San Diego City College construction development plans impacted by seismic survey

Seismic trenching is underway at San Diego City College to map faults, impacting final decisions regarding building usage.

The final design of San Diego City College’s $80 million renovation of four existing buildings will be determined by seismic trenching meant to learn how far onto the campus two downtown earthquake faults extend.

The trenching already has scotched plans to remodel one 15,000-square foot building, which was to be transformed from classroom space into a bookstore, a student center and other uses. Excavation and analysis completed in the fall determined that one of the faults almost certainly extends under that structure, known as the M building.