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Monument Road Bridge

Monument Road Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: June 2, 2016

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Key Facts

Facility Carried / Feature Intersected
Park Pathway Over Park Stream
Rural: Doniphan County, Kansas: United States
Construction Date and Builder / Engineer
By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Main Span Length
34 Feet (10.4 Meters)
Structure Length
35 Feet (10.7 Meters)
Roadway Width
20.3 Feet (6.19 Meters)
1 Main Span(s)
NBI Number

Historic Significance Rating (HSR)
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Bridge Documentation

View Kansas Historic Resources Inventory Report For This Bridge

This bridge was relocated from Monument Road to its park setting. On Monument Road, this bridge was configured as a pony truss bridge with a 20 foot roadway. When it was moved, the trusses were set on top of a much narrower steel stringer bridge where the trusses act as decorations only. The outriggers were removed from the trusses, and a single overhead brace was added.

This bridge has been described as a Waddell A-Frame truss bridge. While its unusual design does replicate famous engineer J.A.L. Waddell's A-frame design, this bridge is mostly certainly not his personal work. Instead, its a very unusual example of a bridge built from parts salvaged from one or more other truss bridges. The evidence for this is very strong. This bridge has so many empty rivet holes on the top chord it looks like swiss cheese. It was at least partly put together from parts of a pin-connected truss, since the base of the end post has a now-unused pin plate present. Even the gusset plates are fashioned from old plates, it is clear they are cut with a cutting torch, and on sections unused rivet holes are visible, even along cut lines. This reuse project obviously occurred long ago during the riveted era, since all the "new" work is riveted. The enormous number of empty rivet holes on the channels composing this bridge suggest they are salvaged from a built-up beam that would have contained a pair of channels with v-lacing or lattice. When the bridge parts were reused, the lacing bars were removed, and the channels were reused as individual members.

Both during the historic bridge inventory and also during the relocation of the bridge, no comments were made on the salvaged nature of the bridge parts. Its unclear why this fairly obvious history has been overlooked.


Photo Galleries and Videos: Monument Road Bridge

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Maps and Links: Monument Road Bridge

This bridge is relocated and was previously located at 39.64397, -95.05382.

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