Addendum to Phase I Archaeological Survey of SR 14/US 29 Bridge Replacement at CSX, Fulton County, Georgia

The Georgia Department of Transportation (GDOT), Pl No. 0013809, proposes to replace the existing bridge on State Route (SR) 14/United States Highway (US) 29 over CSX #63861 0Y between Mallory Road and Welcome All Road, (Structure ID 121-0042-0), 2.60 miles (mi) (4.18 kilometers [km]) northeast of Union City in Fulton County, Georgia. The existing conditions on the bridge consist of four 12-foot (ft) (3.66 meters [m]) lanes with urban shoulders on the east side of SR 14 and rural shoulders on the west side of SR 14. A two-way left-turn lane is present, however, the roadway tapers down to four thru lanes as SR 14 crosses the existing bridge. The proposed bridge would consist of six lanes (two travel lanes in each direction, a two way left turn lane, and a southbound right turn lane) with gutters and sidewalks on both sides. Existing right-of-way (ROW) is approximately 60 - 76.2 m (200- 250 ft). Proposed ROW would be approximately 77.7 - 100.6 m (255 - 330 ft).

The project design team at T.Y. Lin, International Group provided Edwards-Pitman, Inc. (EP) with an Environmental Survey Boundary (ESB) for the proposed bridge replacement. The project was originally surveyed by EP in 2018 (Cook 2018) using design plans to construct an Area of Potential Effect (APE) and a 30.5 m (100 ft) expanded survey corridor (ESC). Since the original survey, concept design has changed and the ESB provided to EP extends beyond the previous survey coverage of Cook (2018). Therefore, the addendum survey area is only those portions of the ESB that extend beyond the original survey limits of Cook (2018). The ESB, running southwest to northeast along SR 14, measures approximately 0.72 (km) (0.45 mi) long and ranges from 64.91 to 88.80 (m) (212.96 to 291.34 ft) wide. The ESB was designed specifically to encompass all existing ROW, proposed ROW, temporary easements, permanent easements, and areas of possible/foreseeable ground disturbance. When the design is complete, the project's APE will likely be smaller than the ESB shown.