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List of All High Priority Corridors
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High Priority Corridors: Excerpts from the ISTEA, NHS, TEA-21, and SAFETEA-LU Legislation
Changes to HPC System due to SAFETEA-LU
High Priority Corridors: Sources

Intermodal Surface Transportation and Efficiency Act (ISTEA) of 1991

National Highway System Designation Act (NHS) of 1995

Transportation Equity Act for the 21st Century (TEA-21) of 1998

Safe, Accountable, Flexible, Efficient Transportation Equity

Act of 2005 A Legacy for Users (SAFETEA-LU)

Here's the list of 45 of the 80 High Priority Corridors. The chart lists the corridor's name, the overall routing of the corridor (including proposed Interstate or U.S. highways), the states included in the corridor, and the two termini of the corridor.

New corridors have been added as part of the Safe, Accountable, Flexible, Efficient Transportation Equity Act of 2005 A Legacy for Users (SAFETEA-LU).

Corridor 1: North-South Corridor Interstate 49, Interstate 130, Interstate 540; U.S. 71 LA, AR, MO From Shreveport to Kansas City via U.S. 71 corridor
Corridor 2: Avenue of the Saints U.S. 61, U.S. 218, Iowa 27, Interstate 380, U.S. 18 MO, IA From St. Louis to Mason City
Corridor 3: Transamerica Corridor Interstate 66, U.S. 460, Kentucky 80, U.S. 400, U.S. 54, Interstate 40 CA, NV, AZ, UT, CO, NM, KS, MO, KY, WV, VA, DC From Fresno to Washington
Corridor 4: Hoosier Heartland Industrial Corridor Ind. 25, U.S. 24 IN, OH From Lafayette to Toledo via Fort Wayne
Corridor 5: Great Lakes / Mid-Atlantic Corridor Interstate 73 and Interstate 74 (U.S. 27, 127, 223, 23, 52, 220, 501) SC, NC, VA, WV, OH From Charleston to Detroit and the Quad Cities
Corridor 6: U.S. 80 Proposed Interstate 14, Proposed Interstate 85, U.S. 80 MS, AL, GA From Meridian to Macon
Corridor 7: U.S. 72 U.S. 72, Interstate 565 TN, MS, AL, GA From Memphis to Chattanooga via Huntsville, with a branch to Atlanta via Rome
Corridor 8: U.S. 412 U.S. 412 OK, AR, MO, TN From Tulsa to Jackson and Nashville
Corridor 9: Interstate 99 Interstate 99, U.S. 220, U.S. 322, Penna. 26 PA, NY From Bedford to Corning via State College
Corridor 10: Appalachian Corridor X Proposed Interstate 22, U.S. 78 TN, MS, AL From Memphis to Birmingham
Corridor 11: Appalachian Corridor V Miss. 6, U.S. 78, Ala. 24, Interstate 565, U.S. 72 MS, AL, TN Batesville to Chattanooga via Huntsville
Corridor 12: Cumberland Gap U.S. 25E, U.S. 58 KY, TN From Corbin to Morristown via Cumberland Gap
Corridor 13: Raleigh to Norfolk U.S. 64, U.S. 13, U.S. 17 NC, VA From Raleigh to Norfolk
Corridor 14: Heartland Expressway Interstate 76, Colorado 71, Nebraska 71, U.S. 26, U.S. 385, South Dakota 79 CO, NE, SD From Kimball to Rapid City via Scottsbluff
Corridor 15: Detroit Urban Highway Michigan 59 MI From Howell to Sterling Heights
Corridor 16: Economic Lifeline Interstate 15 and Interstate 40 CA, NV, AZ From San Diego to Las Vegas and Barstow to Flagstaff
Corridor 17: U.S. 29 Interstate 785, U.S. 29 NC, VA, DC From Greensboro to Washington
Corridor 18: NAFTA Superhighway Interstate 69, Interstate 94, and Interstate 530 (U.S. 59, U.S. 77, U.S. 281, U.S. 82, U.S. 61, U.S. 51, Purchase Parkway, Interstate 164, Indiana 37) TX, AR, LA, TN, KY, IN, MI From Memphis to Indianapolis; Interstates 69 and 94 in Indiana and Michigan
Corridor 19: U.S. 395 U.S. 395 CA, NV, OR, WA From Reno to Laurie
Corridor 20: U.S. 59 Interstate 69 TX, LA, AR From Laredo to Texarkana
Corridor 21: U.S. 219 U.S. 219 NY From Salamanca to Buffalo
Corridor 22: Alameda Transportation Calif. 47, Calif. 103; Alameda Avenue CA From Long Beach to Los Angeles
Corridor 23: Interstate 35 Interstate 35 and Interstate 135, U.S. 81, U.S. 77 TX, OK, KS, MO, IA, MN, NE Laredo to Duluth; Wichita to Sioux City
Corridor 24: Dalton Highway Alaska 11 AK From Fairbanks to Dalton
Corridor 25: Va. 168/Chesapeake Expressway Virginia 168 VA From NC State Line to Great Bridge Bypass
Corridor 26: CANAMEX Interstate 19, Interstate 10, U.S. 93, Interstate 15 AZ, NV, UT, ID, MT From Nogales to Sweetgrass via Las Vegas
Corridor 27: Camino Real Interstate 25, U.S. 87, Interstate 15 TX, NM, CO, WY, MT Las Cruces to Sweetgrass via Denver and Great Falls
Corridor 28: Birmingham North Beltway None assigned AL From Bessemer to Trussville via Gardendale
Corridor 29: Coalfields Expressway U.S. 121, Va. 83, W.V. 83, 16, 10, 97, 54 VA, WV From Pound to Beckley
Corridor 30: West Coast Corridor and Otay Mesa Freeway Interstate 5, California 905 CA, OR, WA From San Diego to Blaine
Corridor 31: Mon-Fayette Expressway and Southern Pittsburgh Beltway Pennsylvania 43, Future Interstate 576 WV, PA From Morgantown to Pittsburgh
Corridor 32: Wisconsin Development Corridor U.S. 151, U.S. 41 (Proposed Interstate 41), U.S. 10, Wisconsin 29 WI From Dubuque to Eau Claire, Wisconsin, via Madison, Fond du Lac, Oshkosh, Appleton, Green Bay, Marinette, Wausau, and Chippewa Falls. Spur to Appleton and Marshfield.
Corridor 33: Capital Gateway Corridor U.S. 50 and Interstate 395 DC, MD, VA From the proposed intermodal transportation center connected to Interstate 395 in Washington, D.C., to the intersection with Kenilworth Avenue (DC 295) and the Baltimore-Washington Parkway; includes improvements to I-395 corridor
Corridor 34: Alameda Corridor East and Southwest Passage Interstate 10, Interstate 210, California 210 CA From northern terminus of Alameda Corridor 22 through the San Gabriel Valley, connecting to Colton Junction in San Bernardino. Formerly included Interstate 8 between San Diego and Yuma, but it was removed in 2005 SAFETEA-LU act.
Corridor 35: Everett-Tacoma FAST Corridor Interstate 5, Interstate 90, Interstate 405 WA Transportation improvements for freight in greater northwestern Washington state.
Corridor 36: Interstate 86 Interstate 86, Pennsylvania 17, New York 17, U.S. 6 PA, NY From Interstate 90 east of Erie, Pennsylvania, east to Harriman, New York, via Binghamton.
Corridor 37: Interstate 49 South U.S. 90, Interstate 49 LA From Interstate 49 in Lafayette to Interstate 10 in New Orleans.
Corridor 38: Ports to Plains Highway U.S. 87, Interstate 27, Interstate 25, U.S. 287 CO, NM, OK, TX From the Mexican Border via Interstate 27 to Denver, Colorado.
Corridor 39: Interstate 555; U.S. 63 Interstate 555, U.S. 63 AR From Marked Tree, Arkansas, to Interstate 55.
Corridor 40: Greensboro Corridor Interstate 785, U.S. 29 NC, VA Danville, Virginia, to Greensboro, North Carolina.
Corridor 41: Falls-to-Falls Corridor U.S. 53 MN, WI From International Falls on the Minnesota/Canada border to Chippewa Falls, Wisconsin.
Corridor 42A: Corridor 11
Corridor 42B: Corridor 10
U.S. 278, U.S. 78, MS 6, U.S. 72 TN, MS Clean-up of language to original ISTEA Corridors 10 and 11. Corridor 42A is Corridor V (U.S. 278/MS 6) from Interstate 55 near Batesville, Mississippi, to the intersection with U.S. 78 (Corridor X) near Fulton, Mississippi. Corridor 42B is Corridor X (U.S. 78) from near Fulton, Mississippi, to the intersection with Interstate 65 near Birmingham, Alabama.
Corridor 43: U.S. 95 Idaho Corridor U.S. 95 ID Corridor 43 serves the backbone of the state of Idaho: the mostly two-lane U.S. 95.
Corridor 44: Louisiana 1 Corridor Louisiana 1 LA Grand Isle to U.S. 90
Corridor 45: Interstate 22 Corridor Interstate 22, U.S. 78 TN, MS, AL Memphis to Birmingham; duplicates Corridor 10 in Mississippi and Alabama

Corridor 46: Interstate 710 Interstate 710 CA from Port of Long Beach to California 60
Corridor 47: Interstate 87 from Quebec to New York City Interstate 87 NY from New York City north to Rouses Point via Albany
Corridor 48: Route 50 High Plains Corridor Interstate 87 CO, KS from Pueblo, Colorado, east to Newton, Kansas via Dodge City
Corridor 49: Atlantic Commerce Corridor Interstate 95 FL from Miami north to Jacksonville via Daytona Beach
Corridor 50: East-West Corridor U.S. 11, U.S. 2, Interstate 395, Maine 9 NY, VT, NH, ME from Watertown, New York, east to Calais, Maine, generally following U.S. 11 to Rouses Point, U.S. 2 from there east to Burlington, Montpelier, and Bangor, and Maine 9 east to Calais
Corridor 51: SPIRIT Corridor U.S. 54 TX, NM, TX, OK, KS from El Paso to Wichita
Corridor 52: Arkansas State Route 226 Arkansas 226, Interstate 730 AR between U.S. 67 and U.S. 49
Corridor 53: U.S. 6 from Interstate 15 to Interstate 70 in Utah U.S. 6, U.S. 191 UT from Spanish Fork southeast to near Green River via Price
Corridor 54: Farm to Market Corridor California 99, Interstate 9 CA from Wheeler Ridge (Junction Interstate 5) north to Sacramento
Corridor 55: Dallas to Memphis via Little Rock Interstate 20, Interstate 30, Interstate 40 TX, AR, TN from Dallas to Memphis via Little Rock
Corridor 56: La Entrada al Pacifico Corridor U.S. 67, U.S. 385, Interstate 20, FM 1788, Texas 349 TX from Presidio to Fort Stockton via U.S. 67, then U.S. 385 north to Odessa, then Interstate 20 to Farm to Market Road 1788, then north via Texas 349 to Lamesa
Corridor 57: United States Route 41 Corridor Interstate 894, U.S. 45, U.S. 41, Future Interstate 41 WI Milwaukee, Appleton, Green Bay
Corridor 58: Theodore Roosevelt Expressway U.S. 85, U.S. 2, Montana 16 SD, ND, MT Rapid City, Williston, Culbertson
Corridor 59: Central North American Trade Corridor U.S. 83 ND from South Dakota border north to Bismarck and Minot
Corridor 60: Providence Beltline Corridor Interstate 295 RI western bypass of Providence via Interstate 295
Corridor 61: Missouri Corridors Interstate 70, Interstate 72 (U.S. 36), U.S. 67, U.S. 65, U.S. 63, U.S. 54 MO miscellaneous corridors defined by major arterial routes through Missouri
Corridor 62: Georgia Developmental Highway System Corridors Georgia 515, U.S. 82, U.S. 319, U.S. 341, Fall Line Freeway, Georgia 72, Savannah River Parkway (U.S. 25, Georgia 21), U.S. 19, U.S. 1, Georgia 17, U.S. 27, U.S. 441, U.S. 84, Georgia 133, U.S. 280, East-West Highway (U.S. 76), Georgia 40, Georgia 32, Georgia 125, Georgia 15 GA miscellaneous corridors defined by major arterial routes through Georgia
Corridor 63: Liberty Corridor Interstate 95, Interstate 80, Interstate 78, Interstate 287, U.S. 1, U.S. 9, U.S. 46, New Jersey 3, New Jersey 17 NJ miscellaneous corridors defined by major arterial routes in northern New Jersey
Corridor 64: Camden-Philadelphia Corridors Interstate 295, Interstate 676, U.S. 130, New Jersey 42 NJ, PA miscellaneous corridors defined by major arterial routes in southwestern New Jersey and southeastern Pennsylvania
Corridor 65: Interstate 95 Connecticut Interstate 95 CT entire route of I-95 in CT
Corridor 66: Interstate 95 Connecticut Interstate 91 CT entire route of I-91 in CT
Corridor 67: Fairbanks-Yukon International Corridor Alaska Highway, Richardson Highway AK from international border to Fairbanks via Alaska and Richardson Highways
Corridor 68: Washoe County Corridor and U.S. 95 from Las Vegas to Reno Interstate 580, U.S. 95, Alternate U.S. 95 NV from Las Vegas to Reno via Beatty, Hawthorne, Tonopah
Corridor 69: Cross Valley Connector in Santa Clarita -- CA from Interstate 5 to California 14 in Santa Clarita; close to but not same as former alignment of California 126
Corridor 70: Economic Lifeline Corridor Interstate 15 and Interstate 40 CA same as Corridor 16 but also specifies Interstate 215 and California 91
Corridor 71: High Desert/E-220 Corridor E-220 CA from Los Angeles to Las Vegas via Palmdale and Victorville via a westerly extension of California 18 between California 14 and Interstate 15, possibly as a toll road
Corridor 72: Interstate 49 North-South Corridor Interstate 49, U.S. 71 LA, AR, MO identical to Corridor 1
Corridor 73: Louisiana Route 1 Energy Corridor Louisiana 1 LA identical to Corridor 44
Corridor 74: U.S. 90 from Lafayette to New Orleans U.S. 90, Interstate 49 LA identical to Corridor 37
Corridor 75: Louisiana 28 from Fort Polk to Alexandria Louisiana 28 LA from Alexandria to Fort Polk
Corridor 76: Interstate 75 in Ohio Interstate 75 OH from Cincinnati to Toledo via Dayton
Corridor 77: U.S. 24 in Ohio U.S. 24 OH same as the Ohio section of Corridor 4
Corridor 78: Interstate 71 in Ohio Interstate 71 OH from Cincinnati to Cleveland via Columbus
Corridor 79: Interstate 376 Interstate 376 PA from Sharon to Monroeville via New Castle, Beaver Falls, and Pittsburgh
Corridor 80: Intercounty Connector Interstate 370 MD from Interstate 370 spur east to Interstate 95 and U.S. 1 north of Washington metropolitan area

For a complete list of source information, go to the High Priority Corridor Sources Page.

Page Updated August 25, 2005.