Annual Roads Preservation Program

Project Updates

  • The 2022 Annual Roads program work is in the design phase. Project is planned to go out to bid early 2022. 
  • 2021 Annual roads work was completed fall 2021. 

Project Overview

The City of Bainbridge Island maintains a 140-mile road network. Each year, the City invests an average of $650,000 to preserve and protect island roads. The budget includes $400,000 from Transportation Benefit Fund (TBF or car-tab fees) revenues, and the remainder is supported by the City’s Street Fund.

The 2022 road work will include grinding and patching (see list of locations on the map above). This technique provides a long-term fix for uneven pavement or other defects in the road and creates a smoother surface for driving. The pavement mix that will be used includes a mix of new and recycled on-site materials that meet Washington State Department of Transportation requirements for mix design.

Road Assessment
The City uses a Pavement Condition Index (PCI) and traffic volumes to rate the conditions of the road network and to determine where road maintenance will happen. The PCI ranks the overall health of a pavement segment on a scale of 0 to 100 (0 represents a failed street; 100 represents a new street). The PCI rating is determined by a visual inspection of pavement condition, age, and distress.

The City wants to maintain an average PCI score of 70, which is a condition in line with best management practices. As of May 2020, our average score was 62. The current score reflects the fact that many of our high-volume roads are in good shape, but many smaller low-traffic roads are in need of repairs. The City strives to keep the higher-volume roads from deteriorating while addressing smaller roads—and the associated neighborhood concerns— over the long-term.

The 2022 program will focus on smaller roads with a pavement score of less than 25. The City’s last pavement condition report recommended spending a minimum of $1 million annually on pavement preservation.

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