Burlington Northern type GP10 1436 along with F-Units and other diesels at Hoyt Street Yard in Portland in 1977. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Burlington Northern type GP10 1436 at Hoyt Street Yard in Portland in 1977. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Burlington Northern type GP10 1436 along with F-Units and other diesels at Hoyt Street Yard in Portland in 1977. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Burlington Northern type SW1 102 at Hoyt Street Yard in Portland in March 1978. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Burlington Northern type SW900 100 at Hoyt Street Yard in Portland in 1981. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

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.

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.