In August 2016, a U.S. Postal Service truck was making its rounds in Albuquerque, New Mexico, near the intersection of Barelas Road and Marquez Lane when the driver abruptly slammed on the brakes. Ahead, a sinkhole had opened in the narrow street.
Authorities at Albuquerque Bernalillo County Water Utility Authority were called and found that a breech had developed in the crown of a 60-inch interceptor pipe. Wet, silty soil had dribbled into the pipe through the hole, to be carried away by effluent. Over time, much of the surrounding alluvial soil followed, disappearing into the pipe and creating a huge
