Historic buildings

These joists at the northeast corner of the Red Room were uncovered during the renovation of the White House. The joists were cut into and weakened apparently to provide space for the pipes to the bathroom of Room 20 above.

View of installation of concrete sewer at the base of the underpinning wall at the center of south wall of the White House. A workman, excavating within the 36" sewer, fills the cart which is pulled out and emptied. The hydraulic jacks force the sewer sections into excavation area.

Southwest view from the east basement entrance of White House during renovation. The Allis Chalmers Cletrac Diesel-powered shovel is being used to excavate below the basement floor. The earth is carried outside the opening in the south wall and loaded on trucks by a truck crane.

View from window of Room G-3 looking west, during the renovation of the White House. Permanent steel columns have been installed below Room G-6. The derrick is used to lift steel beams to location desired.

View from window of Room G-17 along north wall showing progress in excavation of area below basement, during the White House renovation.

Photograph taken from south window of Room G-17 looking east along north wall, during the White House renovation. The area below the basement has been excavated except for the walls and foundations of the rooms along the north wall west of the central entrance.

Excavation for extension of tunnel at northeast corner of the White House. Sketch by the artist Lili Rethi. This was prepared during the renovation of the White House.

Northeast view from concrete beam at center of south side of White House. Members of the architect's office are examining excavations for concrete footings of permanent steel columns.

Workmen with air hammers are taking down the concrete ceiling and walk of the Electrician's Shop to the east of the North Portico during the renovation of the White House.

Northwest view from the concrete beam at the south central part of the White House showing the interior steel framework supporting the roof and third Floor during renovation.