Avenue M / Quartz Hill Road – Pavement Rehabilitation

The County of Los Angeles Department of Public Works in cooperation with the City of Lancaster completed a pavement rehabilitation project on a 6 mile stretch of Avenue M / Quartz Hill Road from 60th Street West to the Antelope Valley Freeway in October 2015. Several sections along this roadway were continuously generating potholes and complaints from the public. Maintenance crews were continually patching and repatching the roadway at significant cost to each organization. As funding for this project was of concern to both the County and City, as neither had included it within their fiscal year budgets, it was decided to do the most appropriate least cost treatment for the various sections of the road. The deterioration of the roadway was evaluated by the County’s Geotechnical staff and the appropriate treatments identified for a total of 1,091,600 square feet of pavement (County-57%, City-43%). Each jurisdiction provided the necessary prep work for the proposed treatment within their boundaries. Other agency involvement included the California Department of Transportation (CALTRANS) assisting with the closure of the on and off ramps of the Antelope Valley Freeway at Avenue M. The County then used their forces to perform the following work: • Cold mill with 2″ asphalt overlay – 208,100 square feet • Micro mill with double chip seal with fog seal – 65,300 square feet • Double chip seal with fog seal – 73,740 square feet • Chip seal with fog seal – 404,600 square feet • Fog seal only – 340,000 square feet The work was completed within 45 days to positive reviews from the public. The total cost of the work performed was $722,000 as compared to the estimated contract cost to resurface the entire roadway at $1,900,000. It is expected that this project successfully extended the pavement life of the roadway anywhere from 5 to 15 years depending on the treatment performed and has greatly reduced or eliminated the complaints from the public.