Even as Alabama transportation officials say federal stimulus money will not cover all the state’s necessary projects, the Birmingham region will soon lose access to $100 million in public transit funds because affected municipalities haven’t put together a plan after four years. The Federal Transit Administration money was set aside in a 2005 highway bill with the intent of lessening traffic in the Interstate 65 corridor between Birmingham and northern Shelby County. Disbursement was conditional on an approved plan and 20% local matching funds. Engineers are analyzing traffic-mitigation strategies, but intercommunity cooperation has not coalesced in time for a plan
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.