Sargent & Lundy

Burnham Taylor Transmission Cable

New 345-kV XLPE transmission cable through downtown Chicago

Chicago, Illinois
Client: Exelon Corporation – ComEd

  • Transmission line engineering and design
  • Substation engineering and design
  • Collection system engineering and design
  • Material and equipment procurement support
  • Construction field services

Sargent & Lundy performed engineering and construction management for the installation of the 345-kV XLPE cable and reconfiguration of the HPFF cable systems between the Taylor Street 345-kV GIS and the 345-kV Garfield Terminal. The project included modifying the overhead connections and the installation of 345-kV series line inductors and breakers at Calumet Substation. The double-circuit transmission line ran from downtown Chicago south on State Street approximately 6.2 miles to Garfield Terminal.

Project Scope:

  • 6.2 miles of double-circuit XLPE transmission cable in downtown Chicago
  • Installation of cable under the Chicago River, crossing of heavy-rail tracks, and under the Stevenson Expressway
  • Modification and installation of GIS and AIS 345-kV terminations, inductors, and circuit breakers
  • Scheduling, construction management, and commissioning support for the four substations and four transmission lines
  • 345-kV XLPE terminations at Garfield Substation

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For more information about our services, please visit our Power Transmission page.

Todd Hanssen

Senior Vice President




Todd brings 25 years of experience in the design of power generation and transmission projects and is currently the director of power transmission construction services.