In December 2012, January 2013, April 2015, and June of 2015, AECOM Corporation conducted a Phase I archaeological survey of the proposed 1.3-mile South Atlanta Street (State Route [SR] 9) “Historic Gateway” corridor improvements, which is associated with the GDOT project STP00-9496-00(001), P.I. No. 721010, and HP No. 120529-003. This project is located within the City of Roswell, Georgia (Figures 1-3).
The survey area is located within the northern portion of Fulton County. More specifically, the proposed SR 9 road APE is bordered to the north and east by the CRNRA and to the west and south by a residential subdivision and the Chattahoochee River respectively. Since a portion of the SR 9 project corridor is located within the boundaries of the NPS, permits to conduct archaeological survey work were obtained as a requirement of the Archaeological Resources Protection Act (ARPA) (16 USC 470aa-mm) and the Antiquities Act of 1906 (16USC 431-433). The permit number for this undertaking is CHAT 2015-02.
The SR 9 portion of the project will remove the reversible lanes along Atlanta Street (SR 9), replace the SR 9 bridge over the Chattahoochee River, and replace the Riverside Road bridge across Vickery Creek and install sections of retaining wall along the improved corridor. The total length of the project is approximately 1.3 miles. The project is located entirely within the City limits of Roswell, Georgia. The current design speed of 35 mph will be maintained throughout the SR 9 corridor. The current three lane reversible roadway along Atlanta Street will be improved to a divided four-lane highway between Riverside Road/Azalea Drive and Warm Springs Circle with a median. North of Warm Springs Circle, the roadway transitions to a narrow, continuous median between dual-lane roundabouts at Jones Drive and Chattahoochee/King Street that facilitate left turns to/from driveways along the corridor through the historic district portion of the corridor.
The project will also construct retaining wall sections along portions of the SR 9 corridor. Retaining wall sections will be constructed along the limits of proposed and existing ROW. The ROW varies from 50 to 100 feet and the proposed project has some, but limited ROW impacts along the corridor. The proposed project will require up to 30 feet of additional ROW along SR 9 frontage.
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