Despite a nearly $500,000 estimating error on a bridge renovation project, Spokane City Hall is standing behind its decision to put a small-businessman with no engineering training in charge of its engineering division. Kyle Twohig, 32, took over the city’s engineering services department in June after City Engineer Mike Taylor was reassigned to focus on a major water project. Twohig, who is paid nearly $90,000 a year, owns a coffee stand in Spokane and previously sold custom snow skis. He also helped manage construction projects in the Seattle area before returning to Spokane in 2008.