BOSTON (CBS) – Work to measure the scope of a growing sinkhole under the Big Dig began Wednesday.

Workers were setting up along side the Mass Pike Connector Tunnel at Fort Point Channel to begin a drilling operation that will measure and test the soil that is settling under the South Station railroad tracks.

Engineers always knew the soil that was flash frozen to stabilize it during construction would settle according to Transportation Secretary Richard Davey.

WBZ NewsRadio 1030’s Lana Jones reports

Testing and measurements will take about a month.

Davey says there is no danger of collapse and once they have a handle on just how much settling has occurred, the void will be filled with concrete.


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