DPW ANNUAL RESURFACING PROGRAM ROAD TO 70 PCI

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• THE PROGRAM

  The Department of Public Works (DPW) goal is to identify the most effective means to properly maintain County roads and keep them safe and passable for residents and roadway users. Surface treatments can range from a simple slurry seal to a more significant removal and replacement of the entire asphalt surface.

  DPW values community input and encourages residents to participate in shaping the future of our roads. By sharing your concerns, suggestions, and priorities, you can help DPW identify immediate and long-range road resurfacing needs. DPW’s annual roadway resurfacing and construction program includes pavement management software, public input, operational needs, and available funding to implement projects throughout the unincorporated County. DPW ensures that service delivery and program design are equitable, focusing on consideration for underserved communities when planning for road resurfacing projects.  DPW’s pavement management program allows staff to focus maintenance resources on the best preventative maintenance measures and helps us to choose the most appropriate and cost-effective surface treatment, or resurfacing, to extend the service life of the pavement on 1,956.30 center line miles of the County’s publicly maintained roads.

  Centerline miles measures the length of a roadway, regardless of the number of lanes. Lane miles measures the total mileage of one lane. For example, a one lane road which is one mile long is one center line mile and one lane mile. However, a four-lane road which is one mile long is one centerline mile and four lanes miles. Our resurfacing program reports total centerline miles completed.

  Every year DPW receives funding from the state for resurfacing projects.  This funding is allocated proportionally across each supervisorial district relative to the district’s total mileage of roads in the County-maintained road system.   On May 2, 2017, the County Board of Supervisors (Board) directed staff to use the funding to pursue additional resurfacing projects and achieve a Pavement Condition Index (PCI), a commonly used pavement rating system, of 70 out of 100. At the start of our Program, our PCI was 60.  

  PCI is a measure of the pavement’s surface condition measuring distress type, quantity, and severity.  PCI is a numerical value or index between 0 and 100, newly paved roads will have a PCI of 100 (“Very Good”) whereas failed roads will have a PCI of 20 or lower (“Very Poor”).  The PCI is a commonly used rating system used by 51 Cities and Counties Statewide and has been adopted by the American Society for Testing Materials (ASTM D6433-20) as the standard practice for rating roadway pavement.

• CURRENT STATUS

  Each fiscal year, the resurfacing program develops a list of roads to be considered for treatment.  To-date, this program has programmed the resurfacing of approximately 950 centerline miles (49% of roads).  Table 1 below shows the total centerline mileage programmed for each year of our program (July 1 - June 30).  

  Table 1 - CENTERLINE MILES PROGRAMMED (July 1 - June 30)

  FY 17/18	FY18/19	FY 19/20	FY 20/21	FY 21/22	FY 22/23	FY 23/24	FY 24/25	Total
  154	131	143	95	104	103	120	100	950

  Table 2 provides a status summary of the centerline mileage of programmed roads delivered by calendar year (January 1 to December 31).  Completed projects are for roads where the construction has been completed and work has been accepted by the County.   Construction Ready are roads that have gone through the competative bid process and have contracts awarded.  Projects listed as in  Planning  or in Design  are road segments which are in various stages of planning or design.  The resurfacing date for these roads remains tentative and may change until a contract is actively in construction.   

  Table 2 - CENTERLINE MILES STATUS (January 1 to December 31)
  

  Year	2018	2019	2020	2021	2022	2023	2024	2025	2026	Total
  Completed	63	139	144	103	116	60	61	20	tbd	707
  Construction Ready							41		tbd	41
  Planned/In Design								190	tbd	190
  Total	63	139	144	103	116	60	102	210	-	938

  Discrepancies between total mileage shown on Table 1 and Table 2 are expected as projects are developed to accommodate changes in the market, project conflicts, or unforeseen circumstances. 

  Click here for the list of roads which have been awarded for construction and an estimated construction schedule.  Click here for the list of completed road resurfacing list which also includes roads subject to DPWs pavement cut policy.

• HOW ROADS ARE SELECTED

  DPW uses pavement management software, as well as input from road crews and the community, while ensuring that underserved communities are equitably represented, when developing our list of roads for resurfacing.  DPW must respond to unforeseen occurrences such as natural disasters, public safety emergencies, and other changes that could affect future project funding availability.  Unexpected changes in DPW’s program may be necessary to accommodate changing needs throughout the County.

  Pavement management software is used to track the estimated life expectancy of each road segment.  Road segments will degrade at different rates depending on environment, treatment history and vehicle usage.  Our software helps prioritize road segments to maximize resources and extend the service life of the road to the extent possible.  DPW road crews are responsible for the day-to-day operation and routine maintenance of our roads.  Crews help identify hot spots or road segments which may need additional attention due to a number of variables, including repeated service history and customer concerns.

  A significant component of our program is community outreach. To better understand community priorities, DPW solicits input from community planning and sponsor groups to assist in identifying road resurfacing needs specific to each community. The input received from the communities is used by staff to assist in the development of subsequent years of the program.  Additionally, DPW works to provide opportunities for all people and communities to grow, connect, and enjoy the highest quality of life.  The program considers strategies for underserved communities that provide equity throughout the unincorporated County.  In addition, DPW considers needs in areas that are outside a community/sponsor group and recommends resurfacing projects in those areas to meet the needs of the communities.

  Throughout the planning and construction process, DPW proactively coordinates with utility companies and adjacent cities to limit conflicts, minimize disruption to the public, maximize construction efficiency where feasible and to include roads from adjacent jurisdictions.  This effort will reduce premature damage to public roads through avoidable utility pavement cuts, will improve the service life and rideability of the pavement, and minimize impacts to road users.

• PROJECT LIFECYCLE

  The typical lifecycle for the program is 18 to 24 months to complete and includes three phases: Planning, Design and Construction.  During the Planning Phase, DPW staff incorporates input from pavement software, road crews and the community to develop our initial planned list.  The planned list is routed to the design team, where a preliminary scope of work and treatment approach for each road is reviewed.  This may also include repairs to curb and gutter and upgrades to culverts and federally mandated pedestrian ramps.  Once approved, CIP begins the Design Phase where the project scope is further refined.  Once approved, the Construction Phase begins.  Contracts out for competative bid are awarded based on funding and contractor availability.  Where possible, projects are grouped based on geographic region to minimize impacts to the community and residents.