Riley Mahaffey, P.E., LEED Green Associate, is one of the principals at Lochsa Engineering where he is responsible for the design of commercial, institutional, and industrial projects with a focus on seismic retrofit, seismic investigation, specialty theming, and infrastructure/wastewater development. His more than 25 years of engineering experience spans from assessing structural damage and designing repairs/retrofits after the Northridge earthquake in Southern California, to seeing the completion of the Las Vegas City Center urban design project, the largest privately funded construction project in U.S. history.