Street Preservation

The City currently has two street preservation programs used for maintaining the street network in Auburn: the Arterial Preservation Program and the Local Street Preservation Program.  The Arterial Preservation Program is responsible for maintaining the overall condition of approximately 103 centerline miles of Arterial and Collector roadways that are vital to our City. These roads carry the vast majority of our citizens, goods and services to and from our regional growth center and connect our communities to the greater Puget Sound Region. 

The Local Street Preservation Program is responsible for maintaining the pavement on approximately 146 centerline miles (292 lane miles) of roadways throughout the City.  Each year that number grows with the construction of property development projects.  The Local Street Preservation Program, was formerly known as the “Save Our Streets Program”, the program focused on preserving streets that were in fair condition.  For the last several years, the Local Street Preservation Program has focused on reconstructing streets in very poor to failed condition.

Arterial & Collector Street Preservation Program

The Arterial Street Preservation Program has focused almost exclusively on preservation treatments given the lack of funding to complete much needed major reconstruction projects. The goal of the Arterial Preservation program is to improve the Arterial and Collector network to an average pavement condition index (PCI) of 70 (out of 100 scale rating).  The current condition of the Arterial and Collector roadway network is in fair condition (PCI Rating of 61).  Over the next several years, the City has secured federal grant funding for several preservation projects, which will help leverage existing City funds to better improve the health of the arterial street system.

The currently funded 2016 through 2020 Arterial Street preservation projects are shown on the attached map:

Planned Arterial and Collector Projects - 2016 to 2020 (PDF)

In addition, pavement on arterial and collector streets often gets repaired by developer and utility projects. Since these projects often have to disturb the existing pavement to install new infrastructure, however the associated pavement repair work on these projects is generally not a part of the preservation program and is not reflected in our maps of recent Projects shown below:

2019 Citywide Patch and Overlay Project (PDF)
2018 Citywide Patch & Overlay Project (PDF)
2018 Citywide Crackseal Project (PDF)
2016 – 2017 B Street NW Reconstruction Project (PDF)
2015 Citywide Patch and Overlay Project (PDF)
2014 Citywide Patch and Overlay Project (PDF)

Local Street Preservation

At the outset of the program, the focus was on preserving the existing streets that were in serviceable condition. Over the last several years, with significant progress having been made on those roads, the focus was SOSable to include rebuilding the streets that are in the worst condition in addition to preserving local streets that are in fair condition.  Since 2009, after making significant progress on these roads, the City refocused the program to rebuilding streets that were in very poor to failing condition. The goal of the Local Street Preservation Program is to improve the Local Street system to an average PCI rating of 70 (out of 100 scale rating). 

The City regularly inspects the pavement condition of every street in our jurisdiction. The streets are rated based on the condition of the pavement, the depth of rutting in the wheel paths, drainage or ponding issues, and the roughness of the ride of each street. The data is maintained in our Pavement Management System database, and is used to inform our decisions on which streets to include in a project each year.

The City considers many different factors in selecting the streets to be included in the program annually. We use our pavement rating data to narrow down the list of candidate streets to be included in a project. Once we have a short list of streets to consider, we perform site inspections on each of the streets to validate our pavement rating data, and determine the scope of a potential project street. Next we review the existing City owned utility infrastructure under each street to determine if the water, sewer, or storm drainage lines need to be replaced due to age, condition, or a planned need to upgrade the system. If it is determined that a utility needs to be replaced, then another important factor is the availability of utility funds to pay for the associated utility replacement work. Other important factors that we consider in street selection are the amount of maintenance work that a particular street requires, the number of residents that are served by a particular roadway, coordination with private utility work, and coordination with private development work.

More detailed information about the SOS Program can be found at the report links below or if you have specific questions or comments you can call Public Works at 253-931-3010.

State of Our Streets Reports

Save Our Street Year End Report