Oregon rescinds tsunami-zone construction ban

The Oregon legislature has repealed a ban on construction of new critical facilities in tsunami inundation zones.

The action now allows fire stations, police stations, and schools to be built where tidal waves caused by offshore earthquakes could strike the coast.

An Oregon State University professor and an earthquake geologist argued that building in a tsunami zone is a foolhardy strategy with the potential for waves to reach seven stories in height.

But officials in coastal communities countered that placing an outright ban on new facilities creates a hardship that could stifle development.

A new facility being built by the University of Oregon in a tsunami zone demonstrates the lengths designers have to go to in order to make buildings able to withstand strong earthquakes and the biggest tsunamis. The building will feature a rooftop evacuation site that can accommodate more than 900 people.

The neighboring states of Washington and California have beefed up building codes in recent years to address the threat of tsunamis. Washington requires municipalities and counties to establish rules to limit development in areas that are frequently flooded or could be hit by tsunamis. California does not restrict development in tsunami zones, but it recently amended its building code to require that certain types of buildings be constructed to withstand tsunamis.

New York City has two very large buildings dedicated to answering the 911 calls of its five boroughs. With more than 11 million emergency calls annually, it makes perfect sense. The second of these buildings, the Public Safety Answering Center II (PSAC II) is located on a nine-acre parcel of land in the Bronx. It’s an imposing 450,000 square-foot structure—a 240-foot-wide by 240-foot-tall cube. The gleaming aluminum cube risesthe equivalent of 24 stories from behind a grassy berm, projecting the unlikely impression that it might actually be floating. Like most visually striking structures, the building has drawn as much scorn as it has admiration.