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Paper Mill Bridge

McIntyre Bridge

Paper Mill Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: July 23, 2018

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Key Facts

Facility Carried / Feature Intersected
Yorklyn Bridge Trail Over Red Clay Creek
Location
Yorklyn: New Castle County, Delaware: United States
Construction Date and Builder / Engineer
1883 By Builder/Contractor: King Bridge Company of Cleveland, Ohio

Technical Facts

Rehabilitation Date
2018
Main Span Length
120 Feet (36 Meters)
Structure Length
120 Feet (37 Meters)
Roadway Width
14.3 Feet (4.36 Meters)
Spans
1 Main Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)

Bridge Documentation

This bridge was relocated here and preserved for pedestrian use in Auburn Heights Preserve. Please also see HistoricBridges.org's page for photos and documentation of the bridge in its previous location in Poweshiek County, Iowa.

Please choose the above link to view the page for this bridge's previous location for a full history and description of this bridge. The below narrative is focused on the bridge's new life here in Delaware.

This bridge has a remarkable story. It was originally located in Poweshiek County, Iowa, and while attempts were being made to preserve it by the non-profit oraganization Workin' Bridges, the bridge collapsed during floods and was severely damaged. Damage was so severe that most people would have considered the bridge beyond repair. However, Workin' Bridges was able to convince the Auburn Heights Preserve in Delaware to include this bridge among the collection of historic bridges being installed in this state park. Bach Steel was the firm responsible for the restoration work. The work was an in-kind restoration of the trusses, including hot riveting used. Broken pieces of the top chord had to be repaired, and extensive alignment and striaghtening work was needed to correct the damage from the collapse. The engineering firm for the project, Schiffer Group Engineering, recomended that the badly damaged vertical members be replaced, and that this presented an opportunity to provide stronger members as well for better load capacity. This presented a dilemna since the vertical members are composed of star iron (cruciform) which was a type of rolled iron/steel that is no longer available today. Bach Steel undertood a labor-intensive method to replicate the star iron by welding and grinding angles together to form the star shape.

With its erection on-site in Delaware in July 2018, this was the first of several proposed historic bridges to be relocated and preserved at the Auburn Heights Preserve. Its relocation to Delaware gave the bridge the distinction of being the only cast and wrought iron bowstring bridge in Delaware.

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Photo Galleries and Videos: Paper Mill Bridge

 
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A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer

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Maps and Links: Paper Mill Bridge

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