On early Sunday morning (July 7), construction crews will be stringing overhead power lines across State Route 125 (South Bay Expressway) as part of a transmission line project to enhance service reliability in our region.

The work includes the installation of guy wires and nets, as well as using a helicopter to pull lines between transmission towers crossing the highway. The net installation and wire crossing will take place just south of Mt. Miguel Road and north of H Street.

In order to accommodate the work, the northbound on-ramp from East H Street in the East Lake/San Miguel Ranch area of Chula Vista will be closed from 3 a.m. to 9 a.m. California Highway Patrol officers will also be implementing traffic breaks in the area. Brief intermittent closures of traffic lanes and shoulders on the northbound and southbound sides of SR 125 south of Mt. Miguel Road are expected.

The wire pull across SR 125 is a last critical component of the overall project, which has been underway for the several months. The new high-voltage (230kV) transmission line is scheduled to be put into service later this month so the South Bay has increased system capacity to meet rising energy demand during the summer months.

SDG&E has been coordinating with the California Highway Patrol and Caltrans to ensure traffic safety in the area, while the work is taking place. 

Please use caution as you drive through this area on Sunday morning and plan ahead for potential traffic delays. Thank you for your patience and understanding!