Frank L. Stahl, 91, a Holocaust survivor who became a noted bridge designer and the chief engineer at Ammann & Whitney Consulting Engineers PC, at which he built and rehabbed many landmark U.S. spans and highways, died on April 17 in Sandy Springs, Ga. The New York City firm says his death was due to natural causes. Stahl stands at the record-settingVerrazano-Narrows bridge, which opened in 1964. STAHL Stahl joined A&W in 1946, working directly for its legendary founder, O.H. Ammann. Stahl held key roles in designing Philadelphia's Walt Whitman Bridge and New York's Verrazano-Narrows and Throgs Neck bridges in
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.