Phase I Cultural Resources Survey Butler-Junction City Mining Tract Transmission Line Corridor Addendum Report

In 2018, Brockington and Associates, Inc., conducted a Phase I cultural resources survey for three alternate routes for the proposed Butler-Junction City Mining Tract Transmission Line Corridor. The survey was performed as an act of due diligence for Georgia Power, a Southern Company. The proposed transmission line corridors are located in Talbot County, approximately three miles (4.8 kilometers [km]) southeast of Talbotton, Georgia (Figure I. I). The property is accessed by CR 90 and Baker Mill Road. The proposed transmission line will replace a section of an existing line located east of a rock quarry owned by Highpoint Resources LLC and operated by Martin Marietta.

Alternate I was surveyed the week of June 25, 20 I 8. Alternate I begins at the existing transmission line and loops around the mining property to the west and south and then extends east to tie back into the existing transmission line. The entire Alternate I corridor is approximately two miles (3.2 km) long. However, since 0.36 miles (0.57 km) of the proposed corridor falls within a previously surveyed area, the length of the current survey corridor is 1.66 miles (2.6 km) and the right-of-way (ROW) width is I 00 feet (ft) (30.4 meters [ m]) (see Figure I. I).

Alternate 2 was surveyed the week of August 27, 2018. It is located south of the east-west section of Alternate I and is approximately 3,543.3 ft (1,080 m) long and the ROW width is I 00 ft (30.4 m). Alternate 2 extends 2,755.9 ft (840 m) to the east and then turns north and extends 787.4 ft (240 m) where it ties into Alternate I (see Figure I. I).

Alternate 3 was surveyed the week of September 17, 2018. It is located north of the east-west section of the existing transmission line and is approximately 4,232.3 ft (1,290 m) long and the ROW width is I 00 ft (30.4 m). Alternate 3 extends east 2,755.9 ft (840 m) and then turns south and extends approximately 1,476.3 ft (450 m) where it ties into the existing transmission line (see Figure I.I). The Area of Potential Effect (APE) for this project consists of the proposed transmission line alternate corridors and the project viewshed, which extends approximately 0.25 mile (0.4 km).