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 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 1950s and 1960s as well as the New York State Thruway and the Garden State Parkway in New Jersey, among others. While chief engineer from 1982 to 1993, the many design projects he supervised included a major seismic upgrade, redecking and general overhaul of the Golden Gate Bridge.