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The outdated analysis has serious implications for the way infrastructure projects are initiated and designed.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
| Dec 26, 2013
OSHA may require companywide reporting of injuries and illnesses
The Occupational Safety and Health Administration is considering a change in policy that would require organizations to submit company-wide data on illnesses and injuries.
| Dec 26, 2013
USGBC recognizes Ohio for achieving 100th LEED-certified public school
The U.S. Green Building Council (USGBC) has recognized the state of Ohio and the Ohio School Facilities Commission (OSFC) on the LEED certification of the 100th public school building in the state.
| Dec 26, 2013
WDMA launches project to create ISO-compliant architectural doors
WDMA's National Architectural Door Council has initiated a project to create ISO-compliant Product Category Rules for architectural wood flush and stile and rail doors
| Dec 19, 2013
Defense Department okays Green Globes standard for DoD facilities
The Green Globes certification program from the Green Building Initiative can be used for the renovation and construction of Department of Defense facilities following agency endorsement.
| Dec 19, 2013
New York City proposal may boost standards for crane maintenance
New York City may boost maintenance standards for cranes operating in the city, including the addition of load cycle counters to record data regarding every lift that a crane performs.
| Dec 19, 2013
Lawmakers say EPA’s Energy Star standards lack transparency
A bipartisan group of lawmakers is raising concerns that the Environmental Protection Agency has not been transparent in drafting energy-efficiency standards under the Energy Star program.
| Dec 18, 2013
ASHRAE publishes 2013 thermal comfort standard
Major revisions for design and measurement of comfortable spaces are included in a newly published ASHRAE 2013 thermal comfort standard.
| Dec 11, 2013
Texas to require architects to be fingerprinted to get licensed
Starting January 1, 2014, architects who apply for an occupational license in Texas will have to share their fingerprints with the state.
| Dec 11, 2013
Province of Ontario is reviewing bill to require timely payments to contractors
Legislation is under review in the Province of Ontario that would mandate timely payments to contractors.
| Dec 11, 2013
Federal design-build proposal could make it easier for small businesses to land government contracts
The Design-Build Efficiency and Jobs Act, a bill pending in the U.S. House of Representatives, would streamline the bid and proposal process by requiring government agencies to use a two-step process when seeking design-build contracts for projects worth more than $750,000.
