Interstates 75, 76, and 77 and their Signed Branch Routes

Interstate South/West Terminus North/East Terminus
75 Hialeah, FL Canadian Border – Sault St. Marie, MI
175 FL St. Petersburg Downtown St. Petersburg
275 FL Ellenton Wesley Chapel
275 IN/KY/OH Beltway – Cincinnati
275 MI Flat Rock Farmington Hills
275 TN Downtown Knoxville northern Knoxville
375 FL St. Petersburg Downtown St. Petersburg
375 MI Downtown Detroit Detroit
475 GA Macon Popes Ferry
475 MI southern Flint northern Flint
475 OH Perrysburg Toledo
575 GA Marietta Nelson
675 GA near Stockbridge southeast of Atlanta
675 MI Saginaw Zilwaukee
675 OH Singing Hills Fairborn
76 (west) Wheat Ridge, CO near Big Spring, NE
76 (east) Seville, OH Camden, NJ
176 PA Morgantown Reading
276 PA King of Prussia NJ/PA State line
376 PA Pittsburgh Monroeville
476 PA Chester Clarks Summit
676 NJ/PA Philadelphia, PA Camden, NJ
77 Columbia, SC Cleveland, OH
277 NC Downtown Charlotte uptown Charlotte
The overlap for Interstates 40 & 75 swells to ten lanes on the west side of Knoxville. 186,045 vehicles per day were recorded on this stretch in 2013. Photo taken 08/17/13.

Expansion of the Interstates 40 & 75 overlap in Tennessee was completed in 2002.

Interstates 76 and 77 combine for 1.9 miles through Akron, Ohio. Photo taken 06/15/10.

Interstate 76 replaced Interstate 80S through Ohio in 1973. The Youngstown freeway loop is signed as I-680 instead of an I-X76, referencing the previous numbering of the Ohio Turnpike eastern extent as I-80S.