I-75 (GA)

Interstate 75
Route information
Maintained by GDOT
Length:	355.11 mi (571.49 km)
Existed:	1963 – present
Major junctions
South end:	I-75 at Florida state line
	I‑475 near Macon I‑16 in Macon I‑475 near Bolingbroke I‑675 in I‑285 near Forest Park I‑85 in Atlanta I‑20 in Atlanta I‑285 near Smyrna I‑575 / SR 5 near Marietta
North end:	I-75 at Tennessee state line
Location
Counties:	Lowndes, Cook, Tift, Turner, Crisp, Dooly, Houston, Peach, Crawford, Bibb, Monroe, Lamar, Butts, Spalding, Henry, Clayton, Fulton, Cobb, Cherokee, Bartow, Gordon, Whitfield, Catoosa
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Georgia State Routes Interstate U.S. State ← SR 74 SR 75 → ← SR 400 SR 401 SR 402 →

Interstate 75 (I-75) in the U.S. state of Georgia runs north–south along the U.S. Route 41 (US 41) corridor on the western side of the state, passing through the cities of Valdosta, Macon, and Atlanta. It is also designated—but not signed—as State Route 401 (SR 401). In downtown Atlanta, I-75 joins with I-85 as the Downtown Connector.

I-75 is the longest Interstate Highway within Georgia. It enters near Valdosta, and it continues northward through the towns of Tifton and Cordele until it reaches the Macon area, where it intersects with I-16 eastbound towards Savannah. For northbound traffic wishing to avoid potential congestion in Macon, I-475 provides a relatively straight bypass west of that city and I-75's route.

After Macon it passes the small town of Forsyth. The freeway reaches no major junctions again until in the Atlanta metropolitan area. The first metropolitan freeway met is I-675, then followed by the Atlanta "Perimeter" bypass, I-285. It crosses inside the Perimeter and heads northeast several miles towards the Atlanta city center. I-75 then runs concurrently with I-85 due north over the Downtown Connector through the central business district of Atlanta. After the two Interstates split, I-75 makes a beeline northwest, crossing outside the I-285 Perimeter and heading towards the major suburban city of Marietta. This section of I-75 just north of I-285 has 15 through lanes, making it the widest roadway anywhere in the Interstate Highway System. North of Marietta, the final major junction in the Atlanta metropolitan area is the I-575 spur. I-75 then traverses the hilly northern Georgia terrain as it travels towards Chattanooga, Tennessee.

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Wikipedia