Complete replacement of existing electrical distribution system (34.5kV switchgear, 13.8kV switchgear, 480v switchgear, panelboards, transformer), replacement of traction power equipment including stinger systems, stinger alarm systems and shore power assemblies, fire alarm system, public address system, interior lighting and exterior lighting at three fully occupied rail yards that operate 24 hours a day (New Carrollton, Brentwood and Alexandria Rail Yards).