Maintenance and Motor Pool
503-635-0280
Maintenance Center
17601 Pilkington Rd
Lake Oswego OR 97035
Water Treatment Plant
503-635-0394
Water Conservation
503-675-3747
Public Works
The Lake Oswego Public Works Department is responsible for maintaining infrastructure systems throughout the City to ensure they are working correctly, efficiently, and that the life of our assets is maximized. Streets, Water, Sewer, Stormwater, Motor Pool and City Beautification maintenance programs make up the department with each responsible for their own infrastructure system.
Here at Public Works, we take pride in providing utility maintenance to help make Lake Oswego a great place to live.
News & Announcements
Interested in learning more about your drinking water? Take a behind-the-scenes tour of the Lake Oswego-Tigard Water Treatment Plant, located in West Linn!
Tours are held about once a month between spring and summer, take approximately 1 ½ hours and are limited to 15 people per tour.
We want your help in making community streets a safer and more comfortable place. While staff work diligently on addressing issues that are spotted, we understand that we can’t catch everything. If you have a concern related to traffic, please use this form to report issues
Proper disposal of fats, oils and grease protects your home, business, public health, and the environment.
Looking for a fun and educational activity for kids to enjoy? Pick up our FREE bilingual stormwater coloring book—available online or in person at City Hall, the Library, and LORAC! Participate and get a free sticker!
There is no such thing as a flushable wipe – even the ones that say flushable. “Flushable” wipes cause serious damage to sewer systems and homes because they don’t break down or dissolve, clogging sewer pipes, damaging equipment, and causing expensive repairs for homeowners and our public sewer system.
Do not flush wipes! The only items that should be flushed down the toilet are toilet paper and human waste. Other items, like wipes, should be thrown in the trash.
Clean drinking water is an essential resource we rely on every day. Providing residents and businesses in Lake Oswego with safe, dependable, high-quality water is our top priority.
Lake Oswego’s tap water meets or exceeds every State and Federal standard for safe drinking water. Get to know your drinking water by reviewing the latest 2025 Water Quality Report.
No events found.
Key Documents and Reports
Forms, Permits, and Applications