Like many historic districts, Old Town in Albuquerque, N.M., was struggling with its aging infrastructure. Hydrogen sulfide had eroded the reinforced concrete pipe, installed in the 1960s through the 1980s. When a sewer line collapsed, it often took a road with it.After 10 years of using local construction firm AUI Inc. to repair the interceptors, the Albuquerque Bernalillo County Water Utility Authority took preventive action and hired Keith Reed, P.E., of Boyle Engineering Corp. in Albuquerque to design the renovation of 3,424 feet of 48-inch sewer line. Capacity was a major concern, as the average flow is 11 mgd. The
