Moles are invading Seattle. Not the small, furry mammals often reviled for destroying lawns, but the specialized boring machines used to excavate tunnels in urban environments. As part of its long-range capital investment plan, Central Puget Sound Regional Transit Authority, known simply as “Sound Transit,” recently initiated the University Link (U-Link) light rail extension that will serve the three largest urban centers in the state—downtown Seattle, Capitol Hill, and the University District. 

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