BART’s 34.5kV cables were originally installed underground which caused setbacks for maintenance. JMA provided the civil design to move these cables into the cable trough, improving maintenance access and procedures. JMA prepared the civil grading and routing of the 34.5kV cable replacement troughs for A, R & C lines and solved complex problems for the at-grade segments consisting of the 18,000+ foot (A-line), 7,000+ foot (R-line), and 13,500 + foot (C-line), which included: A & R Lines: JMA managed the preparation of key plans, civil cross sections, civil details, specifications, quantities, and a drainage memorandum in association with the at-grade cable alignment for 3.7 and 1.5 miles of BART ROW, respectively. Traffic control plans were also provided for the project sites at overhead structures. C-Line: JMA led the preparation of 34.5 kV trough alignment and drainage, site grading, and drainage to support the installation of new equipment, and preparation of traffic control plans for 3.0 miles of BART ROW.
