The Alamedan: Alameda Point Explained: A plan to stem the tides, September 6, 2013


One of the many challenges to be faced by the city and developers seeking to revitalize Alameda Point will be rising seas. The Intergovernmental Panel on Climate Change last estimated that the world’s mean sea level could rise by between 7 and 23 inches by 2099 (new estimates are due in just a few weeks); state-level estimates put sea level rise on California’s coasts as high as 69 inches by the turn of the next century.

A draft environmental study and a separate plan for rebuilding the Point’s roads, drains and utilities anticipates the waters that surround much of the Point rising by as many as 55 inches over the next 100 years; that’s not including wind-induced and once-a-century high tides that could lift waters an additional 3.6 feet.

Both documents outline a series of near- and long-term strategies for protecting existing structures and future development from rising tides, strategies that include creating higher ground, building levees and floodwalls and if all else fails, ceding some of former Naval air station back to the Bay.