Time to put a Wrap on Seattle
Just released
Federal Way Link cost estimate to increase by $460.3 million (pfft, not even half a $bilion)
July 26, 2018 By Peter Johnson/Seattle Transit Blog
Quote:
Sound Transit staff will inform the agency’s board today that the Federal Way Link extension’s official cost estimate will increase from $2.088 billion to $2.549 billion. The notice comes a year after the agency announced similar budgeting problems for the Lynnwood Link extension.
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The Federal Way Link intending to start construction next year will add 7.8 miles to the south. There will be only 3 new stations. The new cost estimate equals $327 million per mile. They do anticipate value engineering to create some savings.
ST3 which passed in 2016, included 62 miles for 5 new LRT lines to serve the outlying suburbs. Many are actually extensions, in some cases long extensions, to the original Seattle light rail line (plus the completed 1st extension under ST2).
In any case these suburb to city lines are much like RTD's and reportedly run along highway rights-of-way although they also had to acquire significant ROW and as
mhays pointed out there's a whole lot of grade separation. Also like RTD Fastracks there will be lots of Park N Ride capacity.
To be fair to Seattle their booming economy is a big part of the cost escalation and it would seem they also underestimated the cost to begin with by quite a lot. As to their costs, nobody explains it better than:
Quote:
Originally Posted by mhays
Regarding price, we have to create our corridors from scratch, often through hills or over water. The new additions will be almost universally grade-separated. So it'll cost a lot. In a dense area, costs start rising geometrically as new methods and longer schedules are needed to solve the various logistical challenges and ensure safety while keeping things open.
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Putting a Wrap on It
The Yuge advantage with Fastracks was timing. It will be a lot easier to deal with rising costs with respect to creating BRT and enhanced bus service which will run in existing (road) ROW. The value of having all of the DUS improvements which led to the current DUS neighborhood and 6 light and commuter rail lines are invaluable. Thank God that much is behind us.