Where the towers are founded on dry land, deep foundation excavation or pilings are used.

The river foundation excavations were complicated by a large oak trees found embedded in the river, which required divers for manual removal.

But he knew he had to justify his order to dig a test trench before the foundation excavation was dug, so he kept on picking.

The United States first used soil nailing in 1976 for the support of a 13.7 m deep foundation excavation in dense silty sands.

Sustenance workers were employed chiefly for on-site preparation, road construction, foundation excavation, clearing timber from the reservoir basin, and on some concreting operations.

Fish weir discovery continued in 1939, with archeological investigations led by Frederick Johnson during foundation excavation for the New England Mutual Life Building.

Most of the preparatory work including foundation excavations and the various camp facilities were completed by the end of autumn 1947, and official groundbreaking was on September 19 of that year.

With over 40 million cubic yards of foundation excavation and 110 million cubic yards of embankment construction, the construction of the dams was the largest earthworks project in the US.

The removal of the signage commenced shortly after the final lighting, and by mid-March 2009 the building had been partially demolished, As of October 2012, the spot that used to house the demolished building is still empty, although preliminary work for foundation excavation of the new building has begun.