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Pleasant Valley Road Bridge

Pleasant Valley Road Bridge

Primary Photographer(s): Rick McOmber

Bridge Documented: September 9, 2009

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Key Facts

Facility Carried / Feature Intersected
Pleasant Valley Road (CR-85) Over Chagrin River
Location
Rural: Lake County, Ohio: United States
Construction Date and Builder / Engineer
1881 By Builder/Contractor: Wrought Iron Bridge Company of Canton, Ohio

Technical Facts

Rehabilitation Date
2009
Main Span Length
163 Feet (50 Meters)
Structure Length
167 Feet (51 Meters)
Roadway Width
15.4 Feet (4.69 Meters)
Spans
1 Main Span(s)
NBI Number
4370554

Historic Significance Rating (HSR)

Bridge Documentation

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

This bridge is an example of the Wrought Iron Bridge Company earlier design for a large span Whipple truss. It has been rehabilitated for continued vehicular use at the expense of historic integrity and alteration. Floorbeams, pins, and other elements are not original. Many rivets were replaced with high strength bolts. An interesting feature of the rehabilitation was that it was galvanized instead of painted. The silver/grey color created by galvanization is not offensive, and indeed its lighter color helps bring the truss bridge details out. The bridge is rare as an example of a Whipple truss, and also the last remaining highway truss in Lake County, Ohio.

Information and Findings From Ohio's Historic Bridge Inventory

Physical Description

The bridge is a 1-span, 167'-long, double-intersection Pratt (Whipple) truss. It is composed of built-up compression members and eye-bar or rod tension members. There are lattice portals with builders plaques and a decorative shield displaying the date of construction.

Integrity

Rehabilitated in 2006.

Summary of Significance

The 1881 double-intersection Pratt (Whipple) truss bridge is a technologically significant example of its type/design fabricated by the Wrought Iron Bridge Co., a prominent Ohio fabricator. It was sensitively rehabilitated in 2006. The eligible recommendation of the prior inventory remains appropriate.

Justification

There are at least 14 examples of the bridge type important to the development and maturation of the pin-connected thru truss bridge. They date from 1881 and concentrate in the 1880s. Even though there are more than 12 extant examples in Ohio, each built in the 1880s has high significance based on overall scarcity (everywhere but in Ohio) of the design. This is a major and technologically significant bridge type. The bridge has high significance.

Bridge Considered Historic By Survey: Yes

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Photo Galleries and Videos: Pleasant Valley Road Bridge

 
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Maps and Links: Pleasant Valley Road Bridge

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