Peter Eric Jahn, a civil, structural, and mining engineer with top firms as well as an international aid worker, has died. He was 85.
Jahn, P.E., M.ASCE, launched a nearly half-century career in the early 1960s at Ammann & Whitney. There he participated in two major construction projects, the Throgs Neck Bridge and the Verrazzano Narrows Bridge. The young engineer took on the dangerous work of inspecting construction, including the spinning of cable and ensuring that concrete anchorages were setting correctly. These checks were often performed in icy, wintry weather, and late at night. The Verrazzano Narrows was
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