To improve rail operations and freight congestion south of Columbia, SC, the South Carolina Department of Transportation selected STV to provide engineering and conceptual design for a corridor separation program for rail corridors along Assembly Street in downtown Columbia.

Following a rail and road traffic analyses and environmental review, STV recommended to relocate rails, eliminate crossings, and realign tracks for improved motorist and pedestrian safety. These recommendations are undergoing environmental review, including NEPA documentation and conceptual engineering through aerial mapping, environmental assessment, and geotechnical services. The project also involved a relocation report and studies on traffic, cultural resources, and noise and vibration effects on surrounding areas and structures.