This bridge is an old and rare example of a Whipple truss bridge. It is further significant as a bridge built by the prolific and noteworthy King Bridge Company. The actual on-site construction was undertaken by King and Twiss of Des Moines, Iowa. The bridge has been closed to traffic, but is in decent condition. It would be easy to restore for pedestrian use either here or relocated to a new location. It also would be feasible to rehabilitate for light vehicular use. Either way, this bridge deserves to be preserved. It retains good historic integrity although some alterations were noted included a repaired vertical and diagonal member. Some of the diagonal member intersection castings have broken off.
Apparently, there is a park called Three Bridges Park immediately northeast of this bridge. Restoring this bridge for pedestrian use as part of this park is an idea to consider.
Information and Findings From Iowa's Historic Bridge Inventory
Discussion of Bridge
The bridge over the Iowa River near the town of Quarry in Le Grand Township was one of Marshall County's oldest spans when it collapsed during late spring flooding in 1885. In June the board of supervisors hired
the Wright Brothers, local contractors, to pull the wrecked structure from the river, and subsequently solicited competitive proposals from bridge companies for a replacement span. On July 1st the board awarded a construction
contract to low-bidder King and Twiss of Des Moines for a 150-foot Whipple truss identical to the Stanley Mill Bridge, built by the county the year before. Using a superstructure fabricated by the King Iron Bridge Company of
Cleveland, Ohio, the builders completed the bridge by September at a total cost of $3,295. The Quarry Bridge has carried traffic since, with the reconstruction of its north abutment with concrete the only major alteration of note.
Bridge Considered Historic By Survey: Yes
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