The Southern Loop – 345kV Transmission Line
Scope: 53 miles of 345kV and 115kV
Client: Vermont Transco, LLC
Irby Construction Company was a subcontractor to Cianbro on the construction of 345 kV transmission line for the Southern Loop project including installation of a new 345 kV transmission line and relocation of existing 345 kV and 115 kV interconnection lines. This project totaled 53 miles of which Irby installed approximate 25 miles of conductor and fiber. The project included direct embedded wood H-frame structures, steel mono-pole structures on anchor bolt foundations, twin bundled 954 ACSR conductor and two OPGW static lines.
Construction Start: 2009
Completion Year: 2010