Minnesota Department of Transportation
Ultra-thin bonded wearing course (UTBWC) pavement treatment was introduced to Minnesota in 1999. This technique, in which hot mix asphalt (HMA) is laid over a heavy asphalt emulsion layer or membrane, can be used as a preventive maintenance option or surface rehabilitation technique. One of the first highways to be overlaid with UTBWC was US-169 near Princeton.
City or Township
Object File Name