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Traffic Engineering and Transportation
The Lake Oswego Transportation System includes more than 178 miles of streets, 32 traffic signals, 12.0 miles of pedestrian pathways, and shared ownership of the Jefferson Street Rail Line (aka Willamette Shoreline Trolley) within the city limits. The streets are classified as major and minor arterials, major collectors, neighborhood collectors, and local streets; traffic counts are available on line.
The City’s Transportation System Plan (TSP) provides a plan for the development of the City’s transportation infrastructure. Specific projects are further developed as resources become available. The TSP includes elements for roadways, bike, pedestrian, transit and rail related improvements.
Concerns, comments and questions regarding traffic related matters can be sent to firstname.lastname@example.org, and a staff person will respond. Make sure to include your contact information if you would like a response. For more information, please contact the Engineering Department at 503-635-0270.
All construction activities within the public right-of-way require an approved traffic control permit from the City of Lake Oswego. There is no fee for a traffic control permit.
The purpose of Neighborhood Traffic Management Program is to give citizens greater participation in decisions regarding traffic management on neighborhood streets in order to promote the safety and livability of residential neighborhoods.
Average Daily Traffic count information for most of Lake Oswego's major streets and some of our local streets is available online.
The City of Lake Oswego’s transportation system plan (TSP) is an important document for long-range planning purposes as well as a tool for current developments. It provides a snapshot of the existing system, immediate changes, and future plans into year 2035.
Flashing Yellow Arrow signals are the new standard for permissive left turn movements. A permissive turn is one that can be made through gaps in oncoming traffic.
System development charges are fees paid by new development to recover a portion of the cost of existing infrastructure and to help fund new infrastructure.
Take a trolley ride - learn about the Willamette Shore Line’s historic past while enjoying a relaxing ride along the shore of the Willamette River. This scenic 10.5-mile roundtrip ride runs from Lake Oswego to Bancroft Street in SW Portland and features spectacular views plus several unique railroad attractions.