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The outdated analysis has serious implications for the way infrastructure projects are initiated and designed.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
| Sep 8, 2011
OSHA issues alert on incorrectly rebuilt circuit breakers
The Occupational Safety and Health Administration (OSHA) has issued a hazard alert, warning workers and employers of certain Eaton/Cutler-Hammer molded-case circuit breakers that were incorrectly rebuilt.
| Sep 8, 2011
USGBC Streamlines LEED EB: O&M
The Council has reorganized the prerequisite and credit structure of LEED EB: O&M.
| Sep 8, 2011
USGBC: 30 Legislative ‘Wins For Green Building’ So Far In 2011
A mid-year report by the U.S. Green Building Council says that there have been “30 legislative wins for green building” across 22 states in 2011.
| Sep 8, 2011
Revised Building Codes Adopted After WTC Attacks Being Implemented
U.S. National Institute of Standards and Technology (NIST) code revision recommendations in the wake of the World Trade Center terrorist attacks are being implemented in new high-rise construction including One World Trade Center, the lead building of the new World Trade Center complex.
| Sep 8, 2011
New Sustainability Standard Addresses Disaster Resistance
To aid local governments to adopt high-performance green building codes, the Portland Cement Association (PCA) and the Institute for Business and Home Safety (IBHS) have developed High Performance Building Requirements for Sustainability 2.0.
| Sep 8, 2011
Pilot ISO 50001 Implementations Report Big Energy Savings
The International Organization for Standardization (ISO) recently published ISO 50001 to provide a recognized framework for integrating energy performance into management practices.
| Sep 8, 2011
USGBC Revises Energy Demand Response Credit
Originally launched in 2010, the revised and enhanced Demand Response Pilot Credit establishes guidelines that are anticipated to increase participation in automated energy demand response programs.
| Sep 8, 2011
Water Safety in Buildings Guide Published by World Health Organization (WHO)
This WHO book provides guidance for managing water supplies in buildings where people may drink water, use water for food preparation, wash, shower, swim or use water for other recreational activities or be exposed to aerosols produced by water-using devices, such as cooling towers.
| Sep 7, 2011
NFPA Fire & Life Safety Conference in December
Presentations on recent Fire Protection Research Foundation projects, how September 11th and the Triangle Shirtwaist Factory fire affected high rise design, and a panel discussion on emerging code issues will be featured at the National Fire Protection Association (NFPA)’s Fire & Life Safety Conference on December 12-14 in Orlando, FL.The meeting will include more than 60 educational sessions in which participants can earn continuing education units (CEUs). Presentations will be led by NFPA staff experts and technical committee members, and will be organized in four tracks – building and life safety, detection and alarm, fire suppression, and codes and standards. For more information, visit www.nfpa.org/FLSCONF.
| Sep 1, 2011
Project Aims to Automate Code Compliance Assessment
FIATECH, a consortium of owners from the industrial, power, and retail markets that build large structures, launched a project this year to validate the use of automation technology for code compliance assessment, and to accelerate the regulatory approval process using building models. Long-term objectives include the development of an extensive, open-source rule set library that is approved by industry and regulatory bodies for use by technology developers and code officials.
