Seattle City Light will be working over the next several weekends to locate and verify existing underground utilities prior to relocation of the final section of central waterfront transmission lines. Seattle City Light will be working over the next several weekends to inform its design for permanent relocation of the final section of central waterfront transmission lines. Currently, the transmission lines that power Seattle are attached to the vulnerable Alaskan Way Viaduct. Seattle City Light has been working to relocate these transmission lines along Seattle’s waterfront in advance of viaduct demolition.
The weekend work will include locating and verifying existing underground utilities, also called “potholing.” Potholing requires the use of a truck-mounted machine called a vactor truck. Vactor trucks are similar to large vacuums, excavating concrete and dirt to help identify underground utilities. Other fieldwork activities could include soil boring to monitor groundwater levels, also known as a geoprobe.
For the next few weekends, it is anticipated that this work:
• Will occur out of sight and within the fenced off work area maintained by Seattle Tunnel Partners (STP) between Yesler Way and South King Street.
• Crews will be working from 9 a.m. to 6 p.m.
• Fieldwork will only happen on weekends. No weekday fieldwork is anticipated.
For more information, including a map of the Central Waterfront Transmission Line Relocation Project visit: http://seattle.gov/light/aboutus/construction/cwftransmission/