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We are writing to provide you with the latest information about our hospital addition construction project and the timing of the demolition of the Northcliffe building on the corner of Seneca Street and Boren Avenue.

REMINDER: Demolition Activity Feb. 23 and 24
The demolition of the Northcliffe building will take place this weekend: Saturday, Feb. 23, and Sunday, Feb. 24. This weekend activity was recommended and specially permitted by the city to occur outside of normal construction hours. To minimize disturbance caused by increased noise levels and disruption, activities will be limited to permitted construction hours, and noise levels will continue to be monitored regularly. We thank you in advance for your patience and encourage you to contact us with any concerns.

Feb. 23 and 24 work hours are:

  • 6 a.m. to between 7:30 and 8 a.m. - Traffic control measures put in place
  • Between 7:30 and 8 a.m. to 8 p.m. - Teardown activity (with Sunday activity expected to conclude a little earlier)

Increased Safety Measures
Demolitions often attract attention. We ask everyone to honor all the barricades and fencing that will be set up and use added caution whenever around an active demolition site. We will have increased safety personnel on and around the site, including Seattle Police officers, to direct traffic and monitor activity to better ensure public safety during the demolition. Fencing has been moved to the street, and sidewalks will remain closed throughout the demolition.

Street Closures Feb. 23 and 24

  • Spring Street - Spring Street between Boren and Terry avenues will be closed over the weekend of Feb. 23 and 24.
  • Boren Avenue - During demolition hours on Feb. 23 and 24, both southbound lanes of Boren will be closed for safety purposes. Traffic control will be set up to allow one lane of travel in each direction on Boren. 
  • Seneca Street - Seneca between Boren and Terry will be closed from 6 a.m. Saturday, Feb. 23, to late evening Sunday, Feb. 24.

Weekend Contact Information
In the event of an emergency or matter of urgency related to the demolition, please contact Skanska's Colm McGlynn or Jim Bradford, at (206) 437-2385.

Activities for the Week Beginning Monday, Feb. 25
Trenching and excavation work along Boren between Spring and Seneca will continue, which involves hauling out soil and pouring in concrete. As this work moves north toward Seneca, it will result in the closure of the first few parking spaces on each side of Seneca just west of Boren to accommodate the routing of bus and car traffic onto Boren.

Additionally, demolition equipment and building materials will be hauled from the site via Boren Avenue.

We will continue to build construction offices in the parking area just south of the Baroness Apartments (1005 Spring Street). Construction on a new temporary exit stairway from the hospital's seventh floor roof terrace down to the Emergency Department sidewalk on Spring Street will continue into March.

No work is planned for the weekend of March 1 and 2.

Street Closures the Week of Feb. 25 through March 2

  • Spring Street - Spring Street between Boren and Terry avenues will be closed throughout the week.
  • Boren Avenue - The outer southbound lane of Boren is closed and will remain closed into March. The inner southbound lane may be closed intermittently during weekdays as needed. Whenever both southbound lanes are closed, traffic control will allow one lane of travel in each direction on Boren. 
  • Seneca Street - Seneca and the sidewalks around the site will be open all week, but the first few parking stalls immediately west of Boren on both sides of the street will be closed to parking due to the routing of bus and car traffic onto Boren when the trenching work approaches Seneca.

Once again, we thank you for your patience throughout this period and apologize for any inconvenience these activities may cause. As updated information becomes available, we will be sure to share it with you.

As always, for more information about the addition, please visit:

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

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