In a step toward meeting one of President Trump’s most prominent campaign pledges, the Dept. of Homeland Security is seeking firms to provide prototypes of a U.S.-Mexico border barrier.
In a presolicitation notice posted on Feb. 24 on the website FedBizOpps.gov (fbo.gov), DHS’s Customs and Border Protection agency announced that, by about March 6, it plans to issue a solicitation for design and construction of “several prototype wall structures in the vicinity of the United States border with Mexico.”
Because it can moderate the damaging effects of earthquakes, base-isolation is a technique used primarily in seismically active regions. ENR takes a look at some of the largest applications of base-isolation technologies in the world.