Planning retrofit actions under tight budget constraints is a challenging process.This can be achieved through a holistic management framework that accounts for uncertainties and attitudes of the decision maker.Highway bridges play an important role in the economic growth and social development of most countries.According to the United States Geological Survey (USGS),there is a 0.62 probability of a strong earthquake (i.e.magnitude ≥6.7) striking the San Francisco Bay Region (SFBR) during the time period of 2003 to 2032 (USGS 2003).This highlights the necessity of optimal retrofit strategies to improve structural seismic performance of existing highway bridges.