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Postponed: Overnight Closures of Interstate 5 for Mid-Coast Trolley Construction Project

May 23, 2018 - The scheduled closures of Interstate 5 that had been planned for this week and next have been postponed and a new schedule is due for release soon.

The closures were to have occurred Thursday, May 24 and Tuesday, May 29. Construction schedules can shift due to the coordination of equipment and the conditions encountered at the construction site.

During these overnight closures, a support column for a future Trolley bridge that will cross I-5 is being built in the center divider just south of Nobel Drive.

Heavy equipment and machinery needs to be moved across the freeway during the closures. Crews have begun drilling the 8.5-foot diameter hole in the center divider. When the new schedule is determined, large cranes will be brought on site to hoist a 155-foot-long rebar cage from the freeway and settle it into the bored hole. Once the cage is settled into the hole, more than 30 concrete trucks will be staged along the freeway to place the concrete for the column.

Traffic controls and detour signs will be placed days in advance of the closures to alert motorists before the closures occur. 

The Mid-Coast Trolley project will extend Blue Line Trolley service 11 miles north from the Old Town Transit Center to the University City community, serving major activity centers such as Mission Bay Park, the VA Medical Center, UC San Diego, and Westfield University Town Center mall. Mid-Coast Trolley construction began in fall 2016 and service is anticipated to begin in fall 2021.  The current budget is $2.1 billion, which includes financing costs. The project is funded through the TransNet half-cent sales tax and the Federal Transit Administration.

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