Deseret News Civil engineers grade state on infrastructure Share this story Traffic moves along Triumph Boulevard as it passes over I-15 in Lehi on Wednesday, Dec. 16, 2020. The interchange was added as part of the Utah Department of Transportation’s Technology Corridor project, a three-year project that brought major revisions to I-15, interchanges and surrounding roads from Lehi Main Street to state Route 92. Steve Griffin, Deseret News SALT LAKE CITY — Failure to address needed repairs in infrastructure like high hazard dams, bridges, wastewater treatment systems and even levees designed to hold back floodwaters costs the average U.S. family $3,400 in disposable income each year, according to findings by the American Society of Civil Engineers.