Design & Construction Policies

Update: As of January 1st, 2025 we will be amending our water meter sizing standards to more closely align with the 2023 Oregon Plumbing Specialty Code.  Fixture unit loading values will not change from previous evaluation methods, but the determination of minimum size requirements will now be based off of the full scope of Table 610.4.   Meter and Building supply sizing will be based directly off of the respective columns, as written in table 610.4.  This change is being made to ensure that we are fully in compliance with the 2023 Oregon Plumbing Specialty Code.

Water Meter Sizing Guidelines

The City of West Linn has adopted the following Public Works Standards to regulate all public infrastructure improvements constructed within city limits. Section 3.300 of the City's Municipal Code gives the City Engineer the authority and responsibility to enforce and amend the Public Works Standards. All referenced standards and specifications are deemed current as of January 1, 2022.

All construction design detail, workmanship, and materials shall be in accordance with the current edition of the Oregon Department of Transportation (ODOT) Oregon Standard Specifications for Construction and Standard Drawings and Details, except as otherwise provided by these City Design Standards (including City Standard Drawings and Details). The Oregon Standard Specifications can be found at https://www.oregon.gov/ODOT/Business/Pages/Standard_Specifications.aspx and the Oregon Standard Drawings and Details can be found at https://www.oregon.gov/ODOT/Engineering/Pages/Standards.aspx.

These Public Works Standards are divided into three components: Design Standards, Standard Construction Specifications, and Standard Drawings. The three components can be accessed individually using the links below. Please contact the Engineering Division of Public Works with any questions about these standards.