TPW Roads

2020 Pavement Preservation Program – Seals Projects (M20201)

Project Description

This project will consist of multiple treatment applications including: Double Chip Seal, Slurry Seal, Microsurfacing and Cape Seal treatments as well as associated flagging, traffic control, crack sealing, cross culvert replacement, ditch cleaning, pavement delineation, signage, and replacement of asphalt concrete surfacing (digouts).

About the Treatments

The Double Chip Seal treatment process consists of the application of asphalt emulsion or binder on existing traveled way pavement, followed by one layer of aggregate chips, which are embedded into the asphaltic emulsion or binder. This process is then repeated for a second layer of binder and aggregate. Finally, a seal coat is applied from edge of pavement to edge of pavement.

The Slurry Seal treatment is the application of a mixture of asphalt emulsion, water, well-graded fine aggregate, and mineral filler that has a fluid like appearance when applied. This treatment is applied from edge of pavement to edge of pavement.

The Microsurfacing treatment is similar to slurry seal. It consists of the application of a mixture of water, asphalt emulsion, aggregate (very small crushed rock), and chemical additives to an existing asphalt concrete pavement surface from edge of pavement to edge of pavement.

The Cape Seal treatment includes the chip seal (or scrub seal) treatment followed by the slurry seal treatment for the finished surface. The scrub seal is a chip seal in which the asphalt emulsion bottom layer is placed using brooms and then aggregate chips are embedded.

Project Locations

A double chip seal will be used on the following roads:

  • Chiquita Rd. from City of Healdsburg to Lytton Springs Rd. (1.39 miles
  • Riebli Rd. from Santa Rosa city limits to Post Mile 10.97    (0.95 miles)
    Subtotal: 2.34 miles

A slurry seal treatment will be used on the following roads:

  • Remmell Rd. from Walden to Hwy. 128  (0.12 miles)
  • High School Rd. from Sebastopol city limits to Occidental Rd. (1.29 miles)
  • Old Redwood from Pacific Heights to Airport Blvd.  (1.18 miles)
    Subtotal: 2.59 miles


Microsurfacing will be performed on the following roads:

  • Adobe Rd. from Old Redwood Hwy. N. to Corona Rd.  (2.17 miles)
  • Porter Creek from Postwood Ln. to Petrified Forest   (2.19 miles)
  • Stony Point from Scenic Ave. to Bellevue Ave.   (1.76 miles)
    Subtotal: 6.12 miles


A cape seal treatment will be used on the following roads:

  • Ascot Dr. from Mayfield Dr. to Old Redwood Hwy.   (0.27 miles)
  • Bosch St. from Hwy. 128 to Remmell Rd.   (0.09 miles)
  • Center St. from Remmell Rd. to Merrill St.  (0.08 miles)
  • Crowell St. from Hwy. 128 to Remmell Rd.  (0.08 miles)
  • Devon Ct. from Mayfield Dr. to end   (0.05 miles)
  • Eton Ct. from Mayfield Dr. to end   (0.14 miles)
  • Fairlie Dr. from Ascot Dr. to Ascot Dr.  (0.17 miles)
  • Mayfield Dr. from Lavell Rd. to Devon Ct.  (0.29 miles)
  • Merrill St. from Hwy. 128 to end of pavement  (0.13 miles)
  • Minnie St. from Feldmever Ave. to Hwy. 128  (0.07 miles)
  • Railroad Ave. from Hwy 128 to end of pavement  (0.56 miles)
  • Remmell St. from Hwy. 128 to Center St.   (0.05 miles)
  • Walden Ave. from Hwy. to Remmell Rd.  (0.08 miles)
  • Woods Ln. from Hwy. 128 to Railroad Ave.  (0.17 miles)
  • Lorraine Way from Michele Way to Co. line   (0.32 miles)
  • Michele Way from Mark West Springs Rd. to Co. line  (0.54 miles)
    Subtotal: 3.09 miles


    Project Miles: 14.14 miles


    Exhibit A_M20201 (PDF Document)

Award status for County Project No. M20101

Bid Opening Date: 3/3/2020

 MilestoneActionDateDocuments
Bid ResultsPosted3/3/20 M20201 - Bid Results
Bid TabulationPosted3/3/20 M20201 - Bid Tab
Notice of Intent to AwardPosted3/5/20 M20201 - Notice of Intent to Award
 ...
Submitted Bid Books (ranked)Posted3/3/20
Bid Book- Team Ghilotti Proposal
Bid Book - VSS International, Inc. Proposal
Bid Book - Northwest Paving Inc. Proposal
Bid Book- Argonaut Construction Proposal

Contact Information

Business Hours
Monday – Friday
8:00 AM – 5:00 PM

By Appointment Only.  Responding 24x7 to Emergencies.

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

75x75_BluePrints1

Standard plans for construction of roads and related structures.