There are dozens of levees across Arizona that are intended for protection against floods but it is unclear how many of them are being properly maintained.
Light rail extensions disrupt business and traffic. Using steel rods to reinforce concrete beneath the tracks further slows the process while raising sustainability and worker safety concerns. So Valley Metro used an alternative on its current northwest extension.Fiber-reinforced concrete does just what it says on the tin: It replaces a cage of half-inch rebar with
Light rail extensions disrupt business and traffic. Using steel rods to reinforce concrete beneath the tracks further slows the process while raising sustainability and worker safety concerns. So Valley Metro used an alternative on its current northwest extension.Fiber-reinforced concrete does just what it says on the tin: It replaces a cage of half-inch rebar with