Trends Fall 2014 | Page 17

Serving communities in crisis Colorado engineers still hard at work one year after historic flooding event By Jennifer Schmidt C atastrophic Colorado flooding made headlines last September, destroying homes and roads, damaging key infrastructure, and temporarily paralyzing parts of the state in its wake. Affected communities began repairing and rebuilding immediately, and a team from Ayres Associates has been at the ready to help along the way. With two offices in Colorado – one in Fort Collins and another in Denver – Ayres’ civil and hydraulic engineers, hydrologists, geomorphologists, and surveying specialists were in the heart of the hardest hit areas and well positioned to assist with the emergency flood work. “This was in our backyard,” said Anthony Alvarado, a water resources engineer in Ayres’ Fort Collins office. “We were familiar with the Big Thompson River. A lot of the affected sites we’d already done previous work on, and we’ve driven the damaged corridors many times.” This shot of the Big Thompson Canyon, which stretches to the Town of Estes Park, Colorado, was taken the day after the September 2013 flood’s peak. Since the crisis unfolded, Ayres has provided emergency, post-flood support to the cities of Fort Collins and Loveland, including high-water-mark readings, field engineering, and bank protection. Ayres also helped protect one of the City of Loveland’s main water lines and provided river engineering support within the Colorado Department of Transportation’s Incident Command Center, or ICC. One year later, recovery efforts are still very much under way. Alvarado and Ayres geomorphologist Bill Spitz served as members of the ICC’s permanent assessment teams, charged with visiting the damaged sites, evaluating the emergency repairs, and identifying permanent solutions – work that kept them busy until mid-January. The Ayres team has also immersed itself in work for Weld County, Colorado. Five bridge sites along the Big and Little Thompson rivers needed repairs prior to spring runoff to avoid additional damage, and the team assisted with the associated repairs and recommendations. Alvarado has been managing the Weld County work. TRENDS │17