Interstate 75 or I -75 is an Interstate Highway in the U.S. state of Georgia. The highway runs north-south from the Florida border at Melrose to the Tennessee border at Graysville. En route you pass through the cities of Macon and Atlanta. Interstate 75 is 571 kilometers long. The highway is striking because almost the entire route has 2×3 or more lanes. It is also one of the widest roads in the United States in the Atlanta metropolitan area.
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I-75 at Nobility.
I-75 near Atlanta Airport.
Interstate 75 in Florida comes from Tampa and crosses the Georgia border at Lake Park. I-75 then follows a 250-kilometer stretch north to the town of Macon. This route is fully equipped with 2×3 lanes and passes several small regional towns, the most important of which are Valdosta, Tifton and Cordele. On this stretch, I-75 passes through a fairly flat area with a lot of forest and is therefore somewhat of a monotonous route. I-75 intersects many east-west US Highways on this stretch that lead to other regional towns in southern Georgia. The most important are US 84, US 82 and US 280.
Near the city of Macon, I-75 runs through downtown while Interstate 475 forms the bypass to Atlanta. I-75 runs 2×3 lanes through Macon and intersects with Interstate 16 to Savannah. North of Macon, I-75 and I-475 converge again. This is followed by a 130 kilometer long route to Atlanta. This section also has 2×3 lanes and leads through heavily wooded area.
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The southernmost major suburb of Atlanta is McDonough. From here, I-75 has an interchangeable lane in the middle. At Stockbridge, Interstate 675 branches off to the east side of Atlanta, while 2×4 lane I-75 passes through the Atlanta airport. The airport also crosses Interstate 285, which forms the Atlanta ring road. Next, I-75 passes through the city of Atlanta, largely forming the Downtown Connector, a north-south route where I-75 converges with Interstate 85. This is one of the largest 2×7 lane highways in the United States through Atlanta.
Interstate 20 is crossed at the south end of Downtown Atlanta. The passage along downtown Atlanta is sunken, with numerous skyscrapers dominating the skyline around I-75. North of downtown, I-75 and I-85 split again. I-75 then has 2×5 lanes until the second interchange with I-285. This is followed by one of the widest carriageways in the United States, with partly 8 lanes side by side in one direction. Parallel to I-75 is a toll interchange on flyovers through the large suburb of Marietta. Interstate 575 splits off at the Kennesaw suburb, then I-75 has 2×3 lanes with a switch lane until the Acworth suburb.
North of Acworth, the built-up area thins, following a 75-mile stretch through the more hilly northwest Georgia to the Tennessee border at Chattanooga. Here I-75 passes the larger regional towns of Cartersville and Dalton. I-75 continues to have 2×3 lanes here, too, and runs through mostly wooded areas. Between Dalton and Chattanooga the view is more hilly. After Ringgold, the border with Tennessee follows, after which Interstate 75 in Tennessee continues through Chattanooga and towards Knoxville.
The highway is signposted as I-75. The Georgia Department of Transportation (GDOT) has also assigned the administrative number SR-401 to the route. This is not signposted and is usually only used in technical documents.