After some futile attempts at repairs, Sound Transit contractors have scraped thousands of flawed concrete track ties from the decks of Interstate 90 so new ties can be built from scratch.

This second effort by the Kiewit-Hoffman partnership delays the Lake Washington train crossing beyond the mid-2024 target announced last summer, when the agency revealed that 5,455 concrete supports, known as plinths, were deficient from Seattle to Mercer Island.






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