Property Record
DUNCAN CREEK AT CENTRAL ST
Architecture and History Inventory
| Historic Name: | |
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| Other Name: | Central Street Bridge |
| Contributing: | |
| Reference Number: | 45741 |
| Location (Address): | DUNCAN CREEK AT CENTRAL ST |
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| County: | Chippewa |
| City: | Chippewa Falls |
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| Unincorporated Community: | |
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| Year Built: | 1934 |
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| Additions: | |
| Survey Date: | 198420152024 |
| Historic Use: | bridge |
| Architectural Style: | NA (unknown or not a building) |
| Structural System: | Pratt Truss |
| Wall Material: | Metal |
| Architect: | State Highway Commission |
| Other Buildings On Site: | |
| Demolished?: | No |
| Demolished Date: |
| National/State Register Listing Name: | Not listed |
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| National Register Listing Date: | |
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| Additional Information: | A 'site file' exists for this property. It contains additional information such as correspondence, newspaper clippings, or historical information. It is a public record and may be viewed in person at the Wisconsin Historical Society, State Historic Preservation Office. Highlighted by CRMP as example of its type. 2015 - This single-span, riveted metal, Pratt through truss bridge carries East Central Street over Duncan Creek in the city of Chippewa Falls. The structure was designed in 1934 by the Wisconsin State Highway Commission but construction was delayed until it became federally funded as a PWA project in 1938. Erection of the bridge was completed in 1939. The structure has an overall length of 135 feet and width of approximately 49 feet, and features a parallel top chord and inclined end posts. While the top chord and end posts are built-up from channels, plates, and lacing, the vertical and diagonal truss members are rolled I-beams. The substructure consists of concrete abutments. Decorative details include modest Art Deco-inspired metal railings. 2024: The Central Street Bridge is a steel, riveted, Pratt overhead truss with a span length of 130.4 feet an an overall length of 135 feet. It has an overall width of 48.4 feet which includes a 30-foot-wide roadway and sidewalks on both sides. The sidewalks are enclosed with ornamental cast steel railings with curved ends. The bridge has a 6-inch concrete deck that has been overlayed with asphalt. The decks rests on 14 I-beam stringers supported by concrete abutments; 8 of the stringers support the roadway and 6 support the sidewalks. The stringers are intersected by 9 floor beams and laterally braced with cross-bracing that is riveted to the bottom chord. Steel overhanging brackets extend from the floor beams to support the sidewalks. The bottom chord is built of back-to-back channels riveted with batten plates. The top chord has inclined ends posts and is constructed of two channels with a top plate and underside lattice lacing. The top chords are connected with lateral cross-bracing and supported by lateral struts with sway bracing. The portals are constructed of angles with topside V-lacing and connnected to the lattice bracing by gusset plates. Each side of the truss is 23 feet tall and consists of 8 panels with vertical and diagonal members. The center sections have horizontal beams bracing the verticals and diagonals at their midpoints and are connected with riveted batten plates. The members are riveted to the top chord with gusset plates. The vertical, diagonal, and horiztonal members are steel rolled I-beams. The bridge's east abutment has rocker expansion bearings and the west abutment has fixed shoe bearings. On either side of the deck are concrete curbs and steel railings. The railings have curved ends, lattice lacing, and are riveted to the members with steel bent plates. The are 8 evenly spaced drainage openings at the base of the concrete curbs along both sides of the roadway. Overhead truss bridge |
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| Bibliographic References: | Date of construction: CRMP, Transportation chapter, p. 12-15. |
| Wisconsin Architecture and History Inventory, State Historic Preservation Office, Wisconsin Historical Society, Madison, Wisconsin |