Vibratory casing installation in Portage Bay schedule: Phase of work is complete

Date: May 2026 to mid-summer 2026 (at least)

Time: Between 7 a.m. and 10 p.m. on weekdays and 9 a.m. to 10 p.m. on weekends

Activity details:

High-impact construction

Impact type:

Daytime

Noise

Vibration

July 27, 2026 Update:
Crews have finished installing the steel casings into Portage Bay for piers 4 through 8 of the new westbound bridge (casing installation for piers 1-3 and 9-12 will be scheduled in the future). Crews are now shifting their efforts to installing rebar and pouring concrete. This page will not be updated again until more vibratory work for casing installation resumes. Please call our 24-hour construction hotline at 206-319-4520 if you have questions on this or any other project-related work.

Crews are now using vibratory hammers to install large diameter steel casings in Portage Bay. This work is helping build the new foundations for the future westbound Portage Bay Bridge.

Crews started this work on the northwest side of the temporary work trestle near Boyer Avenue East and will work back and forth between casings, moving east toward Montlake Boulevard.

Below is an update on the planned schedule of vibratory casing installation in Portage Bay. This schedule will be updated weekly and is meant to provide a general overview of planned work. Please note construction schedules can – and often do – change so please check this link regularly for potential updates.

Installation schedule for the week of

Vibratory casing installation for these piers is complete.

Last updated: July 27, 2026 @ 9:10 a.m.

Nearby neighbors will experience noise and vibration during daytime construction through mid-summer. After crews finish installing the casings, they will begin work on the drilled shafts.

Typical work hours: 7 a.m. to 10 p.m. weekdays and 9 a.m. to 10 p.m. on weekends

Questions or concerns about vibration?

The outreach team is available 24 hours a day for neighbors to get in touch at 206-319-4520. We’re happy to answer calls and encourage neighbors to reach out if they have any questions or concerns about vibration, particularly if it’s unexpected, severe, or occurring in a place where it’s not usually felt.

While neighbors are always welcome to call us, we want to reiterate that this kind of noise and vibration will be a regular part of construction activity in the project area over the next four to five years.

Long-term closures

Weekday parking restrictions near Fuhrman Ave. for staging site begin June 15

Boyer Avenue East reduced to a single lane between East Roanoke Street and Everett Avenue East July 20 – September 1 (excluding weekends)

Activities