Earthquake Damage Repair and Retrofit of the Seventh St. Terminal Port of Oakland

by George C. Fotinos, Ben C. Gerwick, Inc, San Francisco, United States,
Gerald M. Serventi, Ben C. Gerwick, Inc, San Francisco, United States,
Larry L. Scheibel, Ben C. Gerwick, Inc, San Francisco, United States,

Document Type: Proceeding Paper

Part of: Ports '92


The October 17, 1989 earthquake resulted in the collapse of the two-level Cypress St. Freeway in Oakland. Television and newspaper coverage revealed the tragic loss of life and property damage of this vital highway link. Less than two miles from the Cypress Freeway is located the Port of Oakland Seventh Street Terminal Complex. This terminal was constructed of hydraulically placed sand fill. The earthquake resulted in liquefaction of the hydraulic sand fill and lateral movement of the perimeter dike and concrete wharves resulting in significant damage to the deck-support concrete batter piles. After a detailed survey of the structural damage was made, it became apparent that the repairs made to the wharves and the dike had to take into account the effects of future earthquakes of larger magnitude. The repair and retrofit construction work to the concrete wharves and perimeter dike was accomplished in a phased program so that portions of the Seventh St. Terminal could be turned over to the operating companies as rapidly as possible.

Subject Headings: Highways and roads | Hydraulic fills | Concrete piles | Earthquakes | Rehabilitation | Ports and harbors | Soil liquefaction | Lifeline systems

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