Climate Change: Future Federal Adaptation Efforts Could Better Support Local Infrastructure Decision Makers

A letter report issued by the Government Accountability Office with an abstract that begins "According to the National Research Council (NRC) and others, infrastructure such as roads and bridges, wastewater systems, and National Aeronautics and Space Administration (NASA) centers are vulnerable to changes in the climate. Changes in precipitation and sea levels, as well as increased intensity and frequency of extreme events, are projected by NRC and others to impact infrastructure in a variety of ways. When the climate changes, infrastructure-- typically designed to operate within past climate conditions--may not operate as well or for as long as planned, leading to economic, environmental, and social impacts. For example, the National Oceanic and Atmospheric Administration estimates that, within 15 years, segments of Louisiana State Highway 1-- providing the only road access to a port servicing 18 percent of the nation's oil supply--will be inundated by tides an average of 30 times annually due to relative sea level rise. Flooding of this road effectively closes the port.