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Milepost 31
(Now Closed)Historic and Protected Site and Tourist Information and Service
Pioneer Square, Seattle
1 Tip and review
WSDOTAugust 3, 2012Stop by to check out the new 10 ft long 3 ft wide boring machine model. Actual boring machine is 57.5 feet in diameter; 326 feet long; weighs 500 tons and digs 200 feet deep!
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Created by Elle Cayabyab Gitlin
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