Photo Courtesy of Roadway Worker Training Inc. Plane piloted by Crisafi (right) crashed Oct. 3, killing him and construction business associate Vaccarello in Gary, Ind. Related Links: Website of All-Railroad Services Corp. (Vaccarello) Website of Roadway Worker Training Inc. (Crisafi) Online obituary for Patsy Crisafi Federal investigators are continuing a probe into the crash of a private plane on Oct. 3 near Gary, Ind., that killed two Florida-based veteran rail construction executives, one of them the pilot. But a preliminary report offers few clues to the cause of the accident.Killed were Patsy J. "PJ" Crisafi, 48, co-founder and executive vice
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.