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Light rail construction to begin at Maple Leaf Portal

Posted by Mike on September 30th, 2013

Sound Transit announced today that work building a light trail tunnel from Roosevelt to Maple Leaf will begin as soon as this week.

Once construction begins, residents, local employees and drivers through the area will notice a series of short-term and long-term changes along First Avenue Northeast between Northeast 90th  and 100th streets.

The immediate work will continue until January, and will include bicycle detours and making First Avenue a one-way street. Details are here.

Trees and shrubs will be removed, and jackhammers will cut through concrete.

Long-term construction includes launching a tunnel boring machine from the Maple Leaf portal to drill two light rail tunnels to Sound Transit’s Roosevelt station, on 12th Avenue Northeast near Northeast 65th Street.

Other machines will tunnel between the underground Roosevelt station and the University District and Husky Stadium stations. North from the Maple Leaf Portal, the trains will run above ground along Interstate 5 to the Northgate station.

All this is predicted to take about four years and is the biggest chunk of the $2.1 billion Northgate Link Extension, set to fully open in 2021.



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4 reader comments so far ↓

  • 1 Tim // Sep 30, 2013 at 9:27 pm

    What’s the detour route for NB 5th?
    ST’s page nor the email they sent out this morning doesn’t say.

  • 2 Tim // Sep 30, 2013 at 9:28 pm

    Correction: Northbound 1st, not 5th

  • 3 An Observer // Oct 1, 2013 at 10:58 am

    Here it comes. This area will change, most good, some bad. No stopping it.

    Sidewalks thru to Roosevelt, please. And at least one that gets to 15th NE. 15th needs some attention, a sidewalk from the Bridge southward to the existing sidewalks at about 92nd. Why not all the way to Northgate Way?

    Mullally property will increase in value, as will most within walking distance of the light rail station.

  • 4 Thomas Paine // Oct 2, 2013 at 3:26 pm

    I sure hope they build the big parking garage. Otherwise our neighborhood is going to be overrun with people who “hide and ride.”