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Wikipedia:WikiProject U.S. Roads/Interstate Highways/History

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So far this information is mainly from the post-1989 AASHTO decisions. Note that there are typos; descriptions should be checked against lengths.

Please also see Wikipedia:WikiProject U.S. Roads/Resources/AASHTO minutes.

June 6, 1989
October 6, 1989
June 2, 1990
  • I-H-1A (I-H-1 to I-H-1) withheld for further review by Hawaii and FHWA
December 7, 1990
June 9, 1991
October 11, 1991
  • nothing
June 13, 1992
  • Interstate 526 Spur approved, end of I-526 in Mount Pleasant over former US 17 Business (elimination approved) to SR 703
  • I-140 (TN) approved subject to FHWA approval, I-40 and SR 162 to US 129
  • I-664 (VA) approved, I-64 in Hampton to I-64 in Portsmouth
October 2, 1992
April 17, 1993
  • I-215 (NV) extension approved, SR 593 (Tropicana Avenue) south and east to US 95
October 22, 1993
April 9, 1994
November 11, 1994
April 22, 1995
October 27, 1995
April 19, 1996
  • I-540 (NC) approved subject to FHWA and future parts referred to as FUTURE I-540; I-540 from SR 55 in Triangle Park northeast, southeast and south to future US 64 (Knightdale Bypass) west of Knightdale, North Carolina; first part to be completed will be from I-40 near Triangle Park northeast to US 70 east of airport
  • No action on North Carolina's applications for I-73 and I-74, as both also involved VA and SC; denied Interstate 74 Temporary, suggesting TO I-74 instead
    • I-74 from I-77 at Virginia state line south over I-77 to US 52 south of Mount Airy, southeast on US 52 to US 311 in Winston-Salem, east and southeast on US 311 to US 220 in Randleman, south on US 220 to US 74 in Rockingham, southeast on US 74 to US 76 in Whitehall, west on US 76 to South Carolina
    • I-74 Temporary from US 52 and SR 1840 in Winston-Salem south on US 52 to I-40
    • I-73 from US 220 at Virginia state line, south on US 220 to SR 68 northwest of Greensboro, south on SR 68 to I-40 in Kernersville, southeast on I-40 to US 220 in Greensboro, south on US 220 to US 1 in Rockingham, southwest on US 1 to South Carolina
  • I-85 relocated in Atlanta, Georgia (old became SR 13)
October 4, 1996
  • I-73 and I-74 VA/NC/SC approved July 25, 1996 by mail ballot
    • I-74 from I-77/I-81 east of Wytheville, Virginia, south on I-77 to US 52 south of Mount Airy, North Carolina, then as above to Rockingham, southeast on US 74 to planned road west of Whiteville, south over new road to US 17 southwest of Wilmington, southwest on US 17 to I-73 in or near Myrtle Beach
    • I-73 from I-81/I-581 southeast on I-581 and south on US 220, then as above to Rockingham, southwest on US 1 to SR 9 near Cheraw, south on SR 9/SR 38 to US 501 near Marion, south on US 501 to US 701 in Conway, southwest on US 701 to US 17 in Georgetown, south on US 17 to end of I-26 in Charleston
  • I-485 (NC) extended from north of Charlotte southwest and southeast to I-77 south of Charlotte
April 25, 1997
  • I-49 denied in Arkansas (I-40 and SR 540 near Alma, north over SR 540 to new road at Mountainsburg, then north on new road to US 71 at Fayetteville, then north on US 71 to US 71 Business), as FHWA does not concur – no indications that other states support the proposed I-49
November 14, 1997
  • Future I-540 (AR) approved conditionally, from I-540 and I-40 east on I-40 then north as above (denied I-49) – mark as FUTURE I-540
  • Future I-530 (AR) approved conditionally, from I-30 and US 65 in Little Rock south on US 65 to new road south of Pine Bluff, then southeast on new road to US 65 – mark as FUTURE I-530
  • Interstate 35 Business (Lamoni, Iowa) denied, from I-35 at US 69 south of Lamoni, north and east on US 69 to I-35 east of Lamoni – "serious deficiencies" in route
  • I-264 (VA) extended subject to FHWA, from I-264 and SR 44 west [sic] over SR 44 to Parks Avenue in Virginia Beach
  • I-785 (NC) approved subject to FHWA, from US 58 and US 29 in Danville southwest and south on US 29 to I-85 in Greensboro
April 15, 1998
November 6, 1998
  • I-210 (CA) elimination and extension deferred because it was unclear if California had submitted a request to the FHWA; elimination from I-10 in Pomona to SR 30 in Dimas, extension on SR 30 east and south to I-10 in Redlands
  • I-49 extended in Louisiana from I-49/US 167 in Lafayette southeast on US 167, then southeast and northeast on US 90 to I-310; to be referred to as Future I-49
  • I-99 approved, I-76/US 220 in Bedford north to SR 350 south of Bald Eagle
  • I-86 (east) approved, from I-87/SR 17 in Harriman, northwest and west to I-90 northeast of Erie, to be Future I-86
April 16, 1999
  • I-555 (AR) denied because a section did not meet standards and would not for some time, from I-55 and US 63 north of Marion, northwest on US 63 to SR 91 in Jonesboro
  • I-140 (NC) denied because it had not been designated by the FHWA and deficiencies existed, from I-40 and US 1 in Raleigh west on US 1 to US 421 (future Sanford Bypass) in Sanford
  • Interstate 35 Business (Clear Lake, Iowa) approved, from I-35/US 18 northeast of Clear Lake southwest on US 18, south on 8th Street, east on 4th Avenue to I-35
October 1, 1999
  • I-49 extension in Louisiana approved, to be called FUTURE I-49, from Future I-49 at I-310 east on US 90 to I-10 in New Orleans [sic – US 90 Business], requested that Louisiana apply for I-910 from I-10 in New Orleans to Ames Boulevard in Marrero
April 7, 2000
  • I-540 (AR) extension approved as Future until FHWA adds it – from I-540/US 71 near Fayetteville north on US 71 to US 62 in Rogers
  • I-270 (CO) extension approved as Future until FHWA adds it – from I-270/I-76 northwest to I-25
  • Interstate 80 Business (Lovelock, Nevada) approved, I-80/SR 396 at Lovelock northeast on SR 396 to I-80
  • I-265 (TN) eliminated (I-65 to I-40), I-65 relocated from I-265 southwest on I-265 and southeast on I-40 to I-65
December 8, 2000
  • I-555 (AR) approved as Future until FHWA adds it – from I-55/US 63 northwest on US 63 to US 49S in Jonesboro
  • I-130 (AR) (I-30 and new road south and southwest to State Line Avenue in Texarkana) approved from I-30 to US 71, but US 71 to State Line Avenue denied, as Texas has not submitted a request; to be Future I-130 until approved by FHWA
  • I-185 (SC) extension approved as Future until FHWA adds it – from present end southwest of Greenville east on new road to I-385
  • PRI-3 extended from present terminus in Ceiba, Puerto Rico southwest and south on new road to PR-30 in Humacao, Puerto Rico
May 18, 2001
  • nothing
November 5, 2002
  • Maine changes approved
    • I-95 moved to old I-495, I-495 died
    • I-295 (ME) extended north on old I-95 to old I-495
    • I-495 (ME) designated on old I-95 (Falmouth Spur) from I-95 to I-295 (was not in Maine's proposal)
  • I-865 (IN) formed from leg of I-465
May 30, 2003
  • I-140 (NC) approved as Future until FHWA adds it – US 17 and new road east of Wilmington, west and southwest to US 17 west of Wilmington
  • I-185 (NC) denied since it has not been designated part of the Interstate System by the FHWA – I-85/I-85 Business in Lexington northwest on I-85 Business to US 52, northwest and north on US 52 to I-40 in Winston-Salem
  • I-195 (NC) denied since it has not been designated part of the Interstate System by the FHWA – I-95 and new road north of Fayetteville, northwest, southwest, south and southeast to I-95 south of Fayetteville
  • I-181 (TN) elimination removed from agenda, as it cannot happen until I-26 is complete to Interstate standards
  • I-181 (TN) renumbering as I-26 from I-81 north to US 11 in Kingsport denied as the FHWA does not concur, and there is no evidence of a planned extension
  • Interstate 40 Business (Kingman, Arizona) removed
  • Interstate 44 Business (Pacific, Missouri) extended, from I-44 Business and South Outer Road west on South Outer Road to I-44 in Gray Summit
  • I-44 moved in Oklahoma, from I-44/US 412 east of Tulsa east on US 412 to Will Rogers Turnpike and north to I-44 southwest of Claremore
October 7, 2003
  • nothing
May 14, 2004
  • I-85 relocation in North Carolina approved if FHWA concurs (could not be done until they got a state request) – Greensboro Bypass from I-85 south of Greensboro, east and northeast to I-85 east of Greensboro
  • I-670 (OH) approved if FHWA concurs (done May 24, 2004) – rebuilt road from I-70 to I-270
    • I-670 approved west of I-71 2-7-1975 and east of I-71 12-19-1975
  • Interstate 85 Business (Greensboro, North Carolina) approved if FHWA concurs (could not be done until they got a state request) – old I-85 at Greensboro Bypass
May 6, 2005

(not decided yet???)

  • I-295 (NC) from I-95 northeast of Fayetteville, crossing US 401 and US 301 to I-95 south of Fayetteville
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