to Pine Bluff and AR 530 to Future I-69 near Monticello |
| AR |
US 67 Little Rock to Newport |
79.0 |
Completed as US 67 freeway from I-40 Little Rock to Walnut Ridge, redesignated as Future I-57 to US 60 in Poplar Bluff, Missouri then to I-57/I-55 in Sikeston Missouri |
| AR |
Gilmore to Walnut Ridge |
64.5 |
Completed as I-555 |
| AR |
Van Buren to Rogers |
60.5 |
Completed as I-540, redesignated as I-49 |
| AR |
Texarkana toward Shreveport |
33.5 |
Completed as I-49 |
| CA |
Fremont to Hayward |
15.2 |
Cancelled CA 238 freeway. Unused ramps at I-680 removed 2002. |
| CA |
San Bernardino bypass, I-10 to I-15 |
14.2 |
Never built |
| CA |
"Future I-210 East Extension" from existing I-210 to I-15 (formerly CA 31) |
19.2 |
Completed as non-interstate standard freeway CA 210 |
| CA |
US 50 Sacramento to Reno |
99.9 |
Never built, potential "Future I-70" Trans America Corridor |
| CA |
SF Bay crossing and connectors |
24.9 |
Newly proposed "Southern San Franciso Bay Bridge Crossing" |
| CA |
"Future I-40" West Extension using CA 58 Buttonwillow to Barstow via Bakersfield |
145.0 |
Never built |
| C0 |
Northwest quadrant of Denver C-470 Outer Belt |
24.8 |
Concept was cancelled because of local opposition |
| DE |
US 13 Wilmington to Norfolk Virginia |
79.0 |
Never built |
| FL |
Miami to Homestead |
32.0 |
Completed as local toll-road |
| FL |
West of Miami to Homestead AFB |
20.0 |
Completed as local toll-road |
| GA |
Macon connector, I-475 to I-16 |
8.0 |
Never built |
| GA |
Augusta circumferential |
15.0 |
Completed as I-520 |
| GA |
Savannah spur |
3.4 |
Completed as I-516 |
| HI |
Honolulu south loop |
6.5 |
Completed as H-1 |
| ID |
Boise, east connector |
0.6 |
Never built |
| ID |
I-15 near McCammon to Wyo. state line en route to I-80 |
87.0 |
Never built |
| IL |
DuPage Cty, I-55 to I-90 |
19.0 |
Completed as I-355 |
| IL |
Hennepin to Peoria |
44.0 |
Never built |
| IN |
Indy, Northeast Expressway |
8.7 |
Never built |
| IN |
US 41 I-70 in Terre Haute to I-64 |
92.1 |
Never built, concept replaced by I-69 Evansville to Indianapolis |
| IN |
Evansville to Ky. state line |
6.8 |
Never built, concept replaced by I-69 |
| IN |
I-94 to I-65 connector |
10.1 |
Completed as I-294 |
| IA |
US 218 Cedar Falls to Mason City |
84.1 |
Completed as non-interstate expressway "Avenue of the Saints" |
| IA |
US 20 Dubuque to Cedar Falls |
134.2 |
Completed as non-interstate freeway and four-lane expressway |
| IA |
US 218 Iowa City to Keokuk |
88.2 |
Completed as non-interstate expressway "Avenue of the Saints" |
| IA |
Des Moines, southeast belt |
24.5 |
Completed as non-interstate freeway IA-5 |
| IA |
US 151 Cedar Rapids, southwest to I-80 |
33.3 |
Never built |
| IA |
US 34 Des Moines to Burlington |
151.6 |
Completed as four-lane expressway with non-interstate freeway bypasess |
| IA |
US 20 Sioux City to I-35 |
143.9 |
Completed as non-interstate freeway and four-lane expressway |
| IA |
US 61 Davenport to Dubuque |
66.3 |
Never built |
| IA |
Independence diagonal route |
23.5 |
Never built |
| KS |
US 69 Kansas City Kansas to Okla. state lines |
138.7 |
Concept replaced by I-49 following US 71 in Missouri, northern part completed as non-interstate freeway to Fort Scott, |
| KS |
US 54 Wichita to Okla. state line en route to Tucumcari, NM |
216.7 |
"Future I-66" Trans America Highway cancelled in 2015 |
| KS |
US 400 Wichita to Pittsburg |
144.6 |
"Future I-66" Trans America Highway cancelled in 2015 |
| KS |
US 169 Olathe to Okla. state line en route to Tulsa |
157.4 |
Never built |
| KS |
US 36 Belleville to Mo. state line en route to St. Joseph |
152.0 |
Never built |
| KS |
US 75 from I-35 in Olivet to Topeka |
41.5 |
Never built |
| KS |
US 59 Ottawa to I-70 in Lawrence |
26.4 |
Never built |
| KS |
Wichita northeast belt |
10.0 |
Completed as non-interstate KS 96 freeway |
| KY |
Jefferson Fwy, Louisville |
34.7 |
Never built |
| KY |
Crosstown Fwy, Lexington |
9.8 |
Never built |
| KY |
Ind. state line to Henderson |
5.4 |
Concept replaced by Future I-69 |
| LA |
New Orleans to Shreveport |
341.6 |
Completed as I-49 Shreveport to Lafayette between 1980-1996, now Future I-49 Corridor from Kansas City MO to New Orleans LA |
| ME |
Topsham to Brunswick |
3.8 |
Never built |
| ME |
"Future I-98" Bangor to Calais |
119.1 |
Never built |
| ME |
Augusta belt |
5.9 |
Never built |
| ME |
Houlton to Van Buren |
77.5 |
Never built |
| ME |
Pittsfield (I-95) to NH state line near Gilead |
94.8 |
Never built |
| MD |
MD 295 Baltimore to Washington Parkway |
27.0 |
Never built |
| MD |
Baltimore to Annapolis |
20.5 |
Completed as I-97 |
| MD |
I-70 in Hancock to Cumberland |
31.1 |
Completed as I-68 |
| MD |
US 13, Norfolk - Wilmington route |
32.0 |
Never built |
| MD |
Annapolis to Dover Delaware |
45.0 |
Never built |
| MA |
Haverhill, downtown connector |
2.0 |
Never built |
| MA |
Beverly - Salem - Vinnin Square |
8.1 |
Never built |
| MA |
Lawrence connector |
3.0 |
Never built |
| MA |
US 7 Pittsfield to I-90 |
11.0 |
Never built |
| MA |
Worcester - Fitchburg |
32.6 |
Completed as I-190 |
| MI |
Detroit inner loop |
9.0 |
Never built |
| MI |
I-275 extension to
I-75 |
21.0 |
Never Built |
| MI |
Flint to Port Huron |
60.0 |
Completed as I-69 |
| MI |
US 131 from I-96 Grand Rapids to I-75 Mackinaw City |
210.0 |
Completed as non-interstate freeway to Manton,
potential "Future I-67", "Future I-63", or "Future I-73" |
| MI |
US 23 Standish to Cheboygan |
184.0 |
Never built |
| MN |
I-35 Extension to Duluth |
5.4 |
Completed as I-35 |
| MS |
US 78, Birmingham to Memphis route |
120.3 |
Completed as I-22 |
| MO |
"Future I-755" St. Louis inner belt |
4.5 |
Never built |
| MO |
US 63 Columbia via Jefferson City to Rolla |
86.3 |
Never built |
| NE |
"Future I-135" I-80 near York Kansas border to Salina |
57.2 |
Never built |
| NE |
US 281 I-80 to Grand Island |
6.9 |
Never built |
| NE |
US 281 I-80 to Hastings |
16.9 |
Never built |
| NE |
US 77 Lincoln to S. Sioux City |
120.8 |
Never built |
| NE |
Omaha to North Bend |
42.6 |
Never built |
| NV |
Reno to Carson City |
32.3 |
Completed as I-580 |
| NV |
Las Vegas Spur |
10.5 |
Completed as I-515 now part of Future I-11 Corridor |
| NV |
US 50 California border to Utah border, via Carson City |
403.7 |
Never built, potential "I-70" Transamerica Corridor |
| NH |
"Future I-92" Albany to Portsmouth |
103.0 |
Never built |
| NH |
"Future I-98" Glens Falls to Calais |
44.0 |
Never built |
| NH |
Future I-190
north extension Manchester to Worcester Mass. |
31.0 |
Never built |
| NJ |
NJ 75 Newark, I-78 to I-280 |
3.0 |
Never built |
| NJ |
US 1 Elizabeth to Newark |
6.0 |
Never built |
| NJ |
NJ 85 Jersey City, I-78 to I-495 |
3.0 |
Never built |
| NJ |
NJ 3/US 46 New Durham to Wayne |
35.1 |
Never built |
| NJ |
NJ 90 Delair (Pa. state line) to I-295 |
7.5 |
Never built |
| NJ |
US 322 Bridgeport (Pa. state line) to I-295 |
4.0 |
Never built |
| NJ |
Morristown to Springfield |
15.0 |
Never built |
| NJ |
Franklin Lakes to NY state line near Alpine |
16.7 |
Never built |
| NJ |
Hope to NY state line near Port Jervis |
34.0 |
Never built |
| NM |
US 70 Las Cruces to Texico |
301.0 |
Never built |
| NY |
Sheridan Expwy |
4.0 |
Completed as I-895
|
| NY |
NYC, Co-op City I-678 Bypass |
2.9 |
Never built |
| NY |
Binghamton to Rochester |
162.0 |
Completed as I-390 |
| NY |
US 219 Buffalo to Pa. state line near Bradford |
64.4 |
Never built |
| NY |
Binghamton - Erie |
150.5 |
Completed as I-86 |
| NY |
Watertown - Burlington |
150.0 |
Never built |
| NY |
Future I-92 Schenectady to Vermont state line then Portsmouth, NH |
26.1 |
Never built |
| NY |
Syracuse north belt |
12.0 |
Never built |
| NY |
Future I-98 Glens Falls to Vermont state line en route to Bangor |
33.0 |
Never built |
| NY |
NY 13 Elmira - Courtland |
49.0 |
Never built |
| NY |
Rochester Outer Belt |
42.5 |
Never built |
| NY |
Oyster Bay - Long Island expwys |
36.0 |
Planning for Future I-287
Long Island Sound Crossing was cancelled in 2018 |
| NY |
NY 17 Binghamton to New York City |
132.0 |
Never built |
| NY |
West Dutchess Expwy |
69.0 |
Never built |
| NY |
US 209 Catskill Expressway |
60.5 |
Never built |
| NY |
NY 18 "Future I-990" Niagara Falls - Rochester |
66.3 |
Never built |
| NY |
Lockport Expwy |
12.0 |
Completed as I-990 |
| NY |
Buffalo - Dansville |
61.0 |
Never built |
| NY |
Yonkers - NJ expwy |
2.0 |
Never built |
| NY |
Delaware - St Lawrence expwy |
212.0 |
Never built |
| NY |
Amsterdam - Northway expwy |
20.0 |
Never built |
| NC |
Asheville, north belt |
8.8 |
Never built |
| NC |
Charlotte, outer belt |
71.5 |
Completed as I-485 |
| NC |
Winston - Salem to Greensboro |
42.8 |
Never built |
| NC |
Greensboro spur |
7.6 |
Never built |
| NC |
High Point to I-40 west of Greensboro |
13.0 |
Never built |
| NC |
Durham, east connector to I-85 |
5.8 |
Never built |
| NC |
Raleigh spur |
2.0 |
Never built |
| NC |
Fayetteville, north and south bypasses |
25.0 |
Never built |
| NC |
US 421 Greensboro to Wilmington |
159.0 |
Concept replaced by existing I-40 extension |
| NC |
Morehead City spur |
83.0 |
Future I-42 |
| NC |
US 74 Asheville - Charlotte - Wilmington |
245.4 |
Completed as freeway, toll-road, four-lane highway, and I-74 |
| OH |
Cleveland connector, I-71 to I-90 |
6.3 |
Never built |
| OH |
I-675 Dayton West Bypass |
19.8 |
West bypass cancelled, I-675 Eastern Bypass completed 1986 |
| OH |
Akron - Canton connectors |
67.2 |
Never built |
| OH |
Toledo Connector, I-75 to I-280 |
3.6 |
Never built |
| OK |
Okla City, spur to Will Rogers Airport |
2.2 |
Never built |
| OK |
Tulsa to Tonkawa (at I-35) |
108.4 |
Never built |
| OK |
Tulsa to Webbers Falls (at I-40) |
63.7 |
Never built |
| OR |
Portland to Astoria (near Pac. coast) |
100.9 |
Cancelled Future I-505 |
| OR |
Salem |
2.3 |
Completed as I-305 |
| OR |
Eugene, |
4.2 |
Completed as I-105 |
| PA |
US 219 Ebensburg to NY state line en route to Buffalo |
115.0 |
Never built |
| PA |
Harrisburg, West Shore Expwy |
6.0 |
Never built |
| PA |
Allentown spur |
7.0 |
Completed as I-178 |
| PA |
Bethelehum spur |
4.0 |
Completed as I-378 |
| PA |
PA 309 Wilkes-Barre spur |
2.5 |
Never built |
| SC |
Columbia, connector to I-26 |
1.5 |
Never built |
| SD |
US 83, I-90 to Pierre |
34.5 |
Never built |
| TN |
Memphis, Riverfront - NW Expwy |
8.9 |
Never built |
| TN |
Chattanooga, Central Fwy |
8.6 |
Never built |
| TN |
Dyersburg to Clarksville, I-155 to I-24 |
125.0 |
Never built, potential "Future I-48" Corridor following US 412 to Oklahoma |
| TN |
Dyersburg to Jackson, I-155 to I-40 |
40.0 |
Never built, route concept replaced by Future I-69 |
| TN |
Memphis toward Birmingham, AL |
9.0 |
Completed as I-22 |
| TX |
Lubbock to Roscoe |
111.0 |
Proposed Future I-27 Plains to Ports Corridor |
| UT |
Salt Lake City, loop and radial |
12.5 |
Never built |
| UT |
Lagoon (I-15) to Uintah Jct (I-84) |
10.9 |
Never built |
| UT |
US 6 Green River to Spanish Fork |
126.4 |
Never built |
| VT |
"Future I-92" Albany to Portsmouth |
45.2 |
Never built |
| VT |
"Future I-98" Glens Falls to Calais |
97.3 |
Never built |
| VA |
Richmond, extend I-195 to I-95 |
3.3 |
Never built |
| VA |
Portsmouth - Norfolk connector |
8.0 |
Never built |
| VA |
Richmond, west belt |
30.0 |
Completed as VA 288 |
| VA |
Norfolk, extend I-464 to I-264 |
0.6 |
I-464 Downtown Tunnel/Berkley Bridge; I-264 completed 1978 |
| WA |
Tacoma, north loop |
10.6 |
Never built |
| WV |
"Future I-66" west extension from I-79 Weston to I-81 Stasburg, Va. |
128.1 |
Completed and under construction as US 48 Corridor H expressway |
| WI |
Beloit to Milwaukee |
59.8 |
Completed as I-43 |
| WI |
Milwaukee Belt |
40.7 |
Never built |
| WI |
US 53 Eau Claire to Superior |
151.7 |
Completed as non-interstate freeway and expressway |
