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Offices Closed for Thanksgiving Holiday: All county offices will be closed on Thursday, Nov. 23, and Friday, Nov. 24, for the holiday. This includes parks offices, public works, courts and all other administrative offices. Offices will re-open Monday, Nov. 27.

Full Depth Reclamation

Full Depth Reclamation (FDR) is a process that rebuilds failed asphalt pavements by recycling the existing roads. Existing asphalt and base materials are pulverized, rejuvenated and compacted to produce a strong, durable base material for a new roadway. There is no need to transport new material to the project site or haul away old material for disposal. A specialized piece of equipment called a Reclaimer uses a reinforced rotating milling drum to grind and mix the existing pavement and sub-base. The benefits of FDR are many including:

  • Reclaimed roads have more stable bases, can support heavier loads and last longer with lower maintenance costs.
  • Eliminates the need to transport material preserving substantial amounts of diesel fuel and man hours. 
  • Allows for the complete reconstruction of the pavement with little or no excavation and removal costs.
  • Allows for the reuse of all existing material which reduces overall project costs.
  • Reclamation is efficient; construction of roadway is completed much faster.
  •  FDR is environmentally friendly. Materials are recycled which requires little or no dumping of waste materials.

The explosive growth Collin County has experienced over the last decade along with the increased vehicular traffic convinced PW staff to investigate advanced, proven technologies for maintaining and rehabilitating asphalt roads.

A thorough analysis in early 2011 revealed that Full Depth Reclamation was the best process, offering  numerous benefits, including a superior final product and cost efficiency in terms of material and man-hours. In late 2011, Public Works acquired the equipment necessary to conduct FDR operations and is actively pursuing plans to rehabilitate several miles of distressed pavement each year.

CBS DFW: Collin County Invests In Mixer To Help Pave Damaged Roads

Full Depth Reclamation 

Full Depth Reclamation Illustration