Dianne Fiorelli


A leader at work, in the industry and in the community
36, Associate
Langan Engineering & Environmental Services
Irvine, Calif.

Diane Fiorelli manages most of the geotechnical and environmental projects for Langan in Southern California while also handling invoicing, collections and client relations. Her projects have included foundation stabilization for the National September 11 Memorial & Museum slurry wall and the Catalina Island Beach Club expansion. With a bachelor's degree in civil engineering from The Cooper Union for the Advancement of Science and Art in New York City and a master's in geotechnical engineering from the University of California at Berkeley, she has developed training classes and seminars on foundation design. She also has served on Langan's next-generation forum, which connects younger members with the executive committee. In Long Beach, Calif., she contributes to Operation Easter Basket, providing children with baskets of school supplies, toys and more.