Sacramento Municipal Utility District

Franklin Substation

Franklin Substation was a complete turnkey, greenfield 230/69kV substation procure-construct project including 15 acres inside the substation fence. The work associated with the project included the following key technical aspects:

  • Over 378 foundations
  • 10 miles of ground grid
  • 55,000 tons of ab, 5,000 CY of yard rock
  • Eight 230kV and four 69kV circuit breakers
  • Two 69kV capacitor banks
  • A total of 500 insulators
  • Twenty-three 230kV and fourteen 69kV switches
  • Paved roads, all associated steel structures, electrical equipment, insulators, bus and all control/protection
  • Over 37 miles of relay/power cables and associated terminations, telecommunications security systems, precast architectural wall system, fencing, gates, access controls, and 5x5x5 CIP cable trench
  • An 8,000 sq. ft., two-story CMU control building with all associated building subsystems

Additionally, Wilson crews achieved rapid installation of structural steel, architectural wall panels and 69kV and 230kV welded bus. To contribute further toward the project’s success, Wilson’s crews and project management personnel provided key construction solutions by coordinating with the project owner to overcome engineering concerns and materials challenges.