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 The Federal Emergency Management Administration’s flood maps are outdated and don’t account for the kind of flooding directly caused by extreme rainfall.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
| Jan 8, 2015
Construction industry could be hurt by non-renewal of terrorism insurance bill
Insurance industry experts say without federal terrorism reinsurance in place for 2015, resulting canceled property/casualty insurance coverage and market chaos could be disruptive to the economy.
| Jan 2, 2015
Ohio’s Licking County to hire construction stormwater runoff specialist
Formed to focus on agriculture, the Licking County (Ohio) Water and Soil Conservation District has branched out to oversee construction sites.
| Jan 2, 2015
Standards groups join forces to spur more sustainable parking facility design
The International Parking Institute, Green Parking Council, and Green Building Certification Institute have joined forces to promote the design of more sustainable parking facilities.
| Dec 23, 2014
EPA okays coal ash recycling in construction materials
The Environmental Protection Agency ruled that the use of coal ash produced in power plants can continue to be incorporated into construction materials.
| Dec 23, 2014
Dunkin’ Donuts launches green building certification for its restaurants
Dunkin Donuts has launched a green building certification program to help franchisees build sustainable, energy-efficient restaurants.
| Dec 23, 2014
EPA releases WaterSense draft specification for flushometer-valve toilets
The U.S. Environmental Protection Agency's WaterSense program has released a draft specification for water-efficient flushometer-valve toilets.
| Dec 23, 2014
American Iron and Steel Institute publishes design guide for new profiled steel diaphragm panels standard
The American Iron and Steel Institute (AISI) published AISI D310-14, “Design Examples for the Design of Profiled Steel Diaphragm Panels Based on AISI S310-13.”
| Dec 18, 2014
New federal regulations impact construction firms doing business with Uncle Sam
Federal contractors may be subject to several new rules in 2015 that impact how they are selected for contracts and how they do business with the federal government.
| Dec 18, 2014
ASHRAE/IES energy standard could become more applicable for global use
A proposed addendum to ANSI/ASHRAE/IES Standard 90.1-2013, Energy Standard for Buildings Except Low-Rise Residential Buildings would make the standard more applicable for use around the world.
| Dec 18, 2014
Boston testing mobile building permit tracking app
The app called Permit Finder could free city employees from having to respond to the 30 to 40 permit status-related calls they receive each week.