Recent storms such as Hurricanes Ida and Henri that claimed dozens of lives due to flooding point to the need for cities to increase efforts to stem the impact of heavy rainfall.
The recent storms support the notion that climate change is making the impact of large storms worse. The atmosphere holds more water as temperatures rise. The air becomes 4% more saturated with water for every 1-degree Fahrenheit that the planet warms. Thus, the heaviest downpours in the Northeast now drop 55% more rain compared to those events in the 1950s, according to the most recent National Climate Assessment.
Better data about flood risks could help cities make massive rainfall events less deadly, but data gathering has not kept up with the latest conditions. The Federal Emergency Management Administration’s flood maps are outdated and don’t account for the kind of flooding directly caused by extreme rainfall.
Cities must upgrade urban stormwater infrastructure including street-level drains, concrete sewers that can capture and hold water, roadside ditches, and flood-control reservoirs to cope with the new reality. In addition, more green spaces could help absorb some rainfall, preventing it from entering drains. These steps can help, but it remains to be seen if it is even possible to engineer our way to 100% protection against flooding.
Related Stories
Codes and Standards | Jul 22, 2020
Mobile app calculates sound transmission for wood-framed assemblies
American Wood Council tool for floor-ceiling assemblies.
Codes and Standards | Jul 22, 2020
Architecture billings remain in negative territory, begin to stabilize
Fewer architecture firms report declining billings this month.
Codes and Standards | Jul 20, 2020
N.Y. construction firm to pay $1.5 million to settle sexual harassment claim
Managers said to demand sex for pay and OT opportunities.
Codes and Standards | Jul 16, 2020
Tips to make optimal use of salvaged materials
Integrated teams, staging warehouse, and looking early and often, among recommendations.
Codes and Standards | Jul 15, 2020
Georgia gives the go-ahead for tall mass timber construction
Standards review scheduled to be completed by July 2021.
Codes and Standards | Jul 15, 2020
Softwood-lumber duties boost expenses amid COVID-19 outbreak
Little hope this year for resolution of trade dispute with Canada.
Codes and Standards | Jul 14, 2020
Metal Construction Assn. releases three EPD updates
Pertain to Metal Composite Materials, Insulated Metal Panels, and Roll Formed Aluminum and Steel Cladding.
Codes and Standards | Jul 13, 2020
5 must reads for the AEC industry today: July 13, 2020
4 technologies for improving building sanitation and tech's ever-evolving impact on the multifamily space.
Codes and Standards | Jul 9, 2020
Funding opportunity for field validation of high-impact building technologies
Dept. of Energy program targets dynamic interactions with electric grid.
Codes and Standards | Jul 8, 2020
Standards for reducing risk of COVID-19 in senior living communities
AIA releases strategies and illustrations for the sector.