San Diego CA— Beginning next week and running through May 11, there will be five overnight closures of either the northbound or southbound lanes of Interstate 5 due to the construction of the Mid-Coast Trolley.
A support column for a future Trolley bridge that will cross I-5 will be built in the center divider just south of Nobel Drive.
Heavy equipment and machinery will be located on the freeway during the closures. Over the five-night operation, an 8.5-foot diameter hole will be drilled in the center divider. Several industrial cranes will hoist a 155-foot-long rebar cage from the freeway and settle it into the bored hole. Thirty-four cement trucks will be staged along the freeway to provide the cement to pour the column.
Northbound I-5 will be closed from State Route 52 to La Jolla Village Drive:

• Wednesday, May 2, from 9:30 p.m. to 5 a.m. on Thursday, May 3
• Thursday, May 3, from 9:30 p.m. to 5 a.m. on Friday, May 4

Northbound motorists will be detoured via State Route 52.
Southbound I-5 will be closed from the Interstate 805 merge to Gilman Drive:

• Sunday, May 6, from 9:30 p.m. to 5 a.m. on Monday, May 7
• Tuesday, May 8, from 9:30 p.m. to 5 a.m. on Wednesday, May 9
• Thursday, May 10, from 9:30 p.m. to 5 a.m. on Friday, May 11

Southbound motorists will be detoured via I-805.
Due to the large operation, there will be times when lanes on the open sections of I-5 will be closed in order to accommodate the heavy equipment that will be operating in the center divider.
Traffic controls and detour signs have been placed to alert motorists in advance.
Nearby residents may hear back-up alarms, drilling, and concrete pumping noises.
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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The San Diego Association of Governments (SANDAG) is the San Diego region’s primary public planning, transportation, and research agency, providing the public forum for regional policy decisions about growth, transportation planning and construction, environmental management, housing, open space, energy, public safety, and binational topics. SANDAG is governed by a Board of Directors composed of mayors, council members, and supervisors from each of the region’s 18 cities and the county government.

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