G-BEAM | Fiber-reinforced polymer tub-girders that are corrosion resistant and designed to last over 100 years with little to no maintenance  https://www.youtube.com/watch?v=faQXIPcHeUU CASE STUDY Grist-Mill Bridge, Hampden, ME System for replacement on US Rte. 1 75’ span length 40’-4” out-to-out width Girders designed by Advanced Infrastructure Technologies (AIT) Remaining project designed by T.Y. Lin International