Fly ash embankment study: EPA-backed case tracks leachate in Route 213 fill; groundwater stays clean

In a significant environmental initiative, Maryland incorporated about 60,000 tons of Class F coal fly ash into the Route 213 ...

Foundry sand as road fill: Indiana test turns waste into embankment material; study notes limits

In 1996, Indiana launched an innovative project to examine the viability of incorporating waste foundry sand into highway ...

California buried about 270,000 waste tyres beneath a highway near Confusion Hill; the rubber became lightweight fill for two new bridges

A California highway project found an unusual use for thousands of discarded tyres. In 2009, the California Department of ...