important alert
State closes I-5 southbound at Rose Quarter for 5 weeks starting Sept. 11

Plan for major delays. More at i5rosequarter.org. Visit Shift Your Trip to keep Portland moving.

informational alert
Portland is a Sanctuary City

Manufacturing Standards for Precast Concrete Products

Label: Manual
The Bureau of Environmental Services maintains the Manufacturing Standards for Precast Concrete Products manual. The manual covers the requirements for the manufacture of precast concrete pipe, maintenance holes, and inlets for use in City of Portland infrastructure projects.

Published: September 2022

Updated: August 2026

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