Replacement of the electrical feeders serving Old Hillside Housing at Joint Base Lewis-McChord, converting an aging overhead system to underground duct bank. Cannon installed a new underground duct bank carrying 24,800 feet of 15kV MV-105 conductor along with new switch vaults, then set the vaults and connected the system to new transformers and switches. The complete system was tested before cutover, and every existing overhead line and pole was removed once the underground feed carried the housing area.

Services Employed:

• New underground electrical duct bank installed
• 24,800 feet of 15kV MV-105 conductor installed
• New switch vaults set and grounded
• System connected to new transformers and switches
• Comprehensive system testing before cutover
• All existing overhead lines removed
• All existing poles removed
• Work performed on an active DoD installation