U.S. Highway 78
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U.S. Highway 78

U.S. Route 78 marker

U.S. Route 78
Route information
Length715 mi[] (1,151 km)
Major junctions
West end / / at Memphis, TN
East endLine Street at Charleston, SC
StatesTennessee, Mississippi, Alabama, Georgia, South Carolina
Highway system

  • Alabama Highways

  • TN ->
    MS ->
    AL ->

    U.S. Route 78 (US 78) is an east-west United States highway that runs for 715 miles (1,151 km) from Memphis, Tennessee, to Charleston, South Carolina. From Byhalia, Mississippi to Birmingham, Alabama, US 78 is designated as Interstate 22. The highway's western terminus is at U.S. Route 64/U.S. Route 70/U.S. Route 79 (Second Street) in Memphis, Tennessee, and its eastern terminus is on Line Street, in Charleston, South Carolina. Ironically, one of its auxiliary routes, US 278, is actually longer in length than US 78.

    Route description

      mi km
    TN 14.7 23.6
    MS 118.0 189.9
    AL 194.0 312.2
    GA 233.3 375.5
    SC 141.0 226.9
    Total 701.7 1,127.6


    Map showing the west end of US 78 in downtown Memphis.

    US 78 runs along Linden Avenue, Somerville Street, E. H. Crump Boulevard, and Lamar Avenue through Memphis, Tennessee. In Tennessee, US 78 is historically known as Pigeon Roost Road, and some aborted sections of the highway in Mississippi also claim that name as well as Lamar Avenue. Throughout the Tennessee portion, US 78 is overlapped in its entirety by State Route 278 (SR 278), along Linden Avenue and Somerville Street, and State Route 4 (SR 4) along E. H. Crump Boulevard and Lamar Avenue.[1]


    US 78 is a freeway for its entire length in Mississippi. The section from its intersection with Interstate 269 in Byhalia, Mississippi to the Alabama state line is designated as Interstate 22. The highway runs across the northeastern rural part of the state, connecting several population centers. Mississippi's portion of US 78 is defined in Mississippi Code Annotated § 65-3-3. The old routing of US 78 through the state is signed as MS 178.


    US 78 is a major east-west state highway across the central part of Alabama. It is internally designated State Route 4 (SR 4) by the Alabama Department of Transportation, though the only section of State Route 4 that is signed is along portions mainly west of Jasper. The section from the Mississippi state line to near Graysville is concurrent with Interstate 22; from Graysville south to Birmingham, US 78 takes its original routing. East of Birmingham to the Georgia state line, US 78 has been replaced as a major through-route by Interstate 20. The two routes roughly parallel each other, with junctions at Leeds and Pell City.[2]

    West of Jasper, old US 78 is signed as AL 118 to Guin, and the segment from Guin northward to I-22 at Hamilton is signed as US 43/US 278.


    US 78 enters Georgia in Haralson County, and then proceeds through Carroll County and Douglas County. In Douglasville, located in Douglas County, US 78 runs through the downtown, historical part of the city. It is the original thoroughfare for these Georgia counties.

    There is another short freeway portion east of Atlanta, leading from just inside (west of) I-285 (the Perimeter) eastward to the suburbs of Stone Mountain, Georgia, and Snellville, Georgia. This portion is named the Stone Mountain Freeway, and has an excellent view of Stone Mountain while traveling eastbound. Along this route, US 78 is largely conterminous with Ponce de Leon Avenue.

    The route then continues eastward through DeKalb, Gwinnett, Walton, and Oconee counties. In Oconee county US 78 leaves Moina Michael Highway at the SR 316 interchange, turning right and running concurrent with SR 316/US 29. (From this point, Moina Michael Highway is signed as US 78 Business, which follows the original route of US 78 through Athens, Ga.) At the terminal eastern interchange of SR 316 both US 78 and US 29 turn right and join with SR 10 Loop, a mostly interstate-grade bypass that rings Athens-Clarke County. US 78 exits the bypass and turns right at the Lexington Road interchange. From there US 78 passes through Oglethorpe, Wilkes, McDuffie and Columbia Counties into Augusta and then onto one of the twin bridges across the Savannah River into South Carolina.[3]

    South Carolina

    US 78 provides the most direct route between Augusta and Charleston, through the South Carolina Lowcountry. Crossing Savannah River into the state, it goes northeast into Aiken before going southeasterly through the cities and towns of Williston, Blackville, Denmark, Bamberg, Branchville, and St. George. East of Dorchester, it parallels Interstate 26 into downtown Charleston, where it ends.[4]


    In western Alabama, the historical name of US 78 is Bankhead Highway. It is also known by this name in portions of Georgia, including Atlanta, and the Bankhead neighborhood takes its name from that stretch of road. Also, the old section of US 78 (now MS 178) that travels through downtown New Albany, Mississippi, is named Bankhead Street.

    Throughout the 2000s, US 78 has been gradually upgraded into a four-lane freeway in Mississippi and Alabama and signed as Interstate 22. US 78 is completely concurrent with I-22 from Byhalia, Mississippi to Birmingham, Alabama.


    After the completion of Interstate 22 throughout the 2010s, it is uncertain whether US 78 will be decommissioned west of Birmingham or the old route recommissioned as US 78 upon completion of Interstate 22. If the old route is recommissioned as US 78, parts of I-22 and US 78 would be forced to overlap. A stretch from just west of Hamilton, Alabama to the first exit in Mississippi, as well as a stretch from MS 25 in Fulton, Mississippi to the next exit west of Fulton after crossing the Tennessee-Tombigbee waterway will overlap. The Hamilton area overlap would be due to the old US 78 routing no longer exists west of Hamilton having been upgraded to I-22 from Weston westward into Mississippi. The second overlap would be necessary because the old US 78 no longer exists west of downtown Fulton, Mississippi due to the Tennessee-Tombigbee waterway and no bridge in place to carry US 78 traffic on the former route.

    Major intersections

    / / in Memphis
    in Memphis
    in Memphis
    in Memphis
    / west-northwest of Byhalia. Begin I-22 Concurrency.
    in Tupelo
    / in Hamilton
    / near Adamsville
    / near Birmingham. End I-22 Concurrency.
    / in Birmingham
    in Birmingham. The highways travel concurrently through Birmingham.
    / in Birmingham
    in Leeds
    in Leeds
    northwest of Chulavista. The highways travel concurrently to Pell City.
    in Pell City
    in Riverside
    in Oxford.
    in Bremen
    in Lithia Springs. The highways travel concurrently to Druid Hills.
    in Atlanta
    / in Atlanta. The highways travel concurrently through Atlanta.
    / / in Atlanta. US 29/US 78 travels concurrently to the Scottdale-North Decatur city line.
    in Atlanta. The highways travel concurrently to Decatur.
    on the Scottdale-Clarkston city line
    southeast of Bogart. The highways travel concurrently to Athens.
    / in Athens. The highways travel concurrently through Athens.
    in Washington
    north of Thomson
    southeast of Thomson. The highways travel concurrently to Clearwater, South Carolina.
    in Harlem
    in Augusta
    in Augusta. The highways travel concurrently to Aiken, South Carolina.
    in Augusta. The highways travel concurrently to North Augusta, South Carolina.
    South Carolina
    in North Augusta
    in Denmark
    / in Bamberg
    in Branchville. The highways travel concurrently through Branchville.
    in St. George
    in St. George
    east of Dorchester
    in North Charleston
    in North Charleston. The highways travel concurrently through North Charleston.
    in North Charleston
    in North Charleston
    King Street/Line Street in Charleston

    See also

    Related U.S. Routes


    1. ^ Google (April 11, 2014). "Route of US-78 in Tennessee" (Map). Google Maps. Google. Retrieved 2014.
    2. ^ Google (April 11, 2014). "Route of US 78 in Alabama" (Map). Google Maps. Google. Retrieved 2014.
    3. ^ Google (April 11, 2014). "Route of US 78 in Georgia" (Map). Google Maps. Google. Retrieved 2014.
    4. ^ Google (April 11, 2014). "Route of US 78 in South Carolina" (Map). Google Maps. Google. Retrieved 2014.

    External links

    Browse numbered routes
    TN ->
    MS ->
    AL ->

      This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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