Over the next century, sea level rise in the Los Angeles region is expected to match global projections with an increase of 0.1 - 0.6 m (5 - 24 inches) from 2000 to 2050 and 0.4 - 1.7 m (17 - 66 inches) from 2000 to 2100. Tides, wave-driven runup, and storm surge sometimes cause coastal flooding in Southern California, especially when big wave storms occur at or near peak high tides. Sea level rise will potentially exacerbate the impacts from these events. The City of Los Angeles owns and maintains coastal infrastructure that includes two power plants, two wastewater treatment plants, and the Port of Los Angeles, one of the busiest in the world. All of these are situated about ten feet above sea level. In addition, a major component of Los Angeles’s economy is dependent upon beach tourism. In 2012, the Los Angeles region attracted over 41 million tourists, who accounted for more than US$16.5 billion in expenditures. The University of Southern California Sea Grant Program engaged city managers and a team of science and outreach experts to develop a science-based and stakeholder-supported adaptation planning process in order to assess the City’s vulnerabilities and begin to prepare for accelerated sea level rise and associated storm impacts. The expert team conducted an assessment of the potential physical, social, and economic impacts of sea level rise on the City’s resources and population, as well as impacts to coastal and shoreline assets.