Washington has new bounce in its step

July 3, 2006

Pedestrians in a section of the nation's capital may notice a new bounce in their step as Washington experiments with rubber sidewalks.

In one of the biggest tests in the country, Washington recently installed rubber sidewalks around trees on a portion of Rhode Island Avenue, The Washington Post said.

The cost was $60,000, roughly three times more than if it had been concrete. But the walkways are said to last about 14 years around tree roots, nearly three times longer than concrete ones, the Post reports.

This is good for the trees, says John Thomas, the city's chief arborist.

Concrete suffocates tree roots, which then grow upward to fight for air and water, he says. The roots break the concrete, which pedestrians can trip over.

By contrast, rubber sidewalk panels have quarter-inch spaces between them that let air and water through, so tree roots grow downward, as they would in nature.

The sidewalks are also easier on people's knees.

The walkways are made of ground recycled tires molded into squares. One car tire can make 1 square foot of rubber pavement, the manufacturer, Rubbersidewalks Inc. of Gardena, Calif., said.

Copyright 2006 by United Press International

Related Stories

Recommended for you

Sponge creates steam using ambient sunlight

August 22, 2016

How do you boil water? Eschewing the traditional kettle and flame, MIT engineers have invented a bubble-wrapped, sponge-like device that soaks up natural sunlight and heats water to boiling temperatures, generating steam ...

Apple issues update after cyber weapon captured

August 26, 2016

Apple iPhone owners on Friday were urged to install a quickly released security update after a sophisticated attack on an Emirati dissident exposed vulnerabilities targeted by cyber arms dealers.

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.