Second Addendum to Phase 1 Archaeological Survey of Two Intersection Improvement Locations in North Fulton County, Georgia

Project HPPOO-0000-00(533) consists of intersection improvements at State Route (SR) 140/Arnold Mill Road and County Road (CR) 27/New Providence Road in the City of Milton. The existing intersection of SR 140 and CR 27 is a non-signalized intersection with no turning lanes and an approximate skew angle of 30 degrees. The existing typical section for both SR 140 and CR 27 includes two-lane roads with 12-foot lanes, no curb and gutter, rural shoulders, and existing right-of-way (ROW) of 40 feet. SR 140 has 2-foot paved shoulders and CR 27 does not have paved shoulders. The proposed skew angle of the intersection is 90 degrees. The intersection shifts northwest and left and right turn lanes will be added to both SR 140 and CR 27. A mast arm traffic signal system will be installed at the intersection. Further design improvements include adding curb and gutter, pedestrian crossings, bike lanes and sidewalks on SR 140 and a multiuse trail on the east side of CR 27. The proposed typical section for SR 140 consists of a two-lane urban section with widening for left-turn movements, including 12-foot lanes and 18.5-foot shoulders with a 4-foot on street bike lane, curb-and-gutter, and a 6-foot sidewalk. The proposed typical section for CR 27 consists of a two-lane urban section with widening for turning movements, including 12-foot lanes and 18-foot shoulders with a 10-foot multiuse trail on the east side. Proposed ROW for SR 140 is between 60 and 140 feet and CR 27 is 60 feet. The project is 0.4 mile along SR 140 and 0.06 mile along CR 27. Project HPPOO-0005-00(448) consists of intersection improvements at SR 372/Birmingham Highway and CR 27/Providence Road/New Providence Road in the City of Milton. The existing intersection is a non-signalized 4-way intersection with an approximate skew angle of 25 degrees. The existing typical section for both SR 372 and CR 27 includes two-lane roads with 12-foot lanes, no curb and gutter, and rural shoulders. The existing ROW on SR 372 is 45 to 70 feet and on CR 27 is 60 feet. The intersection will be replaced with a roundabout with right-turn bypass lanes on SR 372. The intersection alignment will be shifted to the north such that the intersecting skew angle with SR 372 is 80 degrees to improve the vertical site distance along SR 372. The proposed typical section for both roadways consists of a two-lane urban section with 12-foot travel lanes, 18-foot shoulders with curb-and-gutter and a 10-foot multiuse trail. Proposed ROW for SR 372 and CR 27 is 80 to 120 feet. The project is 0.40 mile long along SR 372 and 0.45 mile along CR 27.