Stranded on I-75 in Atlanta? Here's What to Do

I-75 Through Atlanta: What Makes It Different

Interstate 75 enters the Atlanta metro from Chattanooga in the north through Marietta and Cobb County, then merges with I-85 to form the Downtown Connector — one of the most congested interstate segments in the United States — before splitting again south of downtown and continuing to Macon. The Atlanta metro section of I-75 runs approximately 35 miles through radically different traffic environments: suburban Cobb County with reasonable shoulders, the high-speed managed lanes of I-75 north, the nearly shoulder-free Downtown Connector, and the southern Clayton County segment near the airport.

Breaking down on I-75 near downtown Atlanta — particularly on the elevated Downtown Connector section — is among the most dangerous breakdown scenarios in the metro. Traffic regularly moves at 65–75 mph up to the point of sudden congestion, and the Connector's narrow shoulders (or complete absence of shoulder in some sections) leave virtually no safe refuge for a disabled vehicle. Knowing what to do before it happens can be the difference between a stressful but safe situation and a serious secondary collision.

What to Do Immediately on I-75

1. Coast right — don't brake hard. Ease your foot off the accelerator and steer gradually to the right shoulder without sharp braking. Sudden deceleration on I-75 is a rear-end collision risk.
2. Activate hazard lights. Do this the instant you realize something is wrong — before you pick up the phone, before you check the mirrors. Every second of warning matters at highway speeds.
3. Get as far right as possible. On sections with a shoulder, get your entire vehicle off the travel lane. If you cannot fully clear the travel lane, stop and call 911 before anything else.
4. Stay buckled inside. On I-75, inside the car with seatbelt on is safer than standing on the shoulder in almost every scenario. If you must exit, do so from the passenger side away from traffic and stand behind a guard rail if one exists.
5. Call 911 if in danger. If you are blocking traffic, if anyone is injured, or if you are in a high-speed no-shoulder section like the Downtown Connector, call 911 before calling a towing company.
6. Call for towing. Give the dispatcher your mile marker or last exit number, your direction (northbound or southbound), and your vehicle description. Note whether you need a tow or roadside assistance only.

I-75 Segment Guide: What to Expect by Location

I-75 North — Marietta / Cobb County (Exits 261–237)

The northernmost Atlanta metro section of I-75 runs through Cobb County from the I-285 interchange near the Big Chicken south toward the Smyrna exits. This segment typically has reasonable shoulder space and is heavily patrolled by Cobb County police. HERO units operate here during peak hours. This is the least dangerous I-75 breakdown zone in the metro.

I-75 / I-85 Downtown Connector (Exits 237–246)

Where I-75 and I-85 merge into a single interstate through downtown Atlanta, shoulders range from minimal to nonexistent in some elevated sections. Traffic densities here are among the highest in the Southeast. Express lanes run parallel to general purpose lanes. A breakdown here should be treated as an emergency — call 911, stay in the vehicle, and wait for Georgia State Patrol or GDOT HERO.

I-75 South — Downtown to I-285 (Exits 246–228)

South of the downtown split, I-75 regains reasonable shoulder space through the Lakewood/East Point area. HERO patrols this section during peak hours. Response times for commercial towing in this zone are typically 30–45 minutes.

HERO Unit Coverage on I-75

GDOT's HERO trucks patrol I-75 from Cobb County through the Downtown Connector and south through Clayton County. During peak hours (approximately 6–10 AM and 3–7 PM on weekdays), HERO response on I-75 can be quite fast — often under 20 minutes. Outside those windows, HERO coverage is lighter. Call 511 to reach GDOT's traveler information system and request HERO assistance. If you can see a HERO truck, activate hazard lights and wave them down.