Project Locations & Information > Bethel-Norwalk : Project Description

Bethel to Norwalk, CT

CL&P energized the new Bethel-Norwalk (B-N) 345-kilovolt (kV) electric transmission line on October 12, 2006. This line will allow an additional 600 megawatts of electricity to be delivered to southwest Connecticut and the region.

Bethel-Norwalk Project Facts

Length: Approximately 21 miles
Line voltage: 345-kV - the standard already in place for 398 miles in Connecticut.
Cost: $337 million
Towns along right of way: Bethel, Norwalk, Redding and Wilton
Timetable:
  • Regulatory review began July 2001
  • Siting Council certified project July 2003
  • Line construction began spring 2005
  • In-service date - October 2006
Construction:
  • Installed the longest length of 345-kV solid underground cable in the United States
  • Employed state-of-the-art gas-insulated system (GIS) substation technology that reduced land space to meet site limitations
  • Installed over 160 miles of conduit/pipe
  • Erected over 1,200 tons of steel
  • Poured more than 12,000 truckloads of concrete
  • Handled more than 14,000 truckloads of soil/rock
  • Completed over 60,000 wire terminations
get Abode Acrobat Reader

For questions, comments and requests for information about NU Transmission: Contact Us