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
Our Public Works Department diligently follows weather reports, monitors local weather stations and road conditions, prepares for, and is ready to respond to winter weather events.
Watch this video to learn how our Public Works staff prepares for the winter season and weather events. For the most up-to-date information, visit our winter weather alerts page or follow our social media accounts.
Read on to learn helpful tips on how you can get prepared, safe driving trips, and FAQs!
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 this winter when it is dreary outside? 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!
The City sweeps every neighborhood on a regular rotation using our main sweepers, Oscar and Sweep Caroline. They work zone by zone, Monday through Friday, and some weekends. While they can sweep the whole city in about a week during spring and summer, fall and winter take longer due to heavy leaf and pine needle buildup. Thank you for your patience as crews make their way through each zone.
You can help sweeping be more efficient by keeping leaves and yard debris out of the street. Please do not rake, blow, or pile leaves into the roadway, as this clogs and damages equipment and is also against City code.
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.
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.
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.
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