Addendum to a Phase I Archaeological Survey of the Proposed Intersection Realignment of SR 9/US 19/Roswell Road at Glenridge Drive, Fulton County, Georgia

As documented in a previous Georgia Department of Transportation (GDOT) Archaeological Short Form for Negative Findings (Koch 2015) and the Finding of No Historic Properties Affected, the proposed project would consist of the realignment of the existing intersection of Glen ridge Drive with State Route (SR) 9/US 19/Roswell Road, which currently consists of a three-legged intersection with a substandard skew (Figures 1 and 2). The realigned intersection would create a four-legged intersection by aligning the roadways with a condominium complex driveway, which is currently located 60 feet to the north. The project would improve the intersection angle, reduce the potential for conflicts with the condominium complex driveway, and provide improved left-turn lanes for southbound and northbound traffic. Existing right-of way (ROW) is 70 feet. Minor amounts of ROW would be required at various locations along the corridor. A 100-foot-wide expanded survey corridor (ESC) was also surveyed as part of the original 2015 survey. The GDOT Archaeological Short Form for Negative Findings (Koch 2015) was approved by GDOT on October 27, 2015.

Since Koch (2015) and the Finding of No Historic Properties Affected, the project has undergone some minor design refinements. The proposed ROW would vary between 70 and 100 feet. Small changes to

easements have occurred in various locations. The project length has also increased by approximately 40 feet to the north within existing ROW on SR 9/US 19/Roswell Road. The proposed project on SR 9/US 19/Roswell Road begins approximately 190 feet north of the Stewart Drive intersection and now extends

northward to approximately 130 feet south of the Broad Street Northeast intersection for a total distance of approximately 1,040 feet. The proposed project on Glen ridge Drive begins at its skewed intersection with SR 9/US 19/Roswell Road and extends northeast for a distance of approximately 1,240 feet.

                Most design changes fall within area previously covered by archaeological survey. However, the project limits have been extended approximately 40 feet to the north on SR 9/US 19/Roswell Road but is confined to existing ROW of approximately 70 feet wide. For the purposes of this document, the addendum APE is considered to be the 70 feet wide by 40 feet long extension, which comprises approximately 0.06 acre (Figure 3). A 1 00-foot-wide buffer from the edge of the addendum APE was also surveyed and is known as the expanded survey corridor (ESC). For the purposes of this report, the addendum APE and ESC are collectively known as the project survey area, which encompasses approximately 0.89 acre.