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Street Maintenance 101

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Street Maintenance 101
Streets in good to excellent condition are characterized as having good riding quality, drainage, and appearance. The total annual maintenance investment is four to five time less following preventative maintenance strategy than if streets were allowed to deteriorate to poor and failed conditions requiring major rehabilitation.

Pavement Minor Maintenance Treatments
The Tigard Public Works Street Maintenance Division is responsible for the maintenance of 148 miles of paved streets, 1 mile of gravel streets, maintenance of street and traffic signs, installation and maintenance of guardrails and barricades, crack sealing, and patching street surfaces, maintenance of off-street bicycle paths and installation and marking.

Pavement Major Maintenance Treatments
There are four main pavement maintenance treatments commonly used on city streets:

Slurry Seal - Typically used on good residential streets to keep them in good condition
Asphalt Overlay - Often used as regular maintenance on busy streets, or to repair fair/poor residential streets
Major Overlay - Often used on busy streets that have deteriorated into poor condition
Street Reconstruction - Typically done only when a street's condition is very poor

For more information about each type of maintenance treatment, please click here.

Right-of-Way Maintenance
The City of Tigard currently hires a contractor annually to mow roadside grass and brush to maintain clear vision areas and minimize fire and complaint activity. The City also provides debris cleanup on an as-needed basis in these areas. The City trims trees annually to ensure street lights are functioning property. Also included in right-of-way maintenance is the maintenance of guard rails, delineators barricades, and street trees. This maintenance is currently funded by the Tigard Public Works Department operating budget.

Street Lights
Tigard's electricity bill for traffic signals and street lights is about $500,000 per year. It costs approximately an additional $100,000 per year to maintain the system (replace burned-out lights, make repairs, fix damage, etc.). These are paid for with gas tax funds.

Sidewalks
It is up to property owners to maintain the sidewalks in adjacent to their property. The City maintains sidewalks adjacent to City properties using funds from the Public Works Street Maintenance Division operating budget.

Tigard Street Maintenance Update

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