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Status update

October 30, 2020

All roads in the neighborhood are open and the project is substantially complete. We thank residents for their patience. We will be in the area for a few weeks to clean up, replant more than 100 new native trees and bushes and close out the project.

162nd Avenue SE project work is substantially complete.
As of October 30, 2020, all roads in the neighborhood are open and the project is substantially complete.
Paving at 162nd Avenue SE.
Paving work on October 29, 2020.
Paving work completed on 162nd Avenue SE.
Newly paved section of road on 162nd Avenue SE.

>> See previous status updates

On this page

Detour map

162nd Avenue SE detour route map.
A temporary traffic detour will be in place during removal of the old culvert and installation of the new culvert. Larger view JPG 2MB

Contact us

Broch Bender, Communications Manager
Desk 206-263-1189
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Previous status updates

October 14, 2020

The road closure and detour is extended through Friday, October 30. The extension is needed to ensure paving and other activities that require dry weather can be completed.

October 7, 2020

The road closure and detour is extended through Monday, October 26. Work hours will be 7 a.m. until 5 or 8 p.m. Monday through Friday with occasional Saturday work. The extension is needed to allow crews enough time to safely install the culvert. Once the road reopens, crews may need to conduct partial road closures through early November.

162nd Avenue SE project work.
Culvert replacement work, October 6, 2020 - more on Twitter!


162nd Avenue SE project work site.
A view of the project work site, October 6, 2020 - more on Twitter!

August 26, 2020

The full road closure and posted detour is now in effect. The road closure and detour will be in place through Wednesday, October 14 - see the travel alert. Work hours will be 7 a.m. until 5 or 8 p.m. Monday through Friday with occasional Saturday work. There may be water shut-offs during some of the work in the coming months. Residents will be notified of water shut-offs directly from the Cedar River Water & Sewer District.

Project overview

This project replaces a 167-foot-long pipe and catch basin system that controls flows from an upstream stormwater detention facility and carries Madsen Creek under 162nd Avenue SE in the Fairwood area east of Renton. The project will protect roadway infrastructure, community safety, and improve fish passage through the area. Residents living in the area should expect a full road closure between SE 166th Place and SE 166th Court along 162nd Avenue SE while crews are working. A signed detour will be in place, and local access will be maintained - see the detour route map. JPG 2MB

Project timeline

  • Spring 2020
    Utility companies (Puget Sound Energy, Comcast Cable, Centurylink, Puget Sound Energy & Gas, Cedar River Water and Sewer District) relocates underground utilities.

  • Thursday, August 20, 2020
    Construction begins. Crews will post traffic notices for upcoming seven-week-long road closure starting August 26.

  • Wednesday, August 26 through Monday, October 26
    Construction requires a full road closure at 162nd Avenue SE at SE 166th Court. A signed detour is available. JPG 2MB

  • Tuesday, October 27 through mid-December
    The road is reopened to through traffic for the remainder of the project.

  • Mid-December 2020
    Project is complete

Project benefits

  • Safety – The road crossing pipe is deteriorated and, in its current condition, threatens the roadway and utilities in an urban residential neighborhood. Replacement is critical to prevent sinkholes and other failure of the roadway and associated detrimental impacts to the stream.

  • Fish passage – The existing pipe and catch basin system is a barrier to upstream fish migration due to a combination of the size and length of the culvert and presence of a flow control structure at the upstream end.

Work to be completed

  • Replace the deteriorated corrugated metal pipe and catch basin system with a new 133-foot-long, 17-foot-wide, 10-foot-high precast concrete box culvert designed in accordance with state requirements.

  • Install a weir-like control structure with a built-in fishway passage orifice and roughened channel to provide fish passage at low flows into the stormwater detention facility to the extent feasible while maintaining a minimum level of flow control from the upstream in-stream stormwater detention facility.

  • Install a stormwater detention vault under 162nd Avenue SE to compensate in part for anticipated lost storage in the upstream stormwater detention facility as a result of the proposed culvert.

  • Reconfigure the in-road stormwater runoff drainage system within the project footprint.

Work hours

  • 7 a.m. until as late as 8 p.m. Monday through Friday

  • Occasional Saturdays from 7 a.m. to 8 p.m.

Project location map

162nd Avenue SE map.

Project documents