National Park Service

Photograph taken in bathroom B-13 on second floor, west of main support. The main support was weakened by cutting into the brick wall for installation of water pipes. From a series of photographs of the renovation of the White House.

Underpinning pit below in room under basement floor (under G-23 and G-24), east of the central areaway on the north side. This is from a series of photographs of the White House renovation.

Photograph showing the method of lifting earth from underpinning pit by means of an electric motor, with pulley and rope attached to large bucket. This is from a series of photographs of the renovation of the White House.

This split beam was revealed when an opening was made in ceiling of the White House Lobby to the east of the main entrance. This is from a series of photographs of the renovation of the White House.

Installation of mechanism for measuring the load on two columns between the Lobby and the main corridor. This is from a series of photographs of the renovation of the White House.

Detail of cornice and edge of ceiling in the main corridor at the southwest corner of the Lobby. From a series of photographs of the renovation of the White House.

View of northwest window in State Dining Room. In 1902, the west end of the main corridor was added to the State Dining Room. The removal of the cornice revealed the old archway of the western window of the corridor, hidden since 1902. This is from a series of photographs of the renovation of the White House.

Photograph of northwest corner of the second floor corridor of the White House showing crack in brick wall. From a series of photographs of the renovation of the White House.

View of north side of third floor corridor of the White House after the wall and part of the central arch had been removed. The steel construction was erected in 1927. This is from a series of photographs on the renovation of the White House.

Southeast view of the Yellow Bathroom (B-13), into corridor and brick wall west of the stairway, which is one of the main support columns of the building. The wall has been weakened greatly by cutting into the bricks for the installation of the water pipes shown in the photograph. From a series of photographs of the renovation of the White House.