U.S. cities are revamping how they handle stormwater to reduce flooding and capture rainfall and recharge aquifers.
New policies reflect a change in mindset from treating stormwater as a nuisance to be quickly diverted away to capturing it as a resource. U.S. urban areas generate an estimated 59.5 million acre-feet of stormwater runoff per year on average, equal to 53 billion gallons a day. That much water is equal to 93% of the country’s total municipal and industrial water use.
In Los Angeles, the nonprofit Trust for Public Land has been removing impervious surfaces in alleys and school grounds and replacing asphalt with natural infrastructure, including trees and pervious surfaces.
In the eastern part of the country where rainfall is more plentiful, cities including New York and Pittsburgh are installing green solutions such as rain gardens and bioswales. Cities are also instituting stormwater fees, charging landowners based on the area of impervious surfaces on a property. More cities are also using permeable pavers for sidewalks and parking lots.
Recharging aquifers via more permeable surface areas not only makes more groundwater available, but it also helps prevent land subsidence that can cause buildings to slowly sink.
Related Stories
Codes and Standards | Jun 28, 2021
Local and state building energy performance standards aim to curb climate change
Owners must up the ante on operations and retrofits.
Codes and Standards | Jun 24, 2021
Biden Administration will restore ‘Waters of the U.S.’ protections ended by Trump
Early revision more likely to hold up in court, says legal expert.
Codes and Standards | Jun 23, 2021
Denver unveils renewable heating and cooling plan
City releases roadmap to decarbonizing existing homes and buildings.
Codes and Standards | Jun 22, 2021
Actually, few companies plan to significantly reduce their office footprint
CBRE survey shows that many firms will continue with hybrid work.
Codes and Standards | Jun 21, 2021
Vancouver, B.C., may delay new zero emissions building standards
Building permit delays may postpone new standards by a year.
Codes and Standards | Jun 17, 2021
Buffalo’s parking reform having noticeable impact on development
Elimination of mandatory parking allotments encourages new projects.
Codes and Standards | Jun 16, 2021
Inconsistent building codes make some states more vulnerable to hurricanes
Florida takes top spot for strongest building code in latest IBHS survey.
Codes and Standards | Jun 15, 2021
Growing housing supply gap will worsen affordability crisis
Supply projected to fall 4.5 million units short in 2022.
Codes and Standards | Jun 15, 2021
Florida will allow virtual inspections, building code enforcement, permit issuance
New law will go into effect on July 1, 2021.
Codes and Standards | Jun 10, 2021
New York City cracks down on construction site safety
Buildings Dept. issues new safety legislation for City Council consideration.