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Project Details Information

Release Date: 6/23/2014
Contact: Roy Carbonell - Electrical Service Representative
phone: 206-684-3047
Alternate Contact: Bikas Pande - Project Manager
phone: 206-684-0502
   
Work planned on: Leschi Conduit Installation Project

Seattle City Light plans to increase the electrical reliability for customers near Powell Barnett Park along Martin Luther King, Jr. Way. The improvements will reduce the number of unplanned outages and electrical repairs.

What is the big picture for this project?

In 2009 and 2010, Seattle City Light tested and where possible injected aging underground electrical cable with silicone in the Leschi neighborhood. Silicone injection extends the life of underground electrical cable. About 27 percent of the electrical cable was not suited for injection and now requires replacement. This includes a segment of cable on Martin Luther King Jr., near Powell Barnett Park. See map here.

What are the important details and impacts of this project?

  • The project involves three steps that must be completed in this order: 1) confirming the location of other adjacent underground utilities to avoid hitting them (called potholing), 2) installing conduit, and 3) pulling new electrical cable into the conduit.
  • Seattle City Light has hired a contractor to do the potholing and installing of the conduit. At a later date, City Light crews will pull in the electrical cable.
  • The method for conduit installation is called horizontal directional drilling (HDD) and involves a boring machine drilling a small-diameter hole underground. It is a less disruptive and more efficient method than excavating trenches.
  • A power outage may be required during the conduit installation part of the project. Affected residences will be notified 48 hours in advance before any outage.
  • All work will be done in the public right-of-way on the east side of Martin Luther King, Jr. Way.
  • Pits are required to allow insertion of the boring machines drill. These pits will be approximately 4 by 4 feet and located intermittently along the drilling route. They will be plated at night.
  • Affected sidewalks, driveways, and street will be completely restored by the contractor.
  • Tree protection will meet Seattle Department of Transportations Urban Forestry standards. The Citys arborist will be on call.
  • Temporary parking and traffic restrictions will be in place. Flaggers will be used to direct traffic.

10/17/2014 Update: Conduit installation is moving toward completion.

Schedule: Daily: Monday through Friday
Begin: July 2014
Duration: 7 Months
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Call (206) 684-3000
   



 
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