Bill Grimes/AJC Staff

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In 1972, workmen install warning signs on U.S. 41 for motorists traveling on this connecting link between two unfinished pieces of I-75 through Cobb County. The signs are in reaction to the high number of accidents and deaths on this highway.

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Flashback photos: I-75 through the years, 1957-1999

Flashback photos: I-75 through the years, 1957-1999

Flashback photos: I-85 through the years, 1951-1997

Flashback photos: 30 years ago in Georgia, 1987, part two

Flashback photos: 40 years ago, Georgia in 1977

Flashback photos: 50 years ago, Georgia in 1967 (part two)

Flashback Photos: Marietta Street, westward from the heart of Atlanta (1871-1960s)

Flashback Photos: The North Georgia mountains, 1930s-1989