I-74 highlighted in red | |
Route information | |
Length | 491.74 mi[1] (791.38 km) As of January 27, 2022 |
NHS | Entire route |
Major junctions | |
West end | ![]() |
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East end | ![]() ![]() |
Location | |
Country | United States |
States | Iowa, Illinois, Indiana, Ohio, North Carolina |
Highway system | |
Interstate 74 is an Interstate Highway in the United States. The main part of it goes from Davenport, Iowa east to Cincinnati, Ohio and will be extended to South Carolina. There are three parts of Interstate 74 that are in North Carolina, with no part being connected. The highway will not be continuous because the southeastern part will only be built in North and South Carolina. Interstate 74 was 428.81 miles (690.10 km) long as of 2023.[1]