Completion Date: 9/21/2019
Client: MidAmerican Energy Company
This project allowed PAR to support MidAmerican Energy’s comprehensive long-term regional plan for the Midwest electric grid that will bring more than $2 billion in annual benefits to energy consumers throughout the Midwest. PAR’s long standing relationship with MidAmerican Energy and its decades of experience resulted in its selection to provided complete engineering, procurement, and construction of approximately 29 miles of 345 kV and rebuild of the existing 161 kV and 69 kV transmission lines. The existing 69 kV line was rebuilt as a double circuit 345 kV/69 kV and the 161 kV line was rebuilt as a double circuit 345 kV/161 kV transmission line, both on tubular steel monopole structures set on reinforced concreted pier foundations.
The poles are made of self-weathering steel and do not require painting or periodic maintenance. The height of the single-circuit structures will be approximately 100 to 120 feet. The height of the double-circuit structures will be approximately 120 to 150 feet and the span length will be approximately 1,000 to 1,100 feet. Existing 161-kV line poles are approximately 660 feet.
PAR’s participation in this plan will help improve system reliability, relieve existing transmission congestion, improve utilization of existing, generation, lower the cost of delivered energy, optimize wind generation placement, and allow for the regional delivery of renewable generation.
PAR, through its foundations construction division Longfellow Drilling, was selected as part of an EPC team to construct the Aeolus–Jim Bridger 500 kV/345 kV Transmission...View Project