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Description: This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest.

Description: This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest.

Description: This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest.

Description: This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest.

Description: This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest.

Description: This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest.

Description: This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest.

Description: This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest.

Description: "The Brooklyn Subdivision Bridge at MP 662.98 is a 1,563-foot-long structure that traverses the Willamette River. It replaced an earlier bridge in the same location. It is a five-span steel bridge designed with a 60-foot deck girder, two 200-foot pin-connected through-trusses, one 150-foot riveted through-truss, and one 240-foot swing-span. The use of a swing-span design reflected the desire to accommodate river traffic. The approaches to the bridge on each side of the river were originally timber trestle. The north approach was a 360-foot-long timber trestle bridge and the south approach was a 315-foot-long timber trestle bridge. They were replaced with concrete approaches between 2008 and 2010. This is an unusual bridge in that two types of trusses were used, giving it a transitional design that includes features from both the late nineteenth and the early twentieth centuries. It has pin-connected spans, more common in the late nineteenth century, and also has early rivet-connected spans, which began to be used in bridge design and construction in the early twentieth century. Original plans for the bridge were not found." Source: Historic American Engineering Record.

Description: This image is included in Building Oregon: Architecture of Oregon and the Pacific Northwest, a digital collection which provides documentation about the architectural heritage of the Pacific Northwest.