Concrete vehicle protection fences are installed as medians and car stops on expressways and large roads. Charles McDevitt, an engineer at the Federal Highway Administration in the United States ...

Movable concrete and steel barriers can be moved from one side of a lane to the other or to the shoulder, as appropriate, when work is complete. They are particularly useful for work zones over ...

Data from the Federal Highway Administration show there were 87,606 work-zone crashes nationwide in 2010 alone, about 1% of which included fatalities among drivers and construction workers, with ...

Concrete road barriers were first used in California in 1946, ... According to the Federal Highway Administration, the F-Shape barrier has the same 3-inch-high base, ...

However, barriers and prejudices to recycled products remain, although the economics are starting to make recycled materials look more attractive. ... He is in charge of the Recycled Concrete ...

Mallette Bros. Construction discovered a better way to handle concrete road barriers by utilizing a hydraulic lifting system. The Mississippi-based asphalt contractor began implementing hydraulic ...

They crashed a 7,000-pound electric pickup — weighing 2,000 pounds more than a gas-powered pickup — at 62 mph into concrete barriers commonly used as freeway medians.