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By JEFFREY HAN, P.E., M.ASCE, MICHAEL MARTELLO, P.E., AND KENNETH WRIGHT, P.E.
Replacing New York State's Tappan Zee Bridge involved traversing more than just water; the team also crossed the hurdles of poor foundation conditions and the enormous scale of the crossing. Creative solutions included long-span plate-girder approaches, precast and preassembled components, giant waterborne cranes, and simultaneous fabrication paths that helped meet the project schedule.
By Robert L. Reid
The challenges that climate change poses for cities is leading many urban areas-large and small-to work to reduce their own carbon footprints. These measures are often aimed at decarbonizing buildings, making transportation sustainable, and converting the local power grid to renewable energy. Making sure that all climaterelated decisions keep social equity and inclusion in mind is another key goal.
by Tara Hoke
Newspapers from a populous Mid-Atlantic state report that the president and owner of a small engineering firm has pleaded guilty to charges of income tax and wire fraud. The reports allege that the president, a civil engineer and ASCE member, defrauded the federal government of several hundred thousand dollars by underreporting his company's tax liabilities and overbilling a government client.
A Question of Ethics
by T.R. Witcher
Wind tunnels, which can generate wind at a reduced scale for research purposes, have been used by the aviation industry since the beginning of the 20th century.
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