William LeMessurier

William LeMessurier
Born(1926-06-12)June 12, 1926
DiedJune 14, 2007(2007-06-14) (aged 81)
EducationHarvard College (AB 1947); Harvard Graduate School of Design; Massachusetts Institute of Technology (SM 1953)
OccupationsStructural engineer, architect, professor
Known forStructural engineering

William James LeMessurier Jr. (/ləˈmɛʒər/; June 12, 1926 – June 14, 2007) was an American structural engineer. He worked on the Citicorp Center, Boston City Hall, the Singapore Treasury Building and the Dallas Main Center. He is known for having to reassess his calculations during the Citicorp Center engineering crisis.