PROJECTS | NORTH AMERICA
PLANS, PROJECTS PROGRESS ON
From west coast to east in the US, and in Canada, progress is being made on a number of transport tunnel projects. Either in planning or well advanced in construction, underground infrastructure is being enhanced across North America. T&TI spotlights The latest on a few of the many projects
Above: Advances made in planning for high-speed rail, involving much tunnelling, in California PHOTO CREDIT: CALIFORNIA HIGH-SPEED RAIL AUTHORITY
From plans and progress in California to milestone starts and breakthrough on the US east coast, and breakthrough in Canada, there is much activity to take forward the development of more tunnel projects across North America.
US: CALIFORNIA High-Speed Rail The California High-Speed Rail Authority recently released the final environmental document for the planned new line between San Francisco and Los Angeles. The document covers the mostly underground
segment through mountains between Palmdale and Burbank in southern California. The Final EIR/EIS includes analysis of all six build
alternatives - one of which is the ‘No Project’ alternative. The preferred alternative – SR14A Alternative – runs
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along State Route 14. This alternative is for a grade- separated, high-speed rail-only system with tunnels through Acton and much of the Angeles National Forest and the San Gabriel Mountains National Monument. There are more than 25 active construction sites in
the Valley, with environmental approval cleared for the high-speed rail to run from the Bay Area to Los Angeles County. The rail authority’s CEO, Brian Kelly, said in a
statement: “This is a huge milestone for the project and it represents the culmination of years of analysis and stakeholder engagement to connect high-speed rail between two of the state’s major metropolitan centres, San Francisco and Los Angeles.”
LA Metro Tunnel construction was completed recently on the D Line Subway Extension in Los Angeles.
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