Cobb County Government
Department of Transportation
The Department of Transportation (DOT) develops, manages, and operates the county's transportation s...

Read more

Report roadway issues on YourGov
YourGOV, a smart phone and web-based work request tool provided by the Cobb County Department of Tra...

Read more

Cumberland Boulevard traffic shift begins Feb. 12
Beginning Monday, Feb. 12, the two westbound lanes of Cumberland Boulevard will shift down to a sing...

Read more

CCDOT featured in Cartegraph "How We Work" series
"Uncover how the Cobb County, GA Department of Transportation streamlines their day-to-day operati...

Read more

Cobb County teaches “Street Smarts” in pedestrian safety video
The Cobb County Department of Transportation (CCDOT) debuted “Pete’s Street Smarts,” an educational ...

Read more

Department of Transportation
Report roadway issues on YourGov
Cumberland Boulevard traffic shift begins Feb. 12
CCDOT featured in Cartegraph "How We Work" series...
Cobb County teaches “Street Smarts” in pedestrian safety...

Project News

Windy Hill Road Projects

Windy Hill Road LogoCobb County DOT is working on five-part major transportation improvement project that will improve safety and mobility along a 1.95-mile section of Windy Hill Road.

Project Overview Project Specifics Construction Photos Events Contact Information Project Downloads

Project Update Delays in the Windy Hill corridor are increasing. 

Expect severe traffic congestion and delays associated with multiple lane closures. Please plan accordingly and seek alternative routes for through travel. Follow Cobb DOT on Facebook and Twitter and check for up-to-the-minute traffic 24/7.

Latest News

Beginning Monday, Jan. 30, 2017, the eastbound travel lanes on Windy Hill Road at the I-75 overpass will shift further right along the south side of the bridge as crews barricade the center of the roadway for construction of walls and sidewalk. The lane shift will be in place until mid-March 2017, after which the lane configuration for eastbound traffic across the I-75 bridge will be two through lanes and one left turn lane to I-75 North. Construction work in the area will take place weekdays from 9 a.m. to 4 p.m.

Read more and view our map of the area.

Beginning Sept. 30, 2016, the ramp from Windy Hill Road eastbound to I-285 westbound will be closed nightly from 9 p.m. to 5 a.m. through Oct. 3, 2016, for work on the Windy Ridge Parkway Bridge project. Drivers looking to take the westbound ramp to I-285 will be directed to I-75 southbound. Message signs, as well as a Cobb County police officer, will be in place to announce the ramp closure and redirect motorists. The ramp from Windy Hill Road to I-75 southbound will remain open.

Read more and view our map of the area.

Beginning Wednesday, Sept. 7, 2016, the right lane for eastbound travel on Windy Hill Road at the I-75 overpass will close indefinitely as the westbound lane on the north side of the bridge reopens. This 24-hour lane closure will cause significant traffic congestion and delays at different times throughout the day. Following this traffic shift, the lane configuration for eastbound traffic across the I-75 bridge will be two through lanes and one left turn lane to I-75 North. Construction work in the area will take place weekdays from 9 a.m. to 4 p.m. Drivers are strongly encouraged to use alternate routes.

Read more and view our map of the area.

After Aug. 22, 2016, motorists traveling along Windy Hill Road will no longer have access to the center turn lane, from U.S. 41/Cobb Parkway to Circle 75 Parkway, while the lane is permanently closed and converted into a raised median. Motorists will be able to make left-hand turns only at signalized intersections.

The lane-to-median conversion along the heavily-traveled, half-mile stretch of road is one of the $48 million traffic and safety improvement projects along the 1.43-mile stretch of Windy Hill Road, from U.S. 41/Cobb Parkway to Powers Ferry Road.

The biggest change for drivers, besides the closure of the center lane, is making controlled, but safe, left-hand turns only at signalized intersections. Left-hand turns, along this section of Windy Hill Road, will be accessible at Windy Hill Village Shopping Center, North Park Place and South Park Place.

Read more and view our map and diagram of the area.


Windy Hill Road constructionUtility relocation will create numerous, periodic lane closures on Windy Hill Road. In general, utility work is continuing throughout the entire corridor.

Construction continues on several retaining walls. Expect lane closures and delays at these retaining wall sites between U.S. 41 and I-75 as well as at Windy Hill Road and Interstate North Parkway.

For specific work dates and times, as well as anticipated traffic affects, please see the Regional Transportation Center weekly travel advisory and construction updates.

(Updated February 2017)

Project Overview

WindyHillProjects webTotal estimated cost for these projects is over $48 M.

Projects E4030, E4020 and D4230 were advertised for construction bids on July 18, 2014. Bids were opened on Sept. 11, 2014.  CMES, Inc. was the low bidder at $15,176,755.02 for projects E4030, E4020 and D4230. Construction began in late October 2014. Construction duration will be 24 months.

The Windy Hill DDI project (Project E4100) was advertised on Oct. 23, 2015 and bids opened Nov. 12, 2015. CW Matthews was the low bidder with a construction bid of $17,722,068. Construction will start by Jan. 11, 2016. Substantial completion (all lanes in their final configuration) is scheduled by March 18, 2017 and final completion scheduled by June 30, 2017. Please note that the bridge over I-75 will be closed to all traffic for two separate weekends in late 2016 or early 2017. Those two closure weekends will be determined jointly between the contractor and Cobb County, after coordination with Public Safety officials and the Georgia Department Of Transportation, based upon other area activities and construction projects. Those two closure weekends will be announced at least four weeks before the closures.
The final project (Project E3030) is scheduled to be let in early 2016, with a construction duration of 14 months.

Project Specifics

Windy Hill West
Project E4030

Estimated Cost:

This existing 5-lane section of roadway has a center left turn lane with a high accident rate.  Traffic crashes in this section have increased as motorists attempt to cut in and across the two way center left turn lane.  This project will add a median and an additional west and east bound lane.  Existing sidewalks will be replaced

Project length: 0.74 miles

Windy Hill East
Project E4020

Estimated Cost:

This 5-lane roadway has a center left turn lane.  This project will add a median and reconfigure the existing 6 lanes into 3 lanes in each direction. 

Project length: 0.17 miles
Windy Hill East End
Project D4230

Estimated Cost:

This project adds a west bound lane only. This lane addition will decrease traffic congestion. The sidewalks on the west bound side will be replaced.

Project length: 0.29 miles
Windy Hill DDI
Project E4100

Estimated Cost:
$20.0 M

Construction of a Diverging Diamond Interchange will decrease traffic congestion and accident rates at the ramp intersections by decreasing the conflict points.  Congestion during construction is expected.  When completed, motorists will no longer be able to turn right onto Interstate North Parkway (west side).

Project length 0.33 miles
Windy Hill Road at U.S. 41
Project E3030

Estimated Cost:
$5.7 M

The intersection of SR3/US 41/Cobb Parkway and Windy Hill Road/CR 1720 has an unacceptable level of service in the peak hours.  Improvements include the addition of dual-left turn lanes on the north and south legs of Cobb Parkway, lengthening the existing dual-lefts and adding a right turn lane on the west leg of Windy Hill  Road, the addition of a third northbound lane on Cobb Parkway.  Additionally, space for future queue jumper lanes will improve service times for transit vehicles at the signal.  All new traffic signal equipment and pedestrian accommodations will also be included.

Project length 0.42 miles


A public meeting on Project E4100 was held on April 7, 2014 at the Cobb Chamber of Commerce, Community Room, 240 Interstate North Parkway, Atlanta, GA 30339. Open House Noticealt

An open house on the construction of the Windy Hill Road Corridor Projects was held on Sept. 16, 2014 from 3 p.m. to 7 p.m. at the Windy Hill Community Center located at 1885 Roswell Street, Smyrna, Georgia 30080.

The groundbreaking event for all five projects was held at 10 a.m. on Oct. 20, 2014 at the Hyatt Regency Suites Atlanta NW on Windy Hill Road. U.S. Senator Johnny Isakson was the featured speaker.

Groundbreaking Photos

The Windy Hill Road construction was the topic of discussion at Cumberland CID's Coffee and Construction event in March 2015. Cobb DOT representatives presented project information and answered attendees' questions during the meeting. The event was hosted by the Atlanta Marriott Northwest at Galleria. Pictures

Contact Information

Cobb County is committed to communicating promptly, honestly and effectively. If you have questions about the Windy Hill Road improvements, please reach out to one of these contacts:
James Hudgins
Project Manager
Ph. 678-575-2136
Kevin Collum
Construction Project Engineer
Ph. 678-358-9033
 David Baggett
Construction Ambassador
Ph. 678-722-1740

Project Downloads alt