Georgia · Bibb County · Road Closure
I-75 South Lane Closure in Macon, GA: Emergency Roadwork at Mile Marker 166 in Bibb County
The left lane of Interstate 75 southbound is closed between mile markers 166 and 165 in Macon while state crews repair an asphalt shoulder separation. The Bibb County Sheriff’s Office says the closure runs until Wednesday morning, and traffic was backed up past the Pierce Avenue exit.
Key facts
- What
- The left lane of I-75 southbound closed for emergency roadwork
- Where
- I-75 southbound between mile markers 166 and 165, parallel to Riverside Drive in Macon
- Cause
- Crews are addressing an “asphalt shoulder separation from the roadway”
- Direction
- Southbound. No northbound restriction has been announced
- How long
- Until Wednesday morning, Aug. 19, with updates promised if the work runs long
- Traffic
- Backed up past the Pierce Avenue exit on I-75 southbound, per 511GA at the time of the advisory
- Crews
- Georgia Department of Transportation
- Announced by
- Bibb County Sheriff’s Office, Tuesday afternoon
- Detour
- None announced
- What is closed on I-75 South in Macon?
- Where exactly is the lane closure?
- What is an asphalt shoulder separation?
- How long will the lane closure last?
- How far is traffic backed up on I-75 South?
- Is this the same as the I-75 closures in Monroe County?
- What we don’t know yet
- Frequently asked questions
What is closed on I-75 South in Macon?
One lane of Interstate 75 southbound in Macon is shut while state crews repair the edge of the road, and southbound traffic behind it is crawling.
The Bibb County Sheriff’s Office sent an advisory to drivers about the left lane closure on Tuesday afternoon, WGXA reported. In it, the sheriff’s office wrote that Georgia Department of Transportation crews are working to address an “asphalt shoulder separation from the roadway.”
This is emergency roadwork rather than a scheduled job. Only the left lane is described as closed, and no full closure of the interstate has been announced.
Where exactly is the lane closure?
The closure sits on I-75 southbound between mile markers 166 and 165, on the stretch that runs parallel to Riverside Drive in Macon, according to the sheriff’s office advisory as reported by WGXA.
The two markers are a mile apart, placing the work zone within a single mile of interstate in Bibb County.
What the advisory describes is a mainline lane. No exit, ramp or interchange has been announced as closed.
What is an asphalt shoulder separation?
The phrase is the sheriff’s office’s own, quoted by WGXA: crews are working to address an “asphalt shoulder separation from the roadway.”
GDOT has not said what caused the separation, how long the affected section is, or how it was found. The sheriff’s office advisory gave the location and the closure, not the engineering behind it.
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How long will the lane closure last?
The sheriff’s office said the lane closure will last until Wednesday morning, and that GDOT will provide updates should the work take longer than expected, WGXA reported.
The advisory went out on a Tuesday afternoon, and Tuesday was Aug. 18, 2026, so the Wednesday morning it points to is Aug. 19. No clock hour was attached to it — there is no published time at which the left lane reopens.
Attention: that end point is the sheriff’s estimate as of Tuesday afternoon, and the same advisory allowed for the work running longer.
How far is traffic backed up on I-75 South?
As of the sheriff’s advisory, 511GA showed traffic on I-75 southbound backed up past the Pierce Avenue exit, WGXA reported.
That figure is a snapshot from the moment the advisory was issued, not a running measurement. No delay time in minutes has been published for the closure, and no traffic count for the stretch has been released.
511GA is the Georgia Department of Transportation’s traffic information service, at 511ga.org.
Is this the same as the I-75 closures in Monroe County?
No. These are two different closures, in two different counties about twenty miles apart, and they should not be read as one event.
The Macon closure is unplanned emergency work in Bibb County that started Tuesday and is due to clear by Wednesday morning. The Monroe County lane closures are a scheduled GDOT job near exits 187 through 189, taking two of four southbound lanes across the weekends of Aug. 21 and Aug. 28 for concrete and spalling repairs.
| Macon (Bibb County) | Monroe County | |
|---|---|---|
| Type | Emergency roadwork | Planned repairs |
| Location | I-75 SB, mile markers 166–165 | I-75 SB, near exits 187–189 |
| Lanes out | Left lane | Two of four southbound |
| Dates | Tuesday, Aug. 18 to Wednesday morning, Aug. 19 | Weekends of Aug. 21 and Aug. 28 |
| Reason given | Asphalt shoulder separation | Concrete and spalling repairs |
Both involve GDOT crews and both are southbound. Nothing published connects the two jobs to each other.
What we don’t know yet
- The hour on Wednesday morning at which the left lane is due to reopen.
- Why the left lane is the one taken out of service, when the defect described is at the shoulder.
- What caused the asphalt to separate from the roadway, and how the damage was discovered.
- How long the damaged section is, and whether the repair covers the full mile between the two markers.
- What time on Tuesday the lane actually closed. The advisory is described as going out in the afternoon; the closure’s start time was not given.
- How long the backup is now. The Pierce Avenue figure came from 511GA at the time the advisory was issued.
Frequently asked questions
Is I-75 South closed in Macon?
No. One lane is closed — the left lane of I-75 southbound between mile markers 166 and 165. Only the left lane is described as closed, and no full closure of I-75 has been announced.
How long will the I-75 lane closure in Macon last?
Until Wednesday morning. The sheriff's office said the lane closure will last until Wednesday morning, and that GDOT will provide updates should the work take longer than expected, WGXA reported. Tuesday is Aug. 18, 2026, so that Wednesday is Aug. 19. No clock time was given.
Is there a detour around the I-75 closure in Macon?
No detour route has been announced. Only the left lane is described as closed.
Is this the same as the I-75 lane closures in Monroe County?
No. They are two separate closures. The Macon closure is emergency work in Bibb County at mile markers 166 to 165, running until Wednesday morning. The Monroe County closures are planned concrete and spalling repairs near exits 187 through 189, scheduled across the weekends of Aug. 21 and Aug. 28.
Is northbound I-75 affected in Macon?
The advisory describes I-75 southbound. No restriction on the northbound side has been announced.
More Macon and Bibb County reports are collected on our Bibb County page, and Georgia road and accident coverage on the Traffic & Accidents page. An earlier incident on the same interstate in Macon: four hurt in a four-vehicle accident at the Eisenhower Parkway exit.
Sources
- WGXA — “Lane closure along I-75 South in Macon for emergency roadwork causes traffic delays,” by Jordan Stevenson, published 12:31 p.m. ET, Aug. 18, 2026.
- Bibb County Sheriff’s Office — driver advisory issued Tuesday afternoon, Aug. 18, 2026, quoted by WGXA.
- 511 Georgia — the Georgia Department of Transportation’s traffic information service, cited in the advisory for the southbound backup.
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