THE Mid-Coast Trolley Project, a 17.7km light rail double-track extension of the San Diego Trolley Blue Line, was officially opened to passengers on November 21.

The $US 2.17bn extension provides a link from the Old Town Transit Centre north to the University Towne Centre (UTC) Transit Centre.

Construction on the project included eight bridges, 11.2km of at-grade track on or near existing railway alignments, more than 6.4km of viaducts, five at-grade stations and four elevated stations. There were also 1170 new parking spaces installed at five stations.

The new line creates direct links between the border with Mexico and communities south of downtown San Diego with the north of the city.

WSP USA served as the lead environmental and engineering consultant for more than a decade, working for the San Diego Association of Governments (Sandag).

San Diego MTS ordered 25 S700 LRVs in July 2019 that will operate across its entire 85.2km network, including the new extension.

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