The American Association of State Highway and Transportation Officials (AASHTO) just released the 2008 interims for the AASHTO LRFD Bridge Design Specifications, Customary U.S. Units, 4th Edition. These specifications govern the design of foundations for federal and state highway projects. As soon as we find out if there are any significant changes with respect to bridge foundations or retaining walls, we’ll let you know.
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Well-known pile hammer manufacturer APE has purchased technology for driving and coupling large diameter helical piles that could help make this technology more mainstream. Rather than pounding the pile into the ground, the steel drill […]