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Phase I Archaeological Survey of SR 10/US 78 and SR 124 Intersection Improvements

Report Number
4908
Year of Publication
2009
Abstract

The proposed project is a two-phase project to improve the intersection of SR 10/US 78 and SR 124 in Snellville, Georgia. Phase 1 would construct a two-legged continuous flow intersection (CFI) at SR 10/US 78 and SR 124. The Phase 1 CFI would provide dual left-turn lanes offset from the through lanes on the east and west legs of SR 10/US 78 so that left-turn movements could occur at the same time through movements occur. Also, a free flow right-turn lane would be provided for southbound SR 124 traffic to travel west on SR 10/ US 78. To protect the free flow right and CFI operation, limited access would be needed along the north side of SR 10/US 78 for approximately 1300 feet west of SR 124, and approximately 400 feet on the south side of SR 10/US 78 east of SR 124. On SR 124, limited access will be acquired for approximately 120 feet on the east side south of SR 10/US 78. To improve the intersection efficiency, the SR 124 northbound left-turn lane onto SR 10/US 78 would be removed and relocated via signage to Henry Clower Boulevard. Pate Street would be converted to a cul-de-sac and the driveway on SR 10/US 78 would be closed. The CFI would have concrete and landscaped medians on the west. A 16-foot urban shoulder with sidewalk would be used throughout the project limits. Pedestrian accessibility would be provided via crosswalks and pedestrian signals at the SR 10/US 78 and SR 124 intersection. The project termini on SR 10/US 78 for Phase 1 would be Knollwood Drive west of SR 124 and Henry Clower Blvd east of SR 124. The termini on SR 124 would be approximately 1000 feet north and south of the intersection with SR 10/US 78. Phase 2 of the proposed project would construct an eastbound bypass on Henry Clower Boulevard. The proposed project would add a dual right-turn lane for SR 10/ US 78 eastbound traffic onto Henry Clower Boulevard. Pedestrian access would be provided via sidewalks and a signalized crossing on the eastbound bypass approximately 300 feet south of SR 10/US 78. At Henry Clower and SR 124, a right-turn lane would be added for eastbound traffic to turn south on SR 124, and a concrete median would be added on Henry Clower Boulevard west of SR 124. Concrete islands would be added at the SR 124 and Henry Clower Boulevard intersection to provide pedestrian refuge. Dual right-turn lanes would be added for northbound traffic on Henry Clower Boulevard to turn east onto SR 10/US 78, and pedestrian access would be provided via crosswalks. A 16-foot urban shoulder with sidewalk would be used throughout the project limits. The project termini for Phase 2 would include two segments on Henry Clower Boulevard. The first segment would be SR 10/US 78 to the north and SR 124 to the south. The second segment would be from Wesley Way to the south to SR 10/US 78 to the north.