91É«ÇéƬ

California will soon have the world’s first bridge built with advanced
composites—materials developed for aerospace. Once built, the 140-metre
bridge will carry four lanes of traffic over an interstate highway that divides
the campus of the University of California at San Diego. Developers hope the
lightweight materials will make construction simpler and last longer. A steel
and concrete bridge would be up to five times as heavy. The Federal Highway
Administration, the state and university are splitting the $10 million
cost.