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.

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.

Narrow gauge railroad using small steam locomotives and dump cars of large rock at Fort Stevens, Oregon with rock used in the Columbia River South Jetty, undated. Photo by Kiser Photo Company.

Narrow gauge railroad using small steam locomotives and dump cars of large rock at Fort Stevens, Oregon with rock used in the Columbia River South Jetty, undated. Photo by Kiser Photo Company.