The way the federal government analyzes intense rain events isn’t keeping up with the reality of climate change, and that has serious implications for infrastructure projects and the availability of, and rising cost of, flood insurance.
Severe rainstorms, sometimes described as “atmospheric rivers” or “torrential thunderstorms,” are making the concept of a “1-in-100-year flood event” obsolete, according to a report from First Street Foundation, an organization focused on weather risk research.
These events are occurring more frequently due to the impact of climate change, but federal rainfall analysis, managed by the National Oceanic and Atmospheric Administration, isn’t keeping up with the new weather conditions, First Street says.
Half the people in the U.S. live in a county where a 1-in-100-year flood is at least twice as likely now as it had been in the past, coming once every 50 years instead of every 100 years. In some areas, a so-called “1-in-100-year” rainfall could now happen far more frequently—as often as every 5 to 10 years.
The outdated analysis has serious implications for the way infrastructure projects are initiated and designed. And, because FEMA’s federal flood insurance program greatly underrepresents the number of people that could fall into FEMA’s Special Flood Hazard Areas, millions of Americans may be unaware of their current flood risk.
Inaccurate flood risk data due to underestimating the impact of rainfall also impacts the cost and availability of flood insurance—this is especially true for property that isn’t close to the ocean or inland bodies of water.
The government is working to remedy the situation, though. NOAA, as reported by CNN, says it is working on a revamped approach to its rainfall analysis that is expected to be completed in 2027.
Related Stories
| Jun 26, 2014
Ohio is first state to roll back renewable energy standards
Ohio became the nation’s first state to roll back renewable energy standards after the state House of Representatives passed Senate Bill 310 and Gov. John Kasich recently signed the measure.
| Jun 26, 2014
Walkable areas lead to higher rents for developers
New research from a George Washington University research group and LOCUS, a coalition of real estate investors that's part of Smart Growth America,says that offices in “Walkable Urban Places (WalkUPs)” bring developers 74% more rent per square foot.
| Jun 18, 2014
ASHRAE publishes guideline on specifying Building Automation Systems
Performance monitoring guidance is a key feature of the document. It provides designers of BAS systems with recommendations for good practice, project considerations, and detailed discussion of design options.
| Jun 18, 2014
Battle over low-cost, Chinese-made solar equipment could stunt solar power growth
The U.S. Department of Commerce tentatively agreed to assess tariffs of up to 35% on solar equipment, a move that could slow the rapid growth of the domestic solar power industry.
| Jun 18, 2014
Senate passes ‘compromise’ bill that green lights 26 new VA hospitals, clinics
The U.S. Senate reached a compromise deal combining elements of two competing Veterans Administration reform bills that would, among other things, gives the go-ahead for the construction of 26 new VA hospitals and clinics.
| Jun 18, 2014
Pittsboro, N.C., approves massive new development plan
The Pittsboro, N.C., Board of Commissioners approved the master plan for Chatham Park, a massive residential and commercial project that could bring 60,000 people to Pittsboro over several decades.
| Jun 11, 2014
AGC to study causes of construction deaths, injuries
The Associated General Contractors of America is conducting a new study to make job sites safer and search for ways to lower the number of injuries and deaths in the construction industry.
| Jun 11, 2014
U.S. infrastructure quality ranks only 19th in the world
The quality of infrastructure in the U.S. ranks just 19th in the world, trailing countries such as Oman, Portugal, and Spain, according to the World Economic Forum’s Global Competitiveness Report.
| Jun 11, 2014
ISO releases standards for comparing city services worldwide
The International Organization for Standardization (ISO) has created the first standards to compare services of the world’s cities.
| Jun 11, 2014
Federal bill would promote shifting to energy-efficient roofs
A bipartisan proposal from U.S. Reps. Tom Reed, R-N.Y., and Bill Pascrell, D-N.J., would make roof replacement cost less and would help commercial building owners adopt energy-efficient systems.
