GDOT | Widening of State Route 9 - Alpharetta, GA

This Georgia DOT programmed project consisted of the widening and safety and operational improvements of SR 9 from Upper Hembree Road to Windward Parkway including the stretch of SR 9 (Main Street), through downtown Alpharetta. In addition to the widening, the project also included reconfiguration of side roads, pedestrian improvements, streetscape improvements and signal upgrades.
The work is divided into two projects; one begins at Upper Hembree Road and continues to Academy Street; the other stretches from Academy Street to Windward Parkway. SR 9 is a non-uniform arterial, currently having several different sections along the 3.8-mile corridor. The proposed improvements will generally consist of a four-lane section with 17-foot raised median. The proposed section will require several design exceptions to minimize impacts to various historical and sensitive properties throughout the core downtown area.
The project also included roadway and streetscaping improvements to the downtown corridor to serve as a gateway to downtown Alpharetta. Abundant stores and restaurants make this area a popular corridor for pedestrians. While the existing roadway is a 4-lane undivided roadway with minimal sidewalks, the proposed roadway includes a raised landscaped median, 8-foot wide sidewalks with brick accents, hardscaping and landscaping along the shoulders, pedestrian lighting, decorative traffic signal mast arms, as well as two Pedestrian Hybrid Beacon (HAWK) mid-block crossings.
The project required an extensive stakeholder and public involvement coordination effort to build a consensus of the proposed improvements. This included coordination with numerous past and future design efforts, including an LCI initiative as well as a proposed downtown redevelopment plan.