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SW College Street Sewer Extension Project

Sewer and Stormwater
Active
Environmental Services is designing a project to install approximately 160 feet of public sewer pipe on SW College Street west of SW 16th Avenue. This work is part of the City’s ongoing effort to extend the sewer system to properties without direct access to the public sewer.
Project is currently in design and will not begin construction until late 2025 or early 2026.
Project area simplified map for SW College St Sewer Extension Project

Soil Investigations

Late January and through February 2025, crews will take a variety of measurements to determine public right-of-way boundaries, private property lines, public sewer easement boundaries, the presence of utility vaults and other landmarks, and other necessary measurements. 

To avoid damaging any utilities underground, it is necessary to locate and mark where they are located. Crews paint markings on the street in different colors or place small flags in the ground to indicate the presence of underground utilities. You may see paint markings or flags during difference phases of the project. Please keep them in place and do not remove them. 

Crews will be investigating underground conditions. They will drill holes in the street and side of the road to take soil samples. What the engineers learn from the analysis of soil, rock, and pavement samples will help them determine construction methods and locations.

Sign Up for Updates

Sign up for periodic email or text message updates for the SW 16th and College Sewer Project through our free GovDelivery subscription service. These updates are the best way to stay informed about what’s happening and what to expect. You can also sign up for bulletins on other projects and topics. 


This project will help protect the health of the Willamette River Watershed.


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