New Jersey Gov. Chris Christie (R) on Oct. 7 killed the $8.7-billion Trans-Hudson River passenger rail tunnel project that was expected to double commuter train capacity between New Jersey and Manhattan. + Image Proposed route was downriver from existing Amtrak tunnel. Christie said he feared cost overruns on the Access to the Region’s Core (ARC) project could cost the state between $2 billion and $5 billion, despite commitments of $3 billion each from the Federal Transit Administration and the Port Authority of New York and New Jersey. CHRISTIE “I will not allow taxpayers to fund projects that run over budget
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.