• AC Overlay 1

Pavement Preservation Program - 2017 Rehabilitation of Various Streets

Project # C14040

Project Description

Placement of an asphalt concrete overlay, full depth reclamation and cold in-place recycling on sections of Bodega Highway, D Street, River Road, and Windsor River Road. More details are listed in the following sections.

Project Locations

  • BODEGA HWY, from Sexton Road to Sebastopol City Limit (Road ID 6904, from postmile 17.30 to 19.26)
  • D STREET, from the Marin County Line to just south of the Petaluma City Limit (Road ID 4701, from postmile 10.00 to 12.24)
  • RIVER ROAD, from the railroad tracks in Fulton to just past the Highway 101 southbound on ramp (Road ID 8802B, from postmile 24.60 to 25.34)
  • WINDSOR RIVER ROAD, from Eastside Road to the Windsor City Limit (Road ID 8903, from Postmile 10.00 to 10.65)

Treatment Types

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.

Cold-In-Place Recycling (CIPR)

Cold-in-Place (CIR) recycling is a method of removing and reusing the existing asphalt surface. It involves grinding off the top 2 to 5 inches of the existing asphalt surface and mixing the crushed asphalt with an asphalt recycling agent, and placing it back down with a paver.

Full-Depth Reclamation (FDR)

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.

More about road pavement techniques

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.