Inspector General report found J. Brett Blanton and his family misused government vehicles, driving them on errands and vacations unrelated to his work.
Skanska Koch project employees Victor R. Martins and Donato G. Fiocca were struck by a train on a track supposed to be shut for repairs, officials said.
Tutor-Perini will lead construction of 14 miles of new toll lanes on congested D.C. suburban highway and rebuild of a 60-year old Potomac River crossing.