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 | Feb 7, 2017
Newer structural standards mitigating earthquake impacts in Oklahoma
Buildings constructed in the last two decades are largely holding up to increased seismic activity.
Codes and Standards | Feb 6, 2017
New York State offers $36 million for energy efficiency on commercial buildings
Programs will provide money for both owners and renters.
Codes and Standards | Feb 6, 2017
New white paper on modular bathroom pods offers insight on best uses
When to use them, cost, and installation are issues that are explored.
Codes and Standards | Feb 3, 2017
Justice in Design initiative to explore how to design a modern jail
The report will inform design principles for New York City jails.
Codes and Standards | Feb 1, 2017
Massachusetts, Colorado, Illinois lead annual Top 10 States for LEED Green Building list
LEED for Building Operations and Maintenance the most popular rating system in top 10 states.
Codes and Standards | Jan 31, 2017
Planning for world’s first floating city underway
New approach to resiliency examined in French Polynesia.
Codes and Standards | Jan 30, 2017
Denser development could reduce emissions more than building energy retrofits
More tightly packed cities would cut building emissions significantly, study says.
Codes and Standards | Jan 27, 2017
Calif. legislator proposes statewide solar mandate for new buildings
It would be the first such requirement in the U.S.
Codes and Standards | Jan 25, 2017
Standard baseline for measuring building efficiency needed
EUI could push sustainability through market-driven approach.
Codes and Standards | Jan 23, 2017
Workers, local officials rally for new construction safety law in New York City
The new law would require those who work on 10-story-plus buildings to go through an apprenticeship program.