This is an outstanding and unaltered example of an early concrete arch bridge built by a pioneering concrete bridge company to Luten patents. The Ferro-Concrete Company is shown as builder on the plaque and as based in Philadelphia. More research is needed to confirm if this is the same as the Harrisburg Ferro-Concrete Construction Company company (it is assumed they are the same) and if in turn this Pennsylvania company was related to the Cincinnati based company of the exact same name which built concrete buildings in the United States and Canada. The reason for this confusion is because "Ferro-Concrete" was an early term for reinforced concrete and companies may have wished to use this name as the company name to promote this new material.
Information and Findings From Pennsylvania's Historic Bridge Inventory
Discussion of Bridge
The 33' long reinforced concrete deck arch bridge was built in 1907 by the Ferro Concrete Co. of Philadelphia, a known licensee of Daniel Luten's patented designs. It is finished with the concrete parapets with incised panels that are common to Luten's bridges. Luten was an important and prolific early proponent of reinforced concrete arch bridges, and it is known that they were once common in Berks County. Few as early and complete as this example survive. The School Street bridge is historically and technologically significant as an early example of its technology that was marketed and fabricated by a firm associated with the advancement of the bridge type.
Discussion of Surrounding Area
The bridge carries a 2 lane road over a stream in Monocacy. To the west are altered late- 19th century brick houses and to the east are more scattered but equally as altered houses. The area does not have the integrity to be a potential historic district.
Bridge Considered Historic By Survey: Yes
This bridge is tagged with the following special condition(s): Luten and Unorganized Photos
Coordinates (Latitude, Longitude):
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