Construction Blog

Tree Removal at Hospital, Sept. 17 to Sept. 19; Parking Restrictions Sept. 17

Bartlett Tree Experts will remove some large trees around the perimeter of the hospital campus from Sept. 17 to Sept. 19. The work will proceed as follows:

  • Monday, Sept. 17: Crews will remove two trees at the Metro route 78 bus stop and turnaround on the southeast corner of the hospital campus. The stop (number 29091) and turnaround will be closed while the trees are removed. Metro will reroute bus 78 that day along 45th Avenue NE and 46th Avenue NE to serve as a temporary turnaround. To accommodate buses, no parking will be allowed on the east side of 45th Avenue and along both sides of 46th Avenue near the intersection with NE 47th Street that day. National Barricade will place “no parking” signs on Friday, Sept. 14 with the date and time of the parking restriction.
  • Tuesday, Sept. 18: Crews will remove one tree at the southwest corner of the hospital campus, near the intersection of 40th Avenue NE and NE 45th Street. Crews will also prune two trees near Sand Point Way south of Penny Drive. No traffic or parking disruptions are anticipated.
  • Wednesday, Sept. 19: Crews will remove three trees on the south side of NE 47th Street between 44th Avenue NE and 45th Avenue NE. Bartlett Tree Experts will park their boom truck on NE 47th Street to access the trees. No traffic or parking disruptions are anticipated.

This work will include noise from chainsaws and chippers. The tree removal will take place each day from 9 a.m. to 4 p.m.

Please call 206-987-8000 or email with questions.

Delayed Projects Will Resume Immediately Once Strike Ends

The strike by the International Union of Operating Engineers Local 302 against the Associated General Contractors of Washington is ongoing, and as discussed in the Aug. 29 Construction Blog post, it is affecting Seattle Children’s projects. Work that does not rely on members of Local 302 has continued.

It is unclear when the strike will end, but once it does, work will immediately begin on the tasks that have been delayed. At the hospital campus, that includes completing the new Emergency Department (ED) driveway to 40th Avenue and paving the old landscape island in the existing ED driveway. As outlined in the Aug. 6 blog post, this requires temporary closure of a portion of the sidewalk along the east side of 40th Avenue. When this work finally takes place, construction noise will be generated from 8 a.m. to 6 p.m. on weekdays, and 9 a.m. to 6 p.m. on Saturdays. The installation of new asphalt will generate some odor as well. There will also be no parking allowed on both sides of 40th Avenue while this work occurs.

Because of the uncertainty caused by the strike, we’re providing this information to give you advance notice of these anticipated construction activities. We will post further updates as information becomes available.

As always, please email or call 206-987-8000 if you have questions.

Vegetation Removal on Sept. 5 at Hospital

On Wednesday, Sept. 5, crews will remove some vegetation from the west side of Helen Lane at the hospital. This work will be performed using a boom lift placed in the River parking lot, north of the elevator to the River entrance. Four parking stalls in the River lot will be closed to accommodate the boom lift. Moderate levels of noise will be created from 8 a.m. to 6 p.m. that day.

Please contact or call 206-987-8000 with questions.

Upcoming Work Along Helen Lane and at River Entrance

On Tuesday, Sept. 4, crews will add new striping on Helen Lane at the hospital for traffic and parking control. The striping is expected to take only one day. Initial work will begin at 6 a.m., but construction noise will not be generated until 8 a.m. The new paint will cause some minor odors. This task will be complete by 6 p.m. on Sept. 4.

On Thursday, Sept. 6, construction crews will begin excavating for new sign foundations near the River entrance. This work will include saw cutting and drilling concrete; a vacuum truck will also be used during this stage. Helen Lane and the River entrance will remain open. Flaggers and spotters will be used to assist with vehicle and pedestrian traffic.

The saw cutting, drilling and vacuuming will generate noise, and some minor odors may be created as well. These activities will occur from 8 a.m. to 6 p.m. on Thursday, Sept. 6; Friday, Sept. 7; and Monday, Sept. 10. No work associated with the sign foundations will take place on the weekend.

Please contact or call 206-987-8000 with questions or concerns.

Union Strike Impacting Seattle Children’s Construction Projects

On Aug. 21, the International Union of Operating Engineers Local 302 went on strike against the Associated General Contractors of Washington. The strike is ongoing and is affecting Seattle Children’s construction sites. This will impact the dates of some tasks listed in previous Construction Blog posts, such as the new driveway to 40th Avenue at the hospital. Once the strike is over, work on the delayed tasks will resume as soon as possible, and we will post updates on the blog once new work dates are defined. In the meantime, work that does not rely on members of Local 302 is continuing. Stay tuned to the Construction Blog for details.

Sandblasting to Occur in Lot 1 on Aug. 27

On Monday, Aug. 27, a portion of Lot 1 at the hospital campus will be sandblasted in order to prepare the area for restriping. The sandblasting will occur on the lowest level of the parking garage. Noise will be generated from 7 a.m. to 5 p.m. that day, but the impact to neighbors is expected to be minimal. Contact if you have questions or concerns.

Terry Avenue Closed Aug. 30 for Building Cure Topping Out Event

Seattle Children’s Research Institute will celebrate a milestone on Aug. 30 — the topping out of Building Cure, a new research building under construction at 1920 Terry Ave. Seattle Children’s is hosting a private event that day that includes a beam-signing ceremony and lunch for staff and the construction and project teams. The beam will be raised around 12:45 p.m. Up to 1,000 attendees are expected.

Event details are as follows:

What: Building Cure Topping Out Event
When: Thursday, Aug. 30, 11 a.m. to 2 p.m.
Where: 1920 Terry Ave., between Stewart and Virginia streets

Please be advised that Terry Avenue will be closed to vehicular traffic between Stewart and Virginia streets beginning at 7 a.m. Terry Avenue will reopen at 4 p.m. The sidewalk on Terry Avenue will remain open.

If you have questions or need additional information, please email

Preparation Work for Modified Emergency Department Drop-Off Project Begins Aug. 24

Beginning Aug. 24, construction crews will close and fence off the area between the hospital and 40th Avenue. The existing Emergency Department (ED) driveway will be narrowed by the fence placement. Once the fence is up, crews will remove the on-site hard surfaces (such as the walkways and the old smoking shelter pad) and will also install protection measures for on-site trees and utilities. This work, which will take place from Aug. 24 to Aug. 31, is the next step in a larger, phased project to construct a modified ED drop-off area in preparation for Building Care construction.

The sidewalk on 40th Avenue will remain open during this stage of work. The fence will remain in place for the future phases happening over the next few months.

This work will occur from 8 a.m. to 6 p.m. weekdays, and 9 a.m. to 6 p.m. Saturday, Aug. 25. Normal levels of construction noise are anticipated.

Please email with questions.

Modular Dismantling and Removal Taking Place in August on the Hospital Campus

Modular buildings located on Seattle Children’s hospital campus are being dismantled and removed in sections via Penny Drive from now through Aug. 20. The dismantling will take place Mondays through Fridays, from 9 a.m. to 6 p.m.; dismantling work will not occur on weekends.

The physical move of modular sections down Penny Drive will take place as follows: one at 1:30 p.m. and one at 7 p.m. Mondays through Fridays; and multiple moves from 8 a.m. to 8 p.m. Saturdays. No work will occur on Sundays. Transporting modular sections down Penny Drive should not cause significant delays, but if we experience traffic congestion, the Ocean garage exit to NE 45th Street may be opened for a brief time to prevent delays to patient and family departures.

For questions or concerns, please email

Construction for New Driveway to 40th Avenue Begins Aug. 15

From Aug. 15 to Aug. 24, a portion of sidewalk on the east side of 40th Avenue NE, between the existing Emergency Department (ED) driveway and the Metro route 65 bus stop, will be closed as construction crews build a new ED driveway. This work is the first phase of a larger, phased project to construct a modified ED drop-off area.

Pedestrians will have two options for safely maneuvering around the construction zone:

  • Use the temporary walkway that will be fenced through the Forest service drive and ambulance bay. It will connect with the existing walkway to 40th Avenue that runs along the ED driveway; or
  • Cross to the west side of 40th Avenue in a designated crosswalk.

Please be safe and use only designated pedestrian paths and crosswalks.

Additionally, the landscape island within the existing ED driveway will be removed during that same period. The existing ED driveway will remain open.

This work will occur from 8 a.m. to 6 p.m. weekdays, and 9 a.m. to 6 p.m. Saturday, Aug. 18. Normal levels of construction noise are anticipated.

Please email or call 206-987-8000 if you have questions.