A study sponsored by the American Glass Bead Manufacturers' Association reveals that "a growing number of imported glass bead products for highway markings exhibit high concentrations of heavy metals, including arsenic and lead."
Cowi has won a contract as owner's engineer for an eight-lane replacement immersed tunnel under the Fraser River near the Pacific coast city of Vancouver. Cowi said it will draw on its experience designing the original four-lane George Massey Tunnel in 1959 and whose removal the engineering firm will later oversee.
