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2019 Pavement Preservation Program - Full Depth Reclamation and Overlays

Paving Truck 1

Project # C19600

Status: Complete

Project Description

This project includes pavement resurfacing of various county roadways using Full Depth Reclamation, Asphalt Concrete Overlays, and Remove and Replace, as described below. Other work consists of, as needed, adjusting utility covers, replacing signal loops and pedestrian crossings, replacement of guard rails, applying striping, installing delineators, installing ADA improvements (including curb ramp retrofits and detectable warning surfaces) where necessary, installing new shoulder backing, and asphalt dikes. Failing cross culverts will be replaced where necessary, and minor ditch cleaning will also be conducted.  Tree trimming may be necessary to allow for the installation of the new guard rail. Minor clearing and grubbing at the edge of pavement will be performed as needed.  Bicycle demarcations and Share the Road signs will be installed where applicable, as requested by the Sonoma County Bicycle and Pedestrian Advisory Committee.  No night work is proposed, however, detour routes may be utilized as needed.

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About the Treatment Types

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.

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.


Project Locations:


  • Agua Caliente Rd - Bridge (Sonoma Creek) to Hwy 12
  • Cazadero Hwy - Austin Creek Rd to Town of Cazadero
  • Dechene Ave - Dead End to Northside Ave
  • East Robles Avenue - Santa Rosa Ave to Brooks Ave
  • Greger St - Boyes Blvd to Lichtenberg Ave
  • Jonive Rd - Bodega Hwy to Occidental Rd
  • Lichtenberg Ave - Dechene Ave to Hwy 12
  • Trinity Rd - Hwy 12 to Margie Lane
  • Verano Avenue - Bridge (Sonoma Creek) to Main St
  • Agua Caliente Road - Hwy 12 (East) to Park Ave
  • Riverside Dr - Craig Ave to Boyes Blvd

Full Depth Reclamation

  • Cleveland Lane - Western Ave to Bodega Ave
  • Green Hill Rd - Occidental Rd to Graton Rd - County Crews
  • Green Valley Rd - Sullivan Rd to Hwy 116
  • Laughlin Road - Slusser Rd to North Laughlin Rd
  • Pleasant Hill Rd - Lynch Rd north to City Limits (Sebastopol)
  • Willowside Road - Guerneville Rd to Piner Rd