On August 8, 1989 work began on a 72 hour replacement of the swing bridge 5.1, the Willamette River Bridge, with a new lift bridge. The work was completed on August 11, 1989. Photograph by Alden Raney. Other subject classes: Bridge-Swing.

On August 8, 1989 work began on a 72 hour replacement of the swing bridge 5.1, the Willamette River Bridge, with a new lift bridge. The work was completed on August 11, 1989. Photograph by Alden Raney. Other subject classes: Bridge-Swing.

On August 8, 1989 work began on a 72 hour replacement of the swing bridge 5.1, the Willamette River Bridge, with a new lift bridge. The work was completed on August 11, 1989. Photograph by Alden Raney. Other subject classes: Bridge-Swing.

On August 8, 1989 work began on a 72 hour replacement of the swing bridge 5.1, the Willamette River Bridge, with a new lift bridge. The work was completed on August 11, 1989. Photograph by Alden Raney. Other subject classes: Bridge-Swing.

A view of demolition by Burlington Northern of former SP&S Hoyt Street Roundhouse in Portland, Oregon, undated.

A view of demolition by Burlington Northern of former SP&S Hoyt Street Roundhouse in Portland, Oregon, undated.

A view of demolition by Burlington Northern of former SP&S Hoyt Street Roundhouse in Portland, Oregon, undated.

A view of demolition by Burlington Northern of former SP&S Hoyt Street Roundhouse in Portland, Oregon, undated.

A view of demolition by Burlington Northern of former SP&S Hoyt Street Roundhouse in Portland, Oregon, undated.

A view of demolition by Burlington Northern of former SP&S Hoyt Street Roundhouse in Portland, Oregon, undated.