The core purpose of the Engineering Division is to provide quality engineering services for the City of Lake Oswego consistent with environmental values, safety standards and the needs of the community.
The Engineering Division manages the design and
construction of the City's infrastructure, including surface water, water, wastewater collection, and transportation. In addition, the Engineering Division provides technical support for the Willamette Shore Trolley, oversees the Water Treatment Plant and provides GIS mapping services. Read more...
Click on the links below to find out what is happening around the City.
WO #139-2010 Street Preservation
Project - Slurry Seal
This project consists of preventative maintenance on existing local streets, within the City of Lake Oswego including structural street repairs, crack sealing, slurry seal, and pavement markings.
Work begins Thursday, July 15th, and will continue through July 23rd.
For questions contact the Construction Hotline
at 503.635.0261 or Crystal M. Shum at 503.697.7420.
The Proposed Capital Improvement Plan
FY 2010/11-2014/15 will be presented to City Council to be considered for adoption
on July 6, 2010.
Capital Improvement Plan
FY 2009/10-2013/14

Click on the image to view document.
MS4 Permit Renewal
Please visit this site to review the City
Phase 1 MS4 NPDES permit renewal package
Traffic Count Program
It's that time of year again when the City conducts its annual traffic counts.
Read more...

Clean Streams Plan

Water quality infiltration planter bed on
Middlecrest Road
The Clean Streams Plan has been modified after receiving public comment and is available at the
the link below:
2009 Clean Streams Plan
Clean Stream Plan Appendices
For more information about the
Cleans Stream Plan Update and upcoming related events click here
National Flood Insurance Program
Click here to view the new Flood Insurance Study (FIS) and Flood Insurance Rate Maps.
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The Lake Oswego Interceptor Sewer (LOIS) lies below the surface of Oswego Lake. Construction is currently underway to replace the LOIS system to correct deficiencies in wet weather capacity and earthquake resistance.
read more... |
Lake Oswego and Tigard Water
Supply Partnership
An Agreement between the City of Lake Oswego
and the City of Tigard was adopted
on August 5, 2008.
City of Lake Oswego/Tigard Water SupplyPartnership Agreement - Final
Since early 2006, the City's of Lake Oswego and Tigard have been studying the idea of becoming partners in developing a joint water supply system to serve both communities. read more...
To view the project website, click here.