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Light rail to West Seattle and Ballard could get way pricier

caption: A Sound Transit light rail train nears Othello station in Seattle.
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A Sound Transit light rail train nears Othello station in Seattle.

Expanding light rail to West Seattle, Ballard and elsewhere could get more expensive — a lot more expensive.

Sound Transit released documents Wednesday night on a number of expansion options for new light rail lines.

For West Seattle, the documents show it could cost up to $1.2 billion more to build a tunnel instead of Sound Transit's cheapest route. Other options would cost $300 million to $700 million more than the basic proposal.

There are eight options on the table for the Ballard line. Some could raise the cost anywhere from $100 million to $500 million.

You can take a look at all of these in this Sound Transit document.

At this point, light rail trains aren't scheduled to roll into West Seattle until 2030 and into Ballard until 2035.

Correction, 2 p.m., 9/14/2018: An earlier version of this story incorrectly described how the cheapest route to West Seattle would be built.



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