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    Crews install ground monitoring instruments in October 2012 along the SR 99 tunnel route. The instruments will track any movement below the surface during tunneling. Similar equipment will be installed on nearly 200 buildings and structures. Learn more about the program at www.alaskanwayviaduct.org.

    Settlement monitoring program

    Thu, Dec 6, midnight 2012

    by WSDOT

    Crews install ground monitoring instruments in October 2012 along the SR 99 tunnel route. The instruments will track any movement below the surface during tunneling. Similar equipment will be installed on nearly 200 buildings and structures. Learn more about the program at www.alaskanwayviaduct.org.

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