SDSU Trolley Station & Pedestrian Bridge

SDSU Trolley Station & Pedestrian Bridge

The underground station at San Diego State University is the first of its kind in San Diego. At more than 300 feet long, 80 feet wide, and 55 feet below grade, the subterranean station is as large as a 30-story building turned on its side. The design features a mezzanine level that spans over the eastbound and westbound tracks, twin elevator banks, escalators, and a 24-hour security station.


Morley Construction Company provided concrete subcontracting services for the project, totaling 26,775 cubic yards. Structural concrete work included overhead waffle slabs over two feet in depth, voluminous columns, and extensive high-end architectural walls. Morley developed and implemented creative formwork construction techniques and cycling schedules to expedite construction. State-of-the-art layout equipment ensured key dimensions on the pedestrian bridge to create a superior product ahead of schedule.


Project Details:

  • 113,000 gsf
  • 26,775 cy of concrete


Metropolitan Transit Development Board

General Contractor:

Clark Construction


URS and Zimmer Gunsul Frasca


  • California Construction – Best of California, Transportation
  • ACI (San Diego Chapter) – Transportation Facility Award
  • ACI (San Diego Chapter) – Concrete Structure Bridge Award

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