• AC Overlay 1

2018 Pavement Preservation Program – Full Depth Reclamation and Overlays

Project # C18004

Status: Complete

Project Description

The work to be done consists, in general, of full depth reclamation of various County roads and/or placement of an asphalt concrete overlay on various County Roads, together with associated flagging, metal beam guard rail, traffic control and preparation required to construct the work, repairing pavement structural section, cold planning, shoulder backing along with delineation of the new pavement surface, and such other items or details, not mentioned above, that are required by the Standard Specifications, or these Special Provisions will be performed, placed, constructed
or installed.

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Project Locations

Full-Depth Reclamation

  • EASTMAN LANE, from Chapman Lane to Bodega Avenue 
  • EUCALYPTUS AVENUE,  from Middle Two Rock Road to Bodega Avenue
  • LAUGHLIN ROAD, from Slusser Road to North Laughlin Road

Asphalt Concrete Overlay

  • CRANE CANYON ROAD, from Inverness Avenue to Grange Road
  • GRANGE ROAD, from Crane Canyon Road to Guenza Road
  • LYNCH ROAD, from Adobe Road to Hardin Lane
  • MIDDLE TWO ROCK ROAD, from Eucalyptus Avenue to Bodega Avenue
  • SONOMA MOUNTAIN ROAD, from Pressley Road to Postmile 23.15

About the Treatment Types

Full-Depth Reclamation

Full-Depth Reclamation is a type of complete road reconstruction where the old pavement and base materials are not removed. Instead, they are processed on-site. During this process, the old materials are pulverized, mixed, and treated with a stabilizing agent (such as cement or asphalt emulsion) to produce a like-new road base. Typically, the roadway is then re-surfaced with an overlay of new asphalt. There’s no need to haul in aggregate or haul out old material for disposal. Truck traffic is reduced, and there is little or no waste. Due to reduced transportation, costs far less than the conventional approach to reconstruction. Can provide up to 30 years of additional life.

Asphalt Concrete Overlay

Asphalt Concrete (AC) consists of mineral aggregate bound together with asphalt, laid in layers, and compacted. The most common type used on streets and highways is Hot Mix Asphalt (commonly abbreviated as HMA). Hot Mix Asphalt Overlay is regarded by most road departments as a standard for road maintenance and restoration, and has been for several decades. It produces durable, long-lasting results, and can increase pavement life by 15 years or more. Combined with other processes, such as milling or grinding of old pavement, an AC overlay can transform a tattered road surface into a like-new condition.

See more information about pavement treatments

Contact Information

Business Hours
Monday – Friday
8:00 AM – 5:00 PM
Contact us by Phone
Office Location
La Plaza B
2300 County Center Drive
Suite B 100
Santa Rosa, CA 95403
38.462023, -122.725381

Standard Plans

Construction Standards for County Roads


Standard plans for construction of roads and related structures.