This complex transmission project provided a significant improvement to the reliability and capacity of the transmission system in Southern Maine. TRC’s role included permitting, design, procurement, and construction of a new 115kV substation, a major expansion to the existing 345kV substation, and upgrades at three related 345kV substations and six 115kV substations. Also included was the design and construction of over 30 miles of transmission rebuild and 10 miles of transmission reconductor, impacting eight existing transmission line sections. The project posed extensive planning, sequencing, and commissioning challenges, as production needed to be accomplished with minimal system outages to maintain the service load during construction.
TRC, as a joint venture with E.S. Boulos, provided engineering, licensing, procurement, and construction services. The project was divided into two phases:
The Maguire Road Project was completed in Spring 2009, and now provides Southern Maine with increased electrical capacity and upgraded system reliability.