HistoricBridges.org Menu: HistoricBridges.org Menu:

Bach Steel - Experts at historic truss bridge restoration.

HistoricBridges.org: Bridge Browser

CR-1225 North Bridge

Jennings County Bridge 50

CR-1225 North Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: September 22, 2012

View Photos
and Videos
View Maps
and Links

Key Facts

Facility Carried / Feature Intersected
CR-1225 North Over Flatrock Creek
Rural: Jennings County, Indiana: United States
Construction Date and Builder / Engineer
1895 By Builder/Contractor: Wrought Iron Bridge Company of Canton, Ohio

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
60 Feet (18.29 Meters)
Structure Length
62 Feet (18.9 Meters)
Roadway Width
15.7 Feet (4.79 Meters)
1 Main Span(s)
NBI Number

Historic Significance Rating (HSR)

Bridge Documentation

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

Some names we find in roads and rivers make little sense today. However, Flatrock Creek is appropriately named. The creek is lined with flat rocks as it passes under the bridge. Indeed, one very unusual aspect of this bridge is that it does not have built abutments and instead simply rests on the rock.

Although no plaque survives, this bridge appears to be the work of the Wrought Iron Bridge Company. The reason for this assessment is the cast iron bridge shoes with part numbers cast into them that accept a threaded rod with nut style connection for the bottom chord, combined with the use of pairs of rolled t's with lattice for the vertical members.

The bridge has some other noteworthy details. The floorbeams are built-up. Small, possibly cast iron wedge-shaped washers are found above the hanger bolts. The lateral bracing connections to the floor beams also include unusual cast iron washers.

Information and Findings From DHPA Historic Bridge Survey

Statement of Significance

Aside from the design of the verticals and the adjustability of all diagonals, the other members of this Pratt pony span are rather standard for an early pinned structure. The absence of a man-made substructure is noteworthy. The original members of the unadorned bridge still function.

Architectural Description

This single-span Pratt pony truss rests upon bedrock. It has no man-made substructure. The pin-connected structure extends 61'8" in five panels. Its verticals are fabricated from laced Ts. All the diagonals and counters are made from cylindrical rods and adjust. A pair of rods supply the outer diagonals; a single rod provides the diagonal and counter in the center panel. Girder floor beams, which are U-bolted to the lower pins, carry the concrete deck with its 15'10" roadway.

Bridge Considered Historic By Survey: Yes


Photos and Videos: CR-1225 North 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 Video
Eastbound Crossing
Full Motion Video
Streaming video of the bridge. Also includes a higher quality downloadable video for greater clarity or offline viewing.

View Maps
and Links

Home Top


About - Contact

© Copyright 2003-2018, 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.