Brooklyn Subdivision Bridge, Union Pacific Railroad (Harrisburg, Oregon)
- Title
- Brooklyn Subdivision Bridge, Union Pacific Railroad (Harrisburg, Oregon)
- LC Subject
- Architecture, American Architecture--United States
- Alternative
- Brooklyn Bridge (Harrisburg, Oregon) Southern Pacific Railroad Bridge (Harrisburg, Oregon)
- 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. Union Pacific Railroad Historic American Engineering Record Documentation
- Temporal
- 1900-1909
- Work Type
- architecture (object genre) built works bridges (built works) railroad bridges
- Location
- Linn County >> Oregon >> United States Oregon >> United States Harrisburg >> Linn County >> Oregon >> United States
- Street Address
- Milepost 662.98
- Date
- 1906
- Identifier
- UPRR_HAER_Documentation_Final_20130522
- Rights
- In Copyright - Educational Use Permitted
- Type
- Image
- Format
- application/pdf
- Set
- Building Oregon
- Primary Set
- Building Oregon
- Institution
- University of Oregon
- Note
- "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.