SR 3 CONN @ SR 120 ALT - GRTA

complete

This project will modify the interchange of SR 120/Roswell Road and SR 120 Alternate (formerly SR 120 Loop) in Cobb County. This project is located in the City of Marietta. The proposed project will begin at SR 120 (formerly SR 120 Loop) milepoint 2.55 and extend approximately 0.75 miles to SR 120 Alternate milepoint 1.80. This project stems from the installation of a two-lane loop ramp entrance from SR 120 onto Westbound/Southbound 120 Loop, towards I-75. The proposed ramps will be one to four lane sections with 12 to 15-foot travel lanes, 6-foot inside shoulders (4-foot paved, 2-foot grassed), 8-foot outside shoulders (6-foot paved, 2-foot grassed) and side ditches. There is a new 210' X 43.25' bridge structure proposed for the 2-lane loop over SR 120/Roswell Road. This project will improve operation and reduce congestion at the interchange. Roswell Road will be widened east from this project under another GDOT Project (PI# 721310-).