Submitted by Swinerton Management and Consulting

This new pedestrian bridge spanning El Segundo Boulevard in El Segundo connects the Aerospace Corp. Building A9 second floor with the Los Angeles Air Force Base grade level to the north. The project includes reinforced concrete foundations, walls, and steel framing, including core support towers that house stairs and elevators, glazed walls, turnstiles, glass, aluminum and plaster cladding.

The $6.5-million project also included associated site work and landscaping on both properties. One of the major challenges of the project involved the discovery of “beach sand” type soil conditions during the first pier drilling activity, resulting in substantial caving of drilled holes. The subcontractor’s first remedy to the problem was to partially saturate the drilled holes with water in order to stabilize and compact the soil and then resume drilling. The team proceeded with using steel castings to stabilize the holes, which required the mobilization of new drilling equipment.

Project Team

Developer/Owner: The Aerospace Corp., El Segundo
General Contractor: W.E. O’Neil Construction Co. of California, Los
Construction Management: Swinerton Management & Consulting, Inc., Los Angeles
Architect: DMJM-H&N/AECOM, Los Angeles
Civil Engineer: KPFF, Los Angeles
Structural Engineer: DMJM/AECOM, Orange
MEP Engineers: M&P: KMA Associates/Electrical: OMB Engineers, Inc., Costa Mesa
Subcontractors: CSI Electrical, Santa Fe Springs; Carmel Landscaping, Sylmar; Coan Construction, Pomona; Construction Steel Works, Fontana