List of highways bypassed by Interstate Highways

Last updated October 23, 2019

This is a list of highways, mostly U.S. Routes, bypassed by Interstate Highways. Unless otherwise specified, designations are as of ca. 1960, at the time the final Interstate plan was adopted. Interstates marked as "later addition" were added after the early 1960s. Locations and corridors are approximate.

Interstate 2

U.S. Route 83, Palmview to Harlingen, Texas (later addition)

U.S. Highway 83 (US 83), dedicated as the Texas Vietnam Veterans Memorial Highway, is a U.S. Highway in the U.S. state of Texas that begins at US 77 in Brownsville and follows the Rio Grande to Laredo, then heads north through Abilene to the Oklahoma border north of Perryton, the seat of Ochiltree County. It is the longest highway in Texas at a length of about 895 miles (1,440 km), besting the east–west I-10, which has a length of 879 miles (1,415 km).

Palmview is a city in Hidalgo County, Texas. The population is 5,460 as of the 2010 United States Census. It is part of the McAllen–Edinburg–Mission and Reynosa–McAllen metropolitan areas.

Harlingen, Texas City in Texas, United States

Harlingen is a city in Cameron County in the central region of the Rio Grande Valley of the southern part of the U.S. state of Texas, about 30 miles (48 km) from the coast of the Gulf of Mexico. The city covers more than 40 square miles (104 km²) and is the second-largest city in Cameron County, as well as the fourth-largest in the Rio Grande Valley. As of the 2010 census, the city had a population of 64,849, for a growth rate of 12.5% since the 2000 census.

Interstate 4

U.S. Route 92, St. Petersburg, Florida to Daytona Beach, Florida

U.S. Route 92 or U.S. Highway 92 is a 181-mile (291 km.) intrastate U.S. Route in the U.S. state of Florida. The western terminus is at US 19 Alt. and SR 687 in downtown St. Petersburg. The eastern terminus is at SR A1A in Daytona Beach.

St. Petersburg, Florida City in Florida, United States

St. Petersburg is a city in Pinellas County, Florida, United States. As of the 2018 census estimate, the population was 265,098, making it the fifth-most populous city in Florida and the largest in the state that is not a county seat.

Daytona Beach is a city in Volusia County, Florida, United States. It lies about 51 miles (82.1 km) northeast of Orlando, 86 miles (138.4 km) southeast of Jacksonville, and 265 miles (426.5 km) northwest of Miami. In the 2010 U.S. Census, it had a population of 61,005. It is a principal city of the Deltona–Daytona Beach–Ormond Beach metropolitan area, which was home to 600,756 people as of 2013. Daytona Beach is also a principal city of the Fun Coast region of Florida.

Interstate 5 (including Interstate 5E)

U.S. Route 101, San Ysidro, California to Los Angeles, California
U.S. Route 99, Los Angeles to Wheeler Ridge, California
New route mostly along the west side of the San Joaquin Valley from Wheeler Ridge to Sacramento, California, but supplanting a short segment of U.S. Route 50 between Tracy, California, and Stockton, California
U.S. Route 99W, Sacramento to Red Bluff, California
U.S. Route 99, Red Bluff to Junction City, Oregon
U.S. Route 99E, Junction City to Portland, Oregon
U.S. Route 99, Portland to Blaine, Washington

U.S. Route 101 (US 101) is a major north–south United States Numbered Highway, stretching from Los Angeles, California to Tumwater, Washington. The California portion of US 101 is one of the last remaining and longest U.S. Routes still active in the state, and the longest highway of any kind in California. US 101 was also one of the original national routes established in 1926. Significant portions of US 101 between the Los Angeles area and the San Francisco Bay Area follow El Camino Real, the historic road connecting the former Alta California's 21 missions.

San Ysidro is a district of the City of San Diego, immediately north of the U.S.-Mexico border. It neighbors Otay Mesa West to the north, Otay Mesa to the east, and Nestor and the Tijuana River Valley to the west; together these communities form South San Diego, a practical exclave of the City of San Diego. Major thoroughfares include Beyer Boulevard and San Ysidro Boulevard.

Los Angeles, officially the City of Los Angeles and often known by its initials L.A., is the most populous city in California; the second most populous city in the United States, after New York City; and the third-most populous city in North America, after Mexico City and New York City. With an estimated population of nearly four million people, Los Angeles is the cultural, financial, and commercial center of Southern California. The city is known for its Mediterranean climate, ethnic diversity, Hollywood, the entertainment industry, and its sprawling metropolis.

Interstate 5W (now Interstate 580, Interstate 80 and Interstate 505)

U.S. Route 50, Stockton to Oakland, California
U.S. Route 40, Oakland to west of Sacramento, California
U.S. Route 99W, west of Sacramento to northwest of Sacramento

U.S. Route 50 (US 50) is a transcontinental United States Numbered Highway, stretching from West Sacramento, California, in the west to Ocean City, Maryland, in the east. The California portion of US 50 runs east from Interstate 80 (I-80) in West Sacramento to the Nevada state line in South Lake Tahoe. A portion in Sacramento also has the unsigned designation of Interstate 305. The western half of the highway in California is a four-or-more-lane divided highway, mostly built to freeway standards, and known as the El Dorado Freeway outside of downtown Sacramento. US 50 continues as an undivided highway with one eastbound lane and two westbound lanes until the route reaches the canyon of the South Fork American River at Riverton. The remainder of the highway, which climbs along and out of the canyon, then over the Sierra Nevada at Echo Summit and into the Lake Tahoe Basin, is primarily a two-lane road.

Stockton is the county seat of San Joaquin County in the Central Valley of the U.S. state of California. Stockton was founded by Captain Charles Maria Weber in 1849 after he acquired Rancho Campo de los Franceses. The city is named after Robert F. Stockton, and it was the first community in California to have a name not of Spanish or Native American origin. The city is located on the San Joaquin River in the northern San Joaquin Valley and had an estimated population of 311,178 by the California Department of Finance for 2018. Stockton is the 13th largest city in California and the 63rd largest city in the United States. It was named an All-America City in 1999, 2004, 2015 and again in 2017.

Oakland is the largest city and the county seat of Alameda County, California, United States. A major West Coast port city, Oakland is the largest city in the East Bay region of the San Francisco Bay Area, the third largest city overall in the San Francisco Bay Area, the eighth most populated city in California, and the 45th largest city in the United States. With a population of 428,827 as of 2018, it serves as a trade center for the San Francisco Bay Area; its Port of Oakland is the busiest port in the San Francisco Bay, the entirety of Northern California, and the fifth busiest in the United States of America. An act to incorporate the city was passed on May 4, 1852, and incorporation was later approved on March 25, 1854, which officially made Oakland a city. Oakland is a charter city.

Interstate 8

U.S. Route 80, San Diego, California to Gila Bend, Arizona
Arizona State Route 84, Gila Bend to Casa Grande, Arizona

U.S. Route 80 or U.S. Highway 80 (US 80) is a major east-west United States Numbered Highway in the Southern United States, much of which was once part of the early auto trail known as the Dixie Overland Highway. As the "0" in the route number indicates, it was originally a cross-country route, from the Pacific Ocean to the Atlantic Ocean. Its original western terminus was at Historic US 101 in San Diego, California. However, the entire segment west of Dallas, Texas, has been decommissioned in favor of various Interstate Highways and state highways. Currently, the highway's western terminus is at an interchange with Interstate 30 (I-30) on the Dallas–Mesquite, Texas city line. The highway's eastern terminus is in Tybee Island, Georgia near the interchange of I-516 and US 17 in Savannah, at the intersection of State Route 26, Butler Avenue, Inlet Avenue, and Tybrisa Street, near the Atlantic Ocean. Between Jonesville, Texas and Kewanee, Mississippi, US 80 runs parallel to or concurrently with Interstate 20. US 80 also currently runs through Dallas, Texas; Shreveport, Louisiana; Jackson, Mississippi; Montgomery, Alabama; Columbus, Georgia; Macon, Georgia; and Savannah, Georgia.

San Diego is a city in the U.S. state of California on the coast of the Pacific Ocean, approximately 120 miles (190 km) south of Los Angeles and immediately adjacent to the border with Mexico. With an estimated population of 1,425,976 as of July 1, 2018, San Diego is the eighth-largest city in the United States and second-largest in California. It is part of the San Diego–Tijuana conurbation, the second-largest transborder agglomeration between the U.S. and a bordering country after Detroit–Windsor, with a population of 4,922,723 people. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center.

Gila Bend, Arizona Town in Arizona, United States

Gila Bend, founded in 1872, is a town in Maricopa County, Arizona, United States. The town is named for an approximately 90-degree bend in the Gila River, which is near the community's current location. According to the 2010 census, the population of the town is 1,922.

Interstate 10

U.S. Route 66, Santa Monica to Los Angeles, California
U.S. Route 70 (also parts of U.S. Route 99 and U.S. Route 60), Los Angeles to Brenda, Arizona
New route, Brenda to Buckeye, Arizona ^[1]
Arizona State Route 85 (formerly U.S. Route 80) and U.S. Route 60, Buckeye to Phoenix, Arizona
Arizona State Route 87 and Arizona State Route 93, Phoenix to Casa Grande, Arizona
Arizona State Route 84, Casa Grande to Tucson, Arizona
U.S. Route 80, Tucson to Benson, Arizona,
Arizona State Route 86 and old New Mexico State Road 14, Benson to Lordsburg, New Mexico
U.S. Route 80, Lordsburg to east of Van Horn, Texas
U.S. Route 290, east of Van Horn to east of Junction, Texas
Texas State Highway 27, east of Junction to Comfort, Texas
U.S. Route 87, Comfort to San Antonio, Texas
U.S. Route 90, San Antonio to Lafayette, Louisiana
New route, Lafayette to Baton Rouge, Louisiana
U.S. Route 61, Baton Rouge to New Orleans, Louisiana
U.S. Route 90, New Orleans to Jacksonville, Florida

Interstate 11

U.S. Route 93 (and part of U.S. Route 95), Henderson, Nevada to Arizona (later addition)

Interstate 12

U.S. Route 190, Baton Rouge to Slidell, Louisiana

Interstate 14

U.S. Route 190, Belton, Texas to Copperas Cove, Texas (later addition)

Interstate 15

U.S. Route 395, San Diego to San Bernardino, California (added 1968)
U.S. Route 91, San Bernardino to Sweetgrass, Montana

Interstate 15W (Idaho) (now Interstate 86)

U.S. Route 30N, Burley to Pocatello, Idaho

Interstate 16

U.S. Route 80, Macon to Savannah, Georgia

Interstate 17

Arizona State Route 69, Phoenix to Cordes Junction, Arizona
New route, Cordes Junction to Camp Verde, Arizona
Old Arizona State Route 79, Camp Verde to Flagstaff, Arizona
U.S. Route 89A, Flagstaff, Arizona

Interstate 19

U.S. Route 89, Nogales to Tucson, Arizona

Interstate 20

U.S. Route 80, east of Van Horn, Texas to Meridian, Mississippi
U.S. Route 11, Meridian to Birmingham, Alabama
U.S. Route 78, Birmingham to Atlanta, Georgia
U.S. Route 278, Atlanta to Augusta, Georgia
U.S. Route 1, Augusta to Columbia, South Carolina
U.S. Route 76, Columbia to Florence, South Carolina

Interstate 22

U.S. Route 78, Memphis, Tennessee to Birmingham, Alabama (later addition)

Interstate 24

Illinois Route 37, south of Marion, Illinois to Vienna, Illinois
U.S. Route 45, Vienna to Paducah, Kentucky
U.S. Route 62, Paducah to Eddyville, Kentucky
New route (roughly along Kentucky highways 93, 117, & 128), Eddyville to Oak Grove, Kentucky
U.S. Route 41, Oak Grove to Chattanooga, Tennessee

Interstate 25

Interstate 26

U.S. Route 23, Kingsport, Tennessee to Asheville, North Carolina (later addition)
U.S. Route 25, Asheville to Hendersonville, North Carolina
U.S. Route 176, Hendersonville to Spartanburg, South Carolina
U.S. Route 221 Spartanburg to Laurens, South Carolina
U.S. Route 76, Laurens to Columbia, South Carolina
U.S. Route 176, Columbia to Goose Creek, South Carolina
U.S. Route 52, Goose Creek to Charleston, South Carolina

Interstate 27

U.S. Route 87, Lubbock to Amarillo, Texas (later addition)

Interstate 29

U.S. Route 71, Kansas City to St. Joseph, Missouri
U.S. Route 275, St. Joseph to Council Bluffs, Iowa
U.S. Route 75, Council Bluffs to Sioux City, Iowa
U.S. Route 77, Sioux City to Watertown, South Dakota
U.S. Route 81, Watertown to Pembina, North Dakota

Interstate 30

U.S. Route 80, Aledo, Texas to Dallas, Texas (later addition)
U.S. Route 67, Dallas to Little Rock, Arkansas

Interstate 35 (including Interstate 35E (Texas))

U.S. Route 81, Laredo to Hillsboro, Texas
U.S. Route 77, Hillsboro to Tonkawa, Oklahoma
U.S. Route 177, Tonkawa to South Haven, Kansas
U.S. Route 81, South Haven to Wichita, Kansas
New Route roughly along U.S. Route 54 & K-99 (Kansas Highway) Wichita to Emporia, Kansas
U.S. Route 50, Emporia to Overland Park, Kansas
U.S. Route 69, Overland Park to Albert Lea, Minnesota
U.S. Route 65, Albert Lea to Minneapolis–Saint Paul, Minnesota
U.S. Route 61, Minneapolis–Saint Paul to Duluth, Minnesota

Interstate 35W (Texas)

U.S. Route 81, Hillsboro, Texas to Fort Worth, Texas
U.S. Route 377, Fort Worth to Denton, Texas

Interstate 35W (Kansas) (now Interstate 135)

U.S. Route 81, Wichita, Kansas to Salina, Kansas

Interstate 37

Texas State Highway 9 (roughly along the path of U.S. Route 181), Corpus Christi to north of George West, Texas
U.S. Route 281, north of George West to San Antonio, Texas

Interstate 39

U.S. Route 51, Bloomington–Normal, Illinois to Wausau, Wisconsin (later addition)

Interstate 40

U.S. Route 66, Barstow, California to Oklahoma City, Oklahoma
U.S. Route 62, Oklahoma City to Henryetta, Oklahoma
U.S. Route 266, Henryetta to Warner, Oklahoma
U.S. Route 64, Warner to Conway, Arkansas
U.S. Route 65, Conway to Little Rock, Arkansas
U.S. Route 70, Little Rock to Statesville, North Carolina
U.S. Route 64, Statesville to Mocksville, North Carolina
U.S. Route 158, Mocksville to Winston-Salem, North Carolina
U.S. Route 421, Winston-Salem to Greensboro, North Carolina
U.S. Route 70, Greensboro to Garner, North Carolina
North Carolina Highway 50, Garner to Faison, North Carolina (later addition)
U.S. Route 117, Faison to Wilmington, North Carolina (later addition)

Interstate 41

U.S. Route 41 (roughly along the path of U.S. Route 45), Russell, Illinois to Howard, Wisconsin (later addition)

Interstate 43

Wisconsin Highway 15, Beloit to Milwaukee, Wisconsin (later addition)
U.S. Route 141, Milwaukee to Green Bay, Wisconsin (later addition)

Interstate 44

U.S. Route 277, Wichita Falls, Texas to Oklahoma City, Oklahoma (later addition)
U.S. Route 66, Oklahoma City to St. Louis, Missouri

Interstate 45

U.S. Route 75, Galveston, Texas to Dallas, Texas

Interstate 49

U.S. Route 167, Lafayette to Alexandria, Louisiana (later addition)
Louisiana Highway 1 (roughly along the path of U.S. Route 71), Alexandria to Shreveport, Louisiana
U.S. Route 71, Pineville to Kansas City, Missouri (later addition)

Interstate 55

U.S. Route 51, New Orleans, Louisiana to Memphis, Tennessee
U.S. Route 61, Memphis to St. Louis, Missouri
U.S. Route 66, St. Louis to Chicago, Illinois

Interstate 57

U.S. Route 60, Sikeston, Missouri to Cairo, Illinois
Illinois Route 37 (roughly along the path of U.S. Route 51), Cairo to Effingham, Illinois
U.S. Route 45, Effingham to Chicago, Illinois

Interstate 59

U.S. Route 11, Slidell, Louisiana to Chattanooga, Tennessee

Interstate 64

U.S. Route 460, St. Louis, Missouri to Louisville, Kentucky
U.S. Route 60, Louisville to Lexington, Virginia
U.S. Route 11, Lexington to Staunton, Virginia
U.S. Route 250, Staunton to Richmond, Virginia
U.S. Route 60, Richmond to Norfolk, Virginia

Interstate 65

U.S. Route 31, Mobile, Alabama to Nashville, Tennessee
U.S. Route 31W, Nashville to Louisville, Kentucky
U.S. Route 31, Louisville to Indianapolis, Indiana
U.S. Route 52, Indianapolis to Lafayette, Indiana
U.S. Route 231, Lafayette to Crown Point, Indiana
U.S. Route 41, Crown Point to Gary, Indiana

Interstate 66

Virginia State Route 55, Strasburg to east of Warrenton, Virginia
U.S. Route 29, east of Warrenton to Washington, D.C.

Interstate 68

West Virginia Route 73, West Virginia Route 26, Pennsylvania Route 281 and U.S. Route 40, Morgantown, West Virginia to Hancock, Maryland (later addition)

Interstate 69

U.S. Route 59, Rosenberg to Cleveland, Texas (later addition)
Mississippi Highway 304, Banks to Hernando, Mississippi (later addition)
U.S. Route 51, Hernando, Mississippi to Memphis, Tennessee (later addition)
U.S. Route 62, Calvert City to Nortonville, Kentucky (later addition)
U.S. Route 41, Nortonville to Madisonville, Kentucky (later addition)
Indiana State Road 57, Elberfield to Crane, Indiana (later addition)
Indiana State Road 37, Indianapolis to Fort Wayne, Indiana
U.S. Route 27, Fort Wayne to Marshall, Michigan
U.S. Route 27, Marshall to Lansing, Michigan (later addition)
M-78, Lansing to Flint, Michigan (later addition)
M-21, Flint to Port Huron, Michigan (later addition)

Interstate 69W

U.S. Route 59, Laredo, Texas (later addition)

Interstate 69C

U.S. Route 281, Pharr to Edinburg, Texas (later addition)

Interstate 69E

U.S. Route 77, Brownsville to Raymondville, Texas and Robstown to Corpus Christi, Texas (later addition)

Interstate 70 (including Interstate 70N)

New route, Cove Fort, Utah to Sevier, Utah
U.S. Route 89, Sevier to Salina, Utah
U.S. Route 50, Salina to Grand Junction, Colorado
U.S. Route 6, Grand Junction to Denver, Colorado
U.S. Route 40, Denver to Limon, Colorado
U.S. Route 24, Limon to Oakley, Kansas
U.S. Route 40, Oakley to Washington, Pennsylvania
U.S. Route 19, Washington to Pittsburgh, Pennsylvania
U.S. Route 30, Pittsburgh to Breezewood, Pennsylvania
Pennsylvania Route 126 and U.S. Route 522, Breezewood to Hancock, Maryland
U.S. Route 40, Hancock to Baltimore, Maryland

Interstate 70S (Pennsylvania)

Pennsylvania Route 71, Washington to Greensburg, Pennsylvania

Interstate 70S (Maryland) (now Interstate 270)

U.S. Route 240, Frederick, Maryland to Washington, D.C.

Interstate 71

U.S. Route 42, Louisville, Kentucky to Cincinnati, Ohio
U.S. Route 22, Cincinnati to Washington Court House, Ohio
U.S. Route 62, Washington Court House to Columbus, Ohio
U.S. Route 23, Columbus to Delaware, Ohio
U.S. Route 42, Delaware to Cleveland, Ohio

Interstate 72

U.S. Route 36, Hannibal, Missouri to Champaign–Urbana, Illinois (later addition)
U.S. Route 54, Pittsfield to Springfield, Illinois (later addition)

Interstate 73

U.S. Route 220, Rockingham to Greensboro, North Carolina (later addition)

Interstate 74

U.S. Route 150, Moline, Illinois to Danville, Illinois
U.S. Route 136, Danville to Indianapolis, Indiana
U.S. Route 52, Indianapolis to Cincinnati, Ohio
U.S. Route 52, Mount Airy to Winston-Salem, North Carolina (later addition)
U.S. Route 311, Winston-Salem to Asheboro, North Carolina (later addition)
U.S. Route 220, Asheboro to Rockingham, North Carolina (later addition)

Interstate 75

U.S. Route 41, Hialeah, Florida to Chattanooga, Tennessee
U.S. Route 11, Chattanooga to Knoxville, Tennessee
U.S. Route 25W, Knoxville to Corbin, Kentucky
U.S. Route 25, Corbin to Detroit, Michigan
U.S. Route 10, Detroit to Bay City, Michigan
M-76, Bay City to Grayling, Michigan
U.S. Route 27, Grayling to St. Ignace, Michigan
U.S. Route 2, St. Ignace to Sault Ste. Marie, Michigan

Interstate 77

U.S. Route 21, Columbia, South Carolina to Charlotte, North Carolina (later addition)
U.S. Route 21, Charlotte to Cleveland, Ohio

Interstate 78

U.S. Route 22, Harrisburg, Pennsylvania to New York, New York

Interstate 79

U.S. Route 119, Charleston to Weston, West Virginia (added in 1963)
U.S. Route 19, Weston to Pittsburgh, Pennsylvania (added in 1963)
U.S. Route 19, Pittsburgh to Erie, Pennsylvania

Interstate 80

U.S. Route 40, San Francisco, California to east of Salt Lake City, Utah
U.S. Route 189, East of Salt Lake City to Echo, Utah
U.S. Route 30S, Echo to Granger, Wyoming
U.S. Route 30, Granger to Grand Island, Nebraska
U.S. Route 34, Grand Island to Lincoln, Nebraska
U.S. Route 6, Lincoln to Chicago, Illinois
U.S. Route 20, Chicago to Norwalk, Ohio
Ohio State Route 18, Norwalk to Youngstown, Ohio
New route (partly U.S. Route 62 and U.S. Route 322), Youngstown to Stroudsburg, Pennsylvania
U.S. Route 46, Stroudsburg to New York, New York

Interstate 80N (Oregon-Idaho-Utah) (now Interstate 84)

U.S. Route 30, Portland, Oregon to Burley, Idaho
U.S. Route 30S, Burley to Echo, Utah

Interstate 80S (Colorado) (now Interstate 76)

U.S. Route 6, Denver, Colorado to Sterling, Colorado
U.S. Route 138, Sterling to Big Springs, Nebraska

Interstate 80S (Pennsylvania) (now Interstate 76)

Ohio State Route 14 and Pennsylvania Route 51, Youngstown, Ohio to Pittsburgh, Pennsylvania
U.S. Route 30, Pittsburgh to Chambersburg, Pennsylvania
U.S. Route 11, Chambersburg to Harrisburg, Pennsylvania
U.S. Route 322, Harrisburg to Downingtown, Pennsylvania
U.S. Route 30, Downingtown to Philadelphia, Pennsylvania

Interstate 580 (California)

U.S. Route 50, Oakland to Tracy, California
California State Route 33 around Tracy, California

The above segment was originally designated as Interstate 5W.

State Route 17 Oakland to San Rafael, California (later addition)

Interstate 81

U.S. Route 11, Dandridge, Tennessee to Harrisburg, Pennsylvania
New route, Harrisburg to Scranton, Pennsylvania
U.S. Route 11, Scranton to Watertown, New York
New York State Route 180, Watertown to north of Clayton, New York

Interstate 81E (now Interstate 380)

U.S. Route 611, Stroudsburg to Scranton, Pennsylvania

Interstate 82

U.S. Route 97, Ellensburg to Toppenish, Washington
U.S. Route 410, Toppenish to Pasco, Washington
U.S. Route 395, Pasco to Umatilla, Oregon

Interstate 83

U.S. Route 111, Baltimore, Maryland to Harrisburg, Pennsylvania

Interstate 84

U.S. Route 6, Scranton, Pennsylvania to Hartford, Connecticut
U.S. Route 202, Brewster, New York to Danbury, Connecticut
Connecticut Route 15 and Massachusetts Route 15, Hartford to Sturbridge, Massachusetts

Interstate 84

U.S. Route 30, Portland, Oregon to Junction with Interstate 86
U.S. Route 20, Caldwell to Mountain Home, Idaho
U.S. Route 26, Caldwell to Bliss, Idaho

Interstate 85

U.S. Route 80, Montgomery, Alabama to Tuskegee, Alabama
U.S. Route 29, Tuskegee to Greensboro, North Carolina
U.S. Route 70, Greensboro to Durham, North Carolina
U.S. Route 15, Durham to Oxford, North Carolina
U.S. Route 158, Oxford to Henderson, North Carolina
U.S. Route 1, Henderson to Petersburg, Virginia

Interstate 86

U.S. Route 30, Declo to Chubbuck

Interstate 86

Pennsylvania Route 17 and New York State Route 17, Erie, Pennsylvania to Harriman, New York (later addition)

Interstate 87

Interstate 88

Illinois State Route 5, Quad Cities to Sterling, Illinois (later addition)
U.S. Route 30, Sterling to Aurora, Illinois (later addition)
U.S. Route 34, Aurora to Chicago, Illinois (later addition)

Interstate 88

New York State Route 7, Binghamton to Schenectady, New York (later addition)

Interstate 89

U.S. Route 4, White River Junction, Vermont to Concord, New Hampshire
Vermont Route 14, White River Junction to Montpelier, Vermont
U.S. Route 2, Montpelier to Burlington, Vermont
U.S. Route 7, Burlington to north of St. Albans, Vermont

Interstate 90

U.S. Route 10, Seattle, Washington to Billings, Montana
U.S. Route 87, Billings to Buffalo, Wyoming
U.S. Route 14, Buffalo to Rapid City, South Dakota
U.S. Route 16, Rapid City to Portage, Wisconsin
U.S. Route 51, Portage to Rockford, Illinois
U.S. Route 20, Rockford to Boston, Massachusetts

Interstate 91

U.S. Route 5, New Haven, Connecticut to Canada–United States border

Interstate 93

U.S. Route 3, Boston, Massachusetts to Franconia, New Hampshire
New Hampshire Route 18 and Vermont Route 18, Franconia to St. Johnsbury, Vermont

Interstate 94

U.S. Route 10, Billings, Montana to Fargo, North Dakota
U.S. Route 52, Fargo to Minneapolis–Saint Paul, Minnesota
U.S. Route 12, Minneapolis–Saint Paul to Madison, Wisconsin
U.S. Route 18, Madison to Milwaukee, Wisconsin
U.S. Route 41, Milwaukee to Chicago, Illinois
U.S. Route 12, Chicago to Detroit, Michigan
U.S. Route 25, Detroit to Canada–United States border

Interstate 95

U.S. Route 1, Miami to Jacksonville, Florida
U.S. Route 17, Jacksonville to Walterboro, South Carolina
U.S. Route 15, Walterboro to Summerton, South Carolina
U.S. Route 301, Summerton to Petersburg, Virginia
U.S. Route 1, Petersburg to Baltimore, Maryland
U.S. Route 40, Baltimore to Wilmington, Delaware
U.S. Route 202, Newport, Delaware to Wilmington
U.S. Route 13, Wilmington to Trenton, New Jersey
U.S. Route 1, Trenton to Brunswick, Maine
U.S. Route 201, Brunswick to Waterville, Maine
Maine State Route 11, Waterville to Newport, Maine
U.S. Route 2, Newport to Houlton, Maine

Interstate 195 (Rhode Island–Massachusetts)

U.S. Route 6, Providence, Rhode Island to Wareham, Massachusetts

Interstate 96 (now partly Interstate 196)

U.S. Route 31, Benton Harbor to Holland, Michigan
M-21, Holland to Grand Rapids, Michigan
U.S. Route 16, Grand Rapids to Detroit, Michigan

Interstate 196 (now Interstate 96)

U.S. Route 16, Muskegon to Grand Rapids, Michigan

Interstate 97

Maryland Route 178 and Maryland Route 3, Annapolis to Baltimore, Maryland (later addition)

Interstate 99

U.S. Route 220, Bedford to State College, Pennsylvania (later addition)

Interstate 238

California State Route 238, Castro Valley to San Leandro, California (later addition)

Interstate 287

U.S. Route 202, Somerville, New Jersey to Suffern, New York (later addition)

References

↑ "Archived copy". Archived from the original on March 4, 2016. Retrieved August 1, 2015.CS1 maint: archived copy as title (link)

Esso; General Drafting Company (1964). United States Featuring The Interstate Highway System (Map). Humble Oil and Refining Company.^{[ full citation needed ]}

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[1] "Archived copy". Archived from the original on March 4, 2016. Retrieved August 1, 2015.CS1 maint: archived copy as title (link)

v t e Primary Interstate Highways
Signed	2 4 5 8 10 11 12 14 15 16 17 19 20 22 24 25 26 27 29 30 35 37 39 40 41 43 44 45 49 55 57 59 64 65 66 68 69 70 71 72 73 74 75 76 CO–NE OH–NJ 77 78 79 80 81 82 83 84 OR–UT PA–MA 85 86 ID PA–NY 87 NC NY 88 IL NY 89 90 91 93 94 95 96 97 99 H-1 H-2 H-3
Unsigned	A-1 A-2 A-3 A-4 PRI-1 PRI-2 PRI-3
Lists	Primary Auxiliary Suffixed Business Future
Other	Standards Bypassed Gaps Tolled
Major Interstates highlighted

List of highways bypassed by Interstate Highways

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