Cobb County Government


As Cobb County continues to grow in population, educational opportunities, professional prospects and recreational options, it is vitally important that our roadways develop and expand to support that progress. One of our fastest-growing areas, Cumberland, will soon serve as an even greater hub for sports, music and culinary enthusiasts with the addition of SunTrust Park and The Battery in 2017. However, plans for facilitating increased travel in Cobb have been in the works for years—a decade or more in some cases—long before the county became the new home for the Braves.

One such long-planned project is the Windy Hill – Terrell Mill Connector, a proposed extension of Bentley Road. The new four-lane road will begin at the intersection of Spectrum Circle/Interstate North Parkway and Windy Hill Road and connect at the current Bentley Road and Terrell Mill Road intersection. This project will serve as a reliever for Powers Ferry Road by absorbing traffic normally traveling that route to and from Windy Hill Road and Terrell Mill Road. With the addition of a landscaped median, multi-use trail, sidewalk and lighting, the road will be an excellent new travel option that connects to the Bob Callan Trail System and provides a congestion-alleviating alternative access route to the future I-75 Northwest Corridor Express Lanes.


Concept Approved by Board of Commissioners - Feb. 28, 2017

The concept map for the Windy Hill - Terrell Mill Connector was presented at the Board of Commissioners Work Session Monday, Feb. 27, 2017, at 1:30 p.m. The Board approved the concept at its regular meeting Tuesday, Feb. 28, at 7 p.m.


The Windy Hill Road - Terrell Mill Road Connector project is a proposed 0.80-mile limited-access, four-lane thoroughfare connecting Windy Hill Road to Terrell Mill Road. This road will begin at the existing intersection of Spectrum Circle/Interstate North Parkway and Windy Hill Road, and proceed north along a new location alignment to the existing intersection of Bentley Road and Terrell Mill Road.


The public information open house took place Nov. 15, 2016, from 5 to 7 p.m. at Brumby Elementary School in Marietta. Citizens were offered the opportunity to learn more about the Windy Hill - Terrell Mill Connector project, ask questions and provide feedback. There was no formal presentation. A court reporter was on-site to record comments from the public.

Written statements concerning this project were accepted until Nov. 29, 2016. 

Environmental Studies

Air Quality Report (April 2017)
Cultural Resources
Archaeology (currently under review)
Ecology Report (June 2017)
Aquatics Survey
Terrestrial Plant Survey
Stream and Wetland Delineation
Regional Permit for Stream Impacts (2018)