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Port of Seattle

Port of Seattle

Terminal 18 Stormwater Utility Upgrades

Through three phases, Elcon provided design to 13 new pump stations throughout Port of Seattle’s South Terminal 18. Elcon provided electrical power distribution design for the new pump stations at the Port of Seattle’s Terminal 18. Elcon designed 15kV duct banks and the 15kV – 480 V substation for the large pump and filter station. Additionally, our engineers performed short circuit, coordination, and arc flash studies of the electrical system.

Owner: Port of Seattle & SSA Marine

Location: Seattle, WA


  • Marine terminal upgrades
  • 13 stormwater pump stations
  • Distribution design, power system studies