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For the Week of Aug. 4

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What's New

Concrete Pour for Site Foundation

  • Today (Friday) is the second significant concrete pour for the project. Concrete trucks began pouring at 8 a.m. on Seneca Street and at 9 a.m. on Boren Avenue. The pour will run all day, ending at around 6 p.m.

    • The pour is for the six-foot thick mat slab, which is the main support structure for the building.

  • On Thursday, Aug. 7, the third significant pour will take place. This pour will take place from Spring Street, and concrete trucks for the pour will be staged on Boren Avenue.

  • Seneca Street and Boren Avenue will be limited to one lane in each direction during the construction pours. Parking on the south side of Seneca Street will also be unavailable temporarily.

Crane Information and Updates

  • On Tuesday, Aug. 5, the tower-crane erection will begin (by city of Seattle permit) at 6 a.m. It will take all day and into the evening (approximately 14 hours) to fully erect the tower crane. The 550-ton mobile crane will be dismantled and removed once the tower crane is erected.

  • Periodically during the week, there will be steel-bar deliveries using the smaller, 50-ton crane that is now on site.

Commitment to Crane Safety
Virginia Mason and our work team are deeply committed to ensuring 100-percent safety for our neighbors and our team.

Tower-crane Safety Inspections
On Wednesday, Aug. 6, the tower crane "load test" and certification process will begin. This includes a post-erection test conducted by Seattle Tower Crane Inspection Services prior to its use.

Tower-crane Communications
We are implementing a thorough safety and communications effort that will begin with the following:

  • Dedicated Web page on the Virginia Mason site about tower-crane safety and activities:

  • Community letter mailed to about 1,500 residents and businesses near the Hospital Addition site.

  • We have established a construction hotline at (206) 341-1511 that you may call any time to leave your questions or concerns. We also ask that you use this hotline as a way to report unusual activity on or around the site.

  • Two Community Coffee events where members of the community can learn more about the crane from Virginia Mason and Skanska team members. 

    Where:  Correa C conference room (behind the cashier stands in the cafeteria)
    Virginia Mason Hospital
    925 Seneca Street, Seattle
    When:  Wednesday, Aug. 6, from 5:30 to 7 p.m.
    Saturday, Aug. 9, from 9 to 11 a.m.

    At any time, if you have questions, please do not hesitate to contact us (contact information listed at the end of this page).

What to Expect Over the Weekend
There will be no work associated with the VM construction project Saturday, Aug. 2, or Sunday, Aug. 3.

SDOT Boren/Madison Paving Project
If you would like more information about this project, please see the following link:

Sidewalk and Street Closures

  • Spring Street - Spring and its north sidewalk between Boren and Terry avenues will be closed 24 hours a day.

    The south sidewalk will be open to pedestrians throughout the week. If additional work is required in the alley, a wooden pedestrian footbridge will be installed over the alleyway to allow access and passage.

  • Boren Avenue - The westward southbound lane on Boren between Spring and Seneca will be closed during normal construction hours and will be open after construction hours. The sidewalk will be closed 24 hours a day.

  • Seneca Street - For the time being, the south sidewalk on Seneca between Boren and Terry will be closed. The north sidewalk will be open this week.

    • Parking Spaces - The four parking stalls west of Boren on only the south side of Seneca will continue to be closed to parking.

In Closing
Thank you for your patience throughout this construction period. We apologize for the inconveniences these activities may cause. As updated information becomes available, we will be sure to share it with you.

For more information about the addition, including an image and video gallery, please visit:

If you have any questions, comments or concerns about the construction activities, please contact:

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