Potholing activities inside and outside of the Seattle Tunnel Partners work zone
This Saturday, April 13 and Sunday, April 14, crews will continue investigative fieldwork for Phase 2 of the Central Waterfront Transmission Line Relocation Project. This includes potholing activities inside and outside of the Seattle Tunnel Partners (STP) fenced-off work zone.
On Sunday, crews anticipate continuing potholing activities outside of the fence at the intersection of Alaskan Way and King Street. These activities will help locate the viaduct column foundation footings and existing utilities to inform the design alignment for the new duct bank.
- Crews anticipate potholing activities inside the STP fence on Saturday.
- On Sunday, crews anticipate continuing potholing activities outside of the fence at the intersection of Alaskan Way and King Street. These activities will help locate the viaduct column foundation footings and existing utilities to inform the design alignment for the new duct bank.Work outside the STP fenced-off work zone will be restricted to Sunday to avoid possible impacts to traffic and pedestrians during Seattle Sounders and Mariners games.
- Crews plan to park a vactor truck along the STP fenced-off work zone to complete this activity. There are no planned impacts to traffic or pedestrians, but the work will be outside the fence and visible.
- Potholing activities will occur in coordination with other area projects. Depending on the availability of crews and equipment, potholing could continue over the next several weekends.
Anticipated fieldwork activities over the next few weekends:
- Crews will be working from 9 a.m. to 6 p.m. this weekend.
- Potholing activities are anticipated to wrap up over the next several weekends.
No weekday fieldwork is anticipated for this project, although crews will be in the area working on other projects during the week. Waterfront Seattle crews will be conducting potholing activities on Railroad Way S for Waterfront Seattle. To learn more about this work, check out Waterfront Seattle’s flyer.
What is the Central Waterfront Transmission Line Relocation Project?
Transmission lines that power Seattle have historically been attached to the vulnerable Alaskan Way Viaduct. Seattle City Light has been working to complete full relocation of these transmission lines along Seattle’s waterfront in advance of viaduct demolition. City Light is ready to complete the design for permanent relocation of the final section of central waterfront transmission lines. This section of 115 kV transmission lines runs from King Street to Yesler Way (see map). Seattle City Light is working to identify a route for the transmission lines in an underground duct bank in a path just west of the existing viaduct.
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