Trickum Road is closed near Shallowford Road through Oct. 20; Lower Roswell Road work runs to Nov. 19. Cobb DOT: 770-528-1600. Georgia 511 for state roads.
Last checked Oct. 5, 2026. This page is refreshed every week. Project details come from Cobb DOT’s projects under construction page, last updated by the department with its August work forecast, and the county’s own announcements, each linked below.
East Cobb’s roads are run by two agencies. Cobb County’s Department of Transportation looks after county roads such as Johnson Ferry, Lower Roswell, Sandy Plains, Shallowford and Trickum. The Georgia Department of Transportation (GDOT) runs the interstates and state routes and posts its lane closures on Georgia 511.
Who to call
- County roads, signals, potholes: Cobb County DOT, 770-528-1600, cobbdot@cobbcounty.gov, 1890 County Services Parkway, Marietta
- Live county closures: Cobb DOT lane and road closure dashboard (cobbcommute.org)
- Interstates and state routes: Georgia 511, or dial 511
- Paving schedule: Cobb resurfacing map
Closed now: Trickum Road
Trickum Road is closed to through traffic between Jamerson Road and Shallowford Road through Tuesday, Oct. 20, according to Cobb County. The closure began Sept. 21 so crews can replace a damaged cross drain, catch basin lids and the shoulder, build a new outlet headwall and restore the road. The exact closure point is between the north and south ends of Easy Circle, near 3877 to 3883 Trickum Road. Use Shallowford Road and Jamerson Road around it.
County projects under construction in and near East Cobb
These Cobb DOT projects are in commission districts 2 and 3, which cover East Cobb. Completion dates are the department’s scheduled dates and can move with weather.
| Project | What is being built | Scheduled to finish |
|---|---|---|
| Lower Roswell Road, Woodlawn Drive to Davidson Road (E6020) | Intersection work, raised medians and a multi-use trail | Nov. 19, 2026 |
| Canton Road at Piedmont Road (B2312) | Right-turn lane from northbound Canton Road onto eastbound Piedmont Road, signal and pedestrian work | Nov. 9, 2026 |
| Holly Springs Road at Davis Road (B2314) | Roundabout modifications | Jan. 4, 2027 |
| Powers Ferry Road transit ADA work (B2754) | New curb ramps, sidewalk panels, curb and gutter for bus riders | March 15, 2027 |
| Holly Springs Road at Sandy Plains Road (B2313) | Realigned turn lanes, markings and signal changes | May 12, 2027 |
| Shallowford Road at Gordy Parkway West (B2306) | Realigned turn lanes on northbound Gordy Parkway, signal changes | Sept. 27, 2026 (final markings and sod) |
Lower Roswell Road is the biggest of these. Cobb DOT says the raised median between Johnson Ferry Road and Davidson Road is meant to cut left-turn conflicts and angle crashes. Expect lane closures and delays 9 a.m. to 4 p.m. on weekdays. The county’s 2024 fact sheet (PDF) has the layout. Project manager: Karyn Matthews, karyn.matthews@cobbcounty.gov.
Coming next: Johnson Ferry Road at Shallowford Road
The Board of Commissioners’ Sept. 22 agenda carried two items for the Johnson Ferry Road at Shallowford Road intersection (county project B2437, state project 0020001): an agreement with GDOT and a design-build contract with CMES Inc. of up to $2,317,038, the lowest of three proposals. According to the Sept. 22 agenda packet:
- Westbound Shallowford Road will get two through lanes and two left-turn lanes.
- Eastbound Shallowford Road past the intersection will narrow to one lane to make room.
- Raised medians, a rebuilt signal and pedestrian improvements are included.
- GDOT will pay eligible costs up to $1,875,508.80, from federal money Congress directed to the project in December 2022. The county’s share, from the 2022 SPLOST, is estimated at no more than $468,877.20.
Georgia Power utility relocation is still to come to the board. Construction dates have not been published; this page will add them when Cobb DOT posts them.
State roads and the interstates
GDOT publishes incidents, construction and traffic cameras for the interstates and state routes on the Georgia 511 map. Cobb also runs its own live traffic cameras.
How to find out about a closure first
- Check the Cobb DOT closure dashboard before you leave; it carries the county’s weekly travel advisory.
- Sign up for county email updates through Cobb’s newsletter page.
- Dial 511 from the road for state routes.
What this means for you
- Avoid Trickum Road between Jamerson and Shallowford roads until Oct. 20.
- Allow extra time on Lower Roswell Road on weekday middays until late November.
- Johnson Ferry at Shallowford is next. Work there will change how westbound drivers line up at the light.
More: getting around East Cobb and who to call in Cobb County government.
Frequently asked questions
Is Trickum Road closed in East Cobb?
Yes. Cobb DOT closed Trickum Road to through traffic between Jamerson Road and Shallowford Road on Sept. 21 for a pipe and roadway repair, and the closure is scheduled to last through Tuesday, Oct. 20.
When will the Lower Roswell Road construction be finished?
Cobb DOT says the Lower Roswell Road project between Woodlawn Drive and Davidson Road is scheduled to be completed by Nov. 19, 2026. Lane closures are possible 9 a.m. to 4 p.m. on weekdays.
What is planned for Johnson Ferry Road at Shallowford Road?
A design-build project to rebuild the Shallowford Road approaches with two through lanes and two left-turn lanes westbound, raised medians, signal and pedestrian improvements. GDOT will fund up to $1,875,508.80 of it.
Where can I see Cobb County road closures?
Cobb DOT’s live lane and road closure dashboard at cobbcommute.org lists closures and travel advisories. For interstates and state routes, use Georgia 511 online or dial 511.
Who do I call about a county road problem in East Cobb?
Cobb County Department of Transportation, 770-528-1600 or cobbdot@cobbcounty.gov. Report state highway problems through Georgia 511.
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