Public Works Standards

    • Contractors bidding on public works projects are required to own a current edition of the City's Public Works Standards before being awarded a contract.  
    • The Public Works Standards govern the construction of both privately financed public improvements and the City's capital improvement projects.
    • All contractors awarded a contract are required to have a hard-copy of the Public Works Standards on-hand at the construction site.
  • To order current Public Works Standards

    • Print the document sections listed below.
    • Order a booklet and CD; cost: $75.
    • Order a CD; cost: $25.
    • A booklet or CD can be purchased from the City's Department of Environmental Services.
    • Questions? Call 503-618-2525.

    Public Works Standards have four sections

    1. Standard detail drawings:The standard detail drawings  are illustrations of commonly required infrastructure components such as manholes, catchbasins, curbs, and sidewalks.    
    2. Construction specifications: The construction specifications contain requirements for the assembly of infrastructure and for required materials. 
    3. Design standards: The design standards provide guidance for the City's requirements for designing infrastructure including guidance for minimum pipe sizing, minimum distances between manholes and catchbasins, and maximum street grades. 
    4. Erosion prevention and sediment control (EPSC) manual:The EPSC manual contains specifications for reducing or eliminating pollutants from entering the City's stormwater and ground water, especially related to construction activities. The manual includes both devices and methods of installation (deemed Best Management Practices) for controlling pollution reduction.

    Public Works Standards update

    The Public Works Standards have not been updated since 2011. 

    Learn more about proposed changes.