Diane M. Fiorelli, PE, GE, LEED AP


Diane Fiorelli has 20 years of experience integrating geotechnical engineering design with the seismic, civil, structural, and environmental aspects of projects. She has helped develop innovative design solutions resulting in major cost and schedule savings for a variety of challenging projects and foundation types throughout the United States.

As a Principal at Langan, Fiorelli leads a group of engineers who are recognized for their creative and collaborative approaches to complex projects involving stadiums, high-rise and mid-rise infill developments, brownfields redevelopments, and academic facilities.

Fiorelli has presented on unique foundation design solutions at national conferences and has had her work on deep foundations cited in several published design guidelines.