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
| Feb 6, 2013
BOMA favors voluntary energy benchmarking and disclosure, opposes mandates
The Building Owners and Managers Association (BOMA) International announced support for voluntary energy benchmarking, but said it opposes mandates for benchmarking, disclosure, and labeling that many states and municipalities are implementing.
| Feb 6, 2013
Lumber Standard Committee approves new Southern Pine design value changes
The American Lumber Standard Committee Board of Review has approved the Southern Pine Inspection Bureau’s design value changes for all sizes and grades of visually graded Southern Pine dimension lumber.
| Feb 6, 2013
CEIR seeks public input on draft of PV racking and attachment document
The Center for Environmental Innovation in Roofing (CEIR) has released the first public draft of PV Racking and Attachment Criteria for Effective Low Slope Metal Panel Roof System Integrationfor an initial round of public comment.
| Feb 6, 2013
Insurance Institute demonstration shows advantages of following wind resistance standards
A demonstration by the Insurance Institute for Business and Home Safety shows how powerful winds affect concrete-and-steel buildings built with different techniques.
| Jan 31, 2013
Proposed ASHRAE legionellosis prevention standard open for third public comment
Changes to a proposed ASHRAE legionellosis prevention standard associated with building water systems are open for public comment.
| Jan 31, 2013
More severe wind storms should prompt nationwide reexamination of building codes, says insurance expert
The increased number and severity of storms with high winds nationally should prompt a reexamination of building codes in every community, says Mory Katz, vice president, Verisk Insurance Solutions Commercial Property, Jersey City, N.J.
| Jan 31, 2013
California Building Standards Commission adopts 2013 code update
The California Building Standards Commission adopted the new 2013 state standards code that includes new energy code provisions, accessibility standards, green building and water use modifications.
| Jan 25, 2013
D.C. authority wants to halt sewer tunnel projects while investigating green stormwater alternatives
The District of Columbia Water and Sewer Authority has proposed suspending a tunnel-building project.
| Jan 25, 2013
Energy modeling needed to overcome ‘plug load problem’ to meet high green standards
Plug loads illustrate how much end-users impact overall building energy use.
| Jan 25, 2013
ASHRAE publishes revised filtration standard, combines Standard 52.1 and 52.2
A newly revised filtration standard from ASHRAE combines two standards aimed at improving the technical accuracy of filter testing.
