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285th Street Bridge

285th Street Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: August 10, 2013

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Key Facts

Facility Carried / Feature Intersected
285th Street Over Salt Creek
Location
Rural: Tama County, Iowa: United States
Construction Date and Builder / Engineer
1897 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
1935
Main Span Length
120 Feet (36.58 Meters)
Structure Length
123 Feet (37.49 Meters)
Roadway Width
15.4 Feet (4.69 Meters)
Spans
1 Main Span(s)
NBI Number
317430

Historic Significance Rating (HSR)

Bridge Documentation

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

This is a traditionally composed example of a pin-connected through truss. It has a fairly lightweight a-frame portal bracing. The bridge remained open to traffic when visited in 2013. One of the end posts and one of the vertical members appear to have been damaged by collision and subsequently had i-beams added to them. Otherwise, the bridge retains good historic integrity. Bridges like this are feasible to rehabilitate for continued light vehicular use. They can also be relocated and reused for pedestrian traffic in different locations like parks and trails. If done under the direction of firms with proper experience quality projects can be completed for a reasonable cost that may be comparable with the cost of replacement. Because of this, historic bridges like this should never be demolished, yet even as they become alarmingly uncommon and even rare in many places they are being replaced at a rapid rate nationwide.

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Photo Galleries and Videos: 285th Street Bridge

 
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