HistoricBridges.org Menu: HistoricBridges.org Menu:

Divider

HistoricBridges.org: Bridge Browser

Advertisements:
Bach Steel - Experts at historic truss bridge restoration.

Divider

Dailey Road Bridge

   


Dailey Road Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: August 11, 2012
View Photos
and Videos
View Maps
and Links

Key Facts

Facility Carried / Feature Intersected
Dailey Road (CR-180) Over Kokosing River
Location
Rural: Morrow County, Ohio
Construction Date and Builder / Engineer
By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
2000
Main Span Length
68 Feet (20.7 Meters)
Structure Length
69 Feet (21 Meters)
Roadway Width
16 Feet (4.9 Meters)
Spans
1 Main Span(s)
NBI Number
5932157

Historic Significance Rating (HSR)

Bridge Documentation

This Bridge's Future Is At Risk!

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

This bridge is a pin-connected pony truss of moderate length. The bridge remains open to traffic. Its historic integrity is fair, however several alterations do exist. A retrofit is present: additional rods have been added at the vertical members. The bottom chord has some welded repairs and splices. Welded repairs are also found at the base of the end posts. The bridge uses recessed nuts for the pins on the bridge, which provide the benefits of both a washer and a nut in one unit. One of the bottom chord nuts was put on backwards, likely after some repair was made to the bridge. It looks quite silly to anyone who knows how it is supposed to look!

Despite alteration, the bridge continues to offer aesthetic qualities typical of a pin-connected truss bridge, those qualities being far superior to any modern bridge.

Information and Findings From Ohio's Historic Bridge Inventory

Setting/Context

The bridge carries a 1 lane road over a stream in a rural area of active farms. The road narrows at the bridge.

Physical Description

The 1 span, 61'-long, pin-connected Pratt pony truss bridge is supported on ashlar abutments. The truss lines are traditionally composed with built up box sections for the upper chords and inclined end posts. The verticals are toe-out channels with lacing, and the diagonals and lower chords are eye bars. Vertical rod helpers have been placed, and there is impacted rust at the box sections.

Integrity

Numerous welded repairs, including the lower portions of all end posts. Vertical helpers added. Impacted rust.

Summary of Significance

The date of construction of the ca. 1888 pin connected Pratt pony truss bridge is not documented in Morrow County records, but stylistically it appears to have been fabricated by the Massillon Bridge Co. It is one of 20 examples of the important bridge type in Morrow County with the oldest extant example dating to 1874. Many are undocumented and represent the era of standardization. This example is attributed to the, who sold many truss bridges to the county. Morrow County retains many deteriorating pin connected truss bridges largely because of the economic issues associated with there replacement in a largely rural county with no industrial tax base. This example is not historically or technologically significant. This example has expedient repairs and is not historically or technologically significant in comparison to the county and state population of pin connected pony truss bridges.

Pratt trusses were undoubtedly the most popular truss design of the last quarter of the 19th century and continued to be built into the 20th century. The design, which initially was a combination of wood compression and iron tension members, was patented in 1844 by Thomas & Caleb Pratt. The great advantage of the Pratt over other designs was the relative ease of calculating the distribution of stresses. More significantly, it translated well into an all-metal design in lengths of less than 200'. Prior to about 1890, a variety of panel point connections (including bolts, cast-iron pieces, and pins), end panel floorbeam connections, and lower chord designs were in widespread use. Many of the connection details were proprietary and associated with individual builders or companies, and thus earlier examples are generally taken to be technologically significant in showing the evolution of the design. Post-1890 Pratt trusses show a progression toward less variation in their details such that by 1890 the design was quite formulaic with few significant differences between the designs of various builders. This marked the end of the pin-connected Pratt's technological evolution and, in fact, it was soon eclipsed in the highway bridge market by more rigid, rivet-connected truss designs, particularly the Warren design, but also the Pratt design as well. The transition to riveted field connections, which happened even earlier with railroads than highways, was in no small part due to concerns about stress reversals at the pins under heavier loads and improvements in pneumatic field riveting equipment in the early 1900s. In Ohio, there are 185 Pratt trusses dating from ca. 1874 to 1945 with at least 140 dating prior to 1900 (Phase 1A, 2008). The technologically significant unaltered examples of pin-connected Pratt trusses for the most part date prior to 1894. Post-1895 examples are less technologically significant.

Bridge Considered Historic By Survey: No

Divider

Photos and Videos: Dailey Road Bridge

Available Photo Galleries and Videos

Click on a thumbnail or gallery name below to visit that particular photo gallery. If videos are available, click on a video name to view and/or download that particular video.

 
View Photo Gallery
Bridge Photo-Documentation
Original / Full Size Photos
A collection of overview and detail photos. For the best visual immersion and full detail, or for use as a desktop background, this gallery presents the photos for this bridge in the original digital camera resolution.
View Photo Gallery
Bridge Photo-Documentation
Mobile Optimized Gallery
A collection of overview and detail photos. View the photos for this bridge in a reduced size which is useful for mobile/smartphone users, modem (dial-up) users, or those who do not wish to wait for the longer download times of the full-size photos. Alternatively, view this photo gallery using a popup slideshow viewer (great for mobile users) by clicking the link below.
Browse Gallery With Popup Viewer

View Maps
and Links

Divider
 
Home Top

Divider

About - Contact

© Copyright 2003-2017, HistoricBridges.org. All Rights Reserved. Disclaimer: HistoricBridges.org is a volunteer group of private citizens. HistoricBridges.org is NOT a government agency, does not represent or work with any governmental agencies, nor is it in any way associated with any government agency or any non-profit organization. While we strive for accuracy in our factual content, HistoricBridges.org offers no guarantee of accuracy. Information is provided "as is" without warranty of any kind, either expressed or implied. Information could include technical inaccuracies or errors of omission. Opinions and commentary are the opinions of the respective HistoricBridges.org member who made them and do not necessarily represent the views of anyone else, including any outside photographers whose images may appear on the page in which the commentary appears. HistoricBridges.org does not bear any responsibility for any consequences resulting from the use of this or any other HistoricBridges.org information. Owners and users of bridges have the responsibility of correctly following all applicable laws, rules, and regulations, regardless of any HistoricBridges.org information.