Information from Sound Transit

Starting as early as Wednesday, May 29, Sound Transit plans to two conduct geotechnical borings for soil analysis on the southbound parking lanes on 41st Ave SW near SW Alaska St. These locations may shift slightly depending on the placement of underground utilities. Sound Transit is in the planning phase for the West Seattle Link Extension project. This work, along with other investigations throughout the project corridor, is necessary to plan and design possible light rail alignments to be studied in the environmental review process (see image below for project map).

Geotechnical drilling

To study soil and groundwater conditions, a drill rig is used to bore vertically into the ground while collecting soil samples.

Following the collection of soil samples, a monitoring device is installed which will be used by crews to monitor water levels on future visits. Water level readings will be taken every few months as the design phase progresses. In accordance with all local regulations, the 4- to 12- inch diameter borings will be installed carefully to avoid soil erosion and dirt or mud from leaking into surface waters, wetlands, and drainage systems.

We will work on one side of the street at a time to minimize effects on parking.

More

• Work is expected to begin as early as Wednesday, May 29, and be complete by Thursday, June 6.

Activities are scheduled from 8 a.m. to 5 p.m. on weekdays. No parking signs will be placed at the following locations:

o Starting Wednesday, May 29- Southbound and northbound parking lanes of 41st Ave SW closest to the intersection of SW Edmunds St.

o Starting Monday, June 3-Southbound and northbound parking lanes of 41st Ave SW closest to the intersection of SW Alaska St.

• Crews will work within the designated work area,

• No parking signs will be placed on southbound and northbound parking lanes on 41st Ave SW at least 72-hours before the start of work and removed once work is complete. No parking signs are enforceable during the dates and times listed on them. Signs will be placed on the street where the May 2024 work is to occur.

• Roadways and driveways will remain open.

• Due to inclement weather or unforeseen issues, dates and times are subject to change.

• Drilling equipment will sound like a truck engine running, with occasional hammering.

Contact us

westseattlelink@soundtransit.org or 206-903-7229

After-hours construction hotline: 888-298-2395

Learn about the project and subscribe to email updates:

soundtransit.org/wslink

About the project

The West Seattle Link Extension will provide fast, reliable light rail connections to dense residential and job centers throughout the region. Adding 4.1 miles of new service and 4 new stations between SODO and Alaska Junction in West Seattle, this project is part of the regional transit system expansion approved by voters in November 2016. soundtransit.org/wslink