Daniel Way Creek Stabilization Project
The City is undertaking a stream channel stabilization project along Three Sisters Creek, adjacent to Daniel Way. There are areas of severe erosion along the banks of the creek and stream, and it has begun to undermine the curb along the road.
Scope and Schedule
The first phase of work involves survey, mapping, permitting and engineering design tasks. The data gathered from a detailed survey and mapping of the existing topography, utilities, trees and resource protection areas will inform the design and provide the information necessary for completing applications to the various agencies. Permits are required from Oregon Division of State Lands (DSL), US Army Corps of Engineers (ACOE), Oregon Department of Environmental Quality (DEQ), and the City of Lake Oswego.
Phase two of the project will involve applying for a tree removal permit and hiring a tree removal company to remove the trees. The tree removal is anticipated to occur in early 2024, prior to major construction starting.
The third phase of work will involve construction. This is expected to occur once construction bids are received and a contractor is selected, sometime in late spring/early summer 2024. The project will involve realigning a portion of the stream and planting new plants and trees to help stabilize the creek.
Per the DSL permit, any in-stream work will occur from July 15 – September 30, 2024. Some plantings will occur in spring 2025 due to the availability of the type of plantings.
What to Expect During Construction
Approved City work hours are 7 a.m. – 6 p.m., Monday to Friday, and 8 a.m. – 6 p.m. on Saturdays.
A certified arborist has assessed the health of all trees located within the project limits. A total of 69 trees are expected to be removed for the stabilization project. 60 are Type II (including 8 dead trees), and 9 are invasive. A tree removal application has been submitted, the trees have been flagged and the site has been posted. The tree removal application, including the arborist report, can be found here.
More than 150 trees and 1,000 shrubs will be planted back as part of the project improvements.
- During construction, there will be a full road closure for all through vehicles on Daniel Way, between Carman Drive and Kruse Way Place.
- Local access will be maintained for businesses, offices, residents and emergency responders in the closure zone.
- There will be no through vehicular access north of the Yakima parking lot and south of the Uplands Park Condos.
- Pedestrian access will remain open on the existing pathway.
This spring, a tree contractor is planning to begin removing 60+ trees along the east side of Daniel Way, between Carman Drive and the Yakima Parking Lot. These trees have been permitted for removal. Tree trimming will also occur along Carman Drive, between Fosberg Road and Touchstone.
During the tree removal work, a road closure will be in place for all through vehicles on Daniel Way, between Carman Drive and Kruse Way Place. Local access will be maintained for businesses, offices, residents and emergency responders in the closure zone.
Tree removal will be taking place prior to major construction work, which is expected to occur this summer through fall. Approximately 150 new trees and 1,000 shrubs will be planted back as part of the project improvements.
The project experienced some delays with permitting and easements, so construction of the project has been rescheduled to 2024.
The City plans to hire a tree removal company in early 2024 to remove the trees, prior to major construction taking place in spring/summer 2024.
Design is now complete. Permit applications have been submitted to Oregon Division of State lands (DSL), the Army Corps of Engineers (ACOE), Oregon Department of Environmental Quality (DEQ) and the City of Lake Oswego. The project advertised for construction and bids closed April 25. Council is expected to approve the contract with the preferred bidder in May. Construction is expected to start in June and continue through fall of 2023. Additional restoration and planting work is expected to take place in spring 2024.
This spring, surveyors, biologists and arborists will begin their field work. The design and permitting is expected to take place through early 2023.
Bidding and contractor selection will take place in the early spring of 2023 and the actual construction work will occur in the summer through fall of 2023, when in-stream work is allowed by the agencies.
In winter 2021/2022, through the Request for Proposal (RFP) process, the City selected an engineering team to begin the design and permitting work for the project.