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SW Capitol Highway - Multnomah Village to West Portland Project

Under Construction
Sidewalks, bike lanes, stormwater management, and water system upgrades along SW Capitol Highway between SW Multnomah Boulevard and SW Taylors Ferry Road and some nearby streets.
Construction from June 2021 to December 2022
Location Description
SW Capitol Highway between SW Garden Home Road and SW Taylors Ferry Road and vicinity
Businesses Affected
Residences Affected
On this Page
SW Capitol Hwy joint partners logos

What's Happening Now

Construction Update:

The City of Portland's contractor Landis & Landis Construction, LLC began major construction work on June 14, 2021 along SW Capitol Highway. A detour of southbound traffic began on August 18, 2021 and will last through fall 2022. See our FAQ page about the detour. The project is scheduled to be complete in December 2022. Inclement weather, material shortages, illness, and/or labor shortages could affect the schedule.

Construction of a retaining wall on Southwest Capitol Highway
The southernmost retaining wall on the SW Capitol Highway project had its footing poured.

Construction Over the Past Three Weeks (December 20 - January 7)

  • A Water Bureau crew performed the second day of valve work on SW Capitol Highway between Garden Home Road and Carson Street on December 20.
  • Several retaining walls were backfilled along SW Capitol Highway.
  • Construction crews took a holiday break December 24 to January 2, which happened to coincide with winter weather.
  • On January 3 work began on the southernmost retaining wall, in the 9400 block of SW Capitol Highway (image at right).
  • Retaining wall work continued at the Multnomah-South stormwater facility.
  • Crews finished the water main installation in SW Capitol Highway between Garden Home Road and Carson Street.
  • PBOT Right-of-Way staff have been corresponding with certain property owners regarding time extensions for the temporary construction easements. Some of these easements expire this month, due to a one-year delay earlier in the project.

Work Planned for the Next Two Weeks (January 10-21)

  • The new water main in SW Capitol Highway between Garden Home Road and Carson Street will be pressure-tested and sanitized the week of January 10.
  • Starting Tuesday, January 18, Water Bureau crews will start hooking up homes to the new main, involving water shutoffs lasting a few hours. Affected residents (SW Capitol Highway between Garden Home and Carson) will receive notices three days in advance.
  • Tuesday through Friday, January 11 to 14, daytime paving is planned at SW 40th Avenue and SW Multnomah Boulevard, depending on weather conditions.
  • Work will continue on the retaining walls in the 9400 block of SW Capitol Highway, including completion of the southernmost wall, and breaking ground on the next wall to the north.
  • Retaining wall work will continue at the Multnomah South stormwater facility.
  • Minor property frontage work will continue sporadically on SW Capitol Highway.

Traffic and Trail Impacts:

  • SW 40th Avenue at Multnomah Boulevard will see flagging Tuesday through Thursday, January 11 to 13. Expect short delays.
  • On Friday, January 14, SW 40th Avenue will be completely closed between the Post Office and Multnomah Boulevard. All traffic will need to use SW Troy Street.
  • The southbound detour of SW Capitol Highway that has been in place since August will remain unchanged.
  • Southbound travel on the SW Capitol Highway viaduct over SW Multnomah Boulevard, and westbound travel on SW Garden Home Road between 40th and Capitol, including TriMet buses, will be detoured during work hours for two days during this period for water work. Northbound travel on the viaduct and eastbound travel on SW Garden Home Road will be maintained.

Looking Ahead

  • Water Bureau crews will continue hooking up homes to the new water main through the end of January.
  • The SW Multnomah / 40th traffic signal will see modifications the week of January 24, with some flagging and delays expected.
  • Work will begin at the Multnomah-North stormwater facility later in January, while Multnomah-South continues construction.
  • Retaining walls in the 9400 block of SW Capitol Highway should be mostly complete by the end of January.
  • Inclement weather, material shortages, illness, and/or labor shortages could affect the schedule.

Virtual Open Houses:

A live presentation and Q&A session took place on Zoom the evening of Thursday, June 10th, 2021. You can watch the video here.

A separate, self-guided open house featuring an interactive map covering the construction schedule and project details is available here:

 Construction news and project updates

Project Description

Below is a map of the main features of the project. Scroll past the map for a more detailed description.

SW Capitol Highway Project Map August 2021

This project will improve safety and mobility for all modes of travel while improving stormwater management, protecting water quality in local streams, and updating water supply infrastructure to meet modern demands. Portland’s Bureau of Transportation, Bureau of Environmental Services, and Water Bureau are working on the project together to reduce costs, improve efficiency, and enhance service delivery to the Portland community.

The project will add a continuous sidewalk and protected bike lane on the east side of SW Capitol Highway, and a multi-use path on the west side of the street, from SW Taylors Ferry Road to SW Garden Home Road. The project will collect and convey stormwater runoff through inlets and pipes to four new stormwater treatment and detention basins located nearby. The project also will upgrade the SW Capitol Highway water main to a larger, more seismically-resilient pipe between SW Marigold Street and SW Garden Home Road, with additional main replacement on SW Carson Street.

Please note that this project involves traffic detours. June-July 2021 will involve a series of closures of SW Garden Home Road and SW 40th Avenue between SW 45th Avenue and SW Capitol Highway, as well as several nights of night work at SW Multnomah Boulevard and SW 40th Avenue, for pipe installation. Then starting in August 2021, all southbound traffic on SW Capitol Highway will be diverted to SW 45th and 48th Avenues via SW Garden Home Road, and returning to SW Capitol Highway via SW Taylors Ferry Road. This includes TriMet buses. This detour will remain in place for the remainder of the 18-month project to help the contractor complete the project in a more safe, efficient fashion. Northbound traffic and TriMet buses will remain on SW Capitol Highway throughout the project. PBOT will issue Traffic Advisories in advance of these major traffic changes.

Project Background

Providing sidewalks and bike lanes on this segment of SW Capitol Highway has been a community priority for nearly 30 years. This segment, between SW Garden Home Road and SW Taylors Ferry Road, hosts over 8,000 vehicles per day, is served by TriMet’s #44 bus line, and currently has no sidewalks, bike lanes, pedestrian crossings or standard stormwater facilities.

The city’s project development process for this corridor began with the Capitol Highway Plan in 1996 and continued with the SW Capitol Highway Plan Refinement Report in 2011 and the Capitol Highway Corridor Stormwater Concept Design in 2016. In each of these cases, the city faced challenges in developing a buildable project with limited funding and challenging physical constraints.

In 2016 and 2017 sufficient funding came together from the voter-approved "Fixing Our Streets" ten-cent gas tax, development charges, Environmental Services, Water Bureau, and the State of Oregon, allowing the project to advance. The project team worked closely with the community from 2016 through 2020 to refine the design and discuss property and neighborhood impacts and benefits. 

Project Funding

This joint PBOT-BES-PWB project is funded through the Fixing Our Streets city gas tax, Transportation System Development Charges, Oregon Lottery-backed bonds authorized by the 2017 State Legislature, Bureau of Environmental Services funds, and Water Bureau funds. Fixing Our Streets is contributing roughly $6.6 million of the total project budget of $27.5 million, making this the largest project funded by the Fixing Our Streets program. The construction contract value is approximately $14 million, with remaining funds attributed to planning, design engineering, right-of-way acquisition, project management, and construction management and inspection.

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