Geo-Instruments implemented one of the industry’s first automated laser scanning systems using Leica Geosystems technology for near-real-time geotechnical monitoring to support construction of the Puget Sound Regional Transit Authority’s (Sound Transit) University Link (U-Link) light rail extension in Seattle, WA. The U-Link light rail extension will connect the three largest urban centers in the state of Washington. Beginning in 2011, the tunnel boring machines will excavate a 3.5-mile, twin-bored tunnel from downtown Seattle to the University of Washington. Key to the success of this project is the ability to tunnel under Interstate 5, a major artery near downtown Seattle, without impact to the aging infrastructure, deep foundations and existing utility lines. Read More