HistoricBridges.org Menu: HistoricBridges.org Menu:

We Recommend:
Bach Steel - Experts at historic truss bridge restoration.

HistoricBridges.org: Bridge Browser

Califon Bridge

Califon Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: November 8, 2015

View Photos
and Videos
View Maps
and Links

Facility Carried / Feature Intersected
Main Street (CR-512) Over South Branch Raritan River
Califon: Hunterdon County, New Jersey: United States
Construction Date and Builder / Engineer
1887 By Builder/Contractor: I. P. Bartley and Co. of Bartley, New Jersey and Massillon Bridge Company of Massillon, Ohio
Rehabilitation Date
Main Span Length
95.0 Feet (29 Meters)
Structure Length
100.0 Feet (30.5 Meters)
Roadway Width
24 Feet (7.32 Meters)
1 Main Span(s)
Inventory Number

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

Additional Information: The Historic Bridge Inventory information references the Musconetcong Valley, however this bridge crosses the South Branch of the Raritan River, not the Musconetcong River. As such, some of the inventory information (and/or the National Register nomination) appears to be in error. 

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

This truss bridge has been severely altered. It no longer functions as a truss, and instead the trusses are only decorative in nature, having been placed on load-bearing steel stringers. Additionally as part of this alteration the bridge was also widened. That the bridge was widened is quite clear by looking at the portal bracing where the ends of the portal bracing have a different design, and the portal cresting is not present on these sections either.

Despite these alterations, the bridge is notable for retaining its ornamentation including plaque, finials, and portal cresting. These details also tell a very unusual story about this bridge. The plaque on the bridge reads "I P Bartley & Co, Builders, Bartley, NJ." This would normally who fabricated the bridge. However, this bridge has details indicating that Massillon Bridge Company of Massillon, Ohio fabricated the bridge. Little is known about I. P. Bartley, but it must have been a contractor who bought the bridge fabricated from Massillon, or perhaps Bartley was even an agent for the company.

The design of this plaque, including shape, details, and even the font style are absolutely 100% identical to those used by the Massillon Bridge Company of Massillon, Ohio. See the plaque on the CR-21 Bridge as an example. Additionally, the finials on this bridge are also a Massillon Bridge Company design. See the 66th Street Bridge as an example. Additionally, a historical photo of a former bridge on Fulton Street in Grand Rapids, Michigan displays the same finials. See below. The key unique detail on these finials that would not be found on finials by other bridge companies are the unusual spherical buttons with the crosses on them, set into the square base underneath the main ball.

Information and Findings From New Jersey's Historic Bridge Inventory


In order to retain the 1887 full hip, pin connected Pratt thru truss bridge, it was widened and converted to a stringer span in 1985. The ashlar abutments were extended with concrete. The original lateral, sway, and portal braces were spliced with in kind material to accommodate the widening. The original plaque, cresting, and ball finials remain. Although it has been widened, the trusses themselves are well preserved. As a result, the structure retains Its individual eligibility for listing in the National Register of Historic Places under Criteria A and C, and remains a contributing element of the Califon Historic District.


The bridge carries 2-lane wide Main Street over the South Branch of the Raritan River. It is located in the Califon Historic District, surrounded by 19th century residences and shops. Described in the nomination as "a documentary of life in a small 19th century rural based village," Califon was a stop on the High Bridge Railroad. The bridge was part of the farmers' access to market.

Physical Description

The single-span pin-connected thru truss bridge with cantilevered sidewalks was rehabilitated and widened in 1985, when it was converted into a stringer span with a thru-truss superstructure. Prior to 1985 the floor beam hangers and diagonals in the outside panels had been strengthened. The sensitive rehabilitation considered aesthetic elements, duplicating lattice portals and retaining original fabric. Decorative finials, balls, and plaque remain. The plaque identifies the builder as I. P. Bartley of Bartley, N.J. The original pin connections and elongated hangers are still present. The original fieldstone abutments are encased in concrete. Some original steel fabric is stamped "Carnegie."

Historical and Technological Significance

The pin-connected Pratt thru truss bridge built in 1887 is individually historically significant as an example of a small local bridge-building firm, I.P. Bartley of Mount Olive Township in nearby Morris County. The bridge is one of less than 5 examples of the firms work. It was widened in 1985 when rolled I-section steel stringers were added beneath the trusses and the bridge functionally became Although the bridge is located within the a stringer rather than a truss span, but the original fabric of the span was preserved. In addition to its historic significance, the bridge is located in the National Register-listed Califon Historic District. It was not rated in the nomination, but it was built within the period of significance of the district, and it contributes to the historic theme or area of significance of the district. The nomination describes the district as presenting "a documentary of life in a small nineteenth to twentieth century ruralbased village in the Musconetcong Valley..." as it existed between the years of 1870 to 1920. The bridge allowed the surrounding farmers access to the mills and railroad station of the village of Califon, and it was thus an important element in the historic development of the village. Although the bridge has been altered, the alterations were accomplished in a sensitive and non-obtrusive manner. The picturesque bridge contributes to the character of the late Victorian-era street scape. It was a key element in the development of the village as a trading and shipping point. All of these factors argue for inclusion of the structure as a contributing resource to the historic district.

Boundary Description and Justification

The bridge is a contributing resource in an National Register-listed historic district. The bridge and its setting are significant. For a precise delineation of the Califon Historic District boundary, refer to the National Register file at NJHPO.


Hunterdon County Engineer's Office Bridge card J1. Hunterdon County Master Plan: Sites of Historic Interest. 1979. NJHPO. National Register Files: Hunterdon County; Califon; Califon Historic District.

Bridge Considered Historic By Survey: Yes

This bridge is tagged with the following special condition(s): Trusses Converted To Decorative


Photo Galleries and Videos: Califon Bridge


View Photo Gallery

Bridge Photo-Documentation

Original / Full Size Photos
A collection of overview and detail photos. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer.
Alternatively, Browse Without Using Viewer


View Photo Gallery

Bridge Photo-Documentation

Mobile Optimized Photos
A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer.
Alternatively, Browse Without Using Viewer


Maps and Links: Califon Bridge

Coordinates (Latitude, Longitude):

Search For Additional Bridge Listings:

Bridgehunter.com: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

Bridgehunter.com: View listed bridges within 10 miles (16 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 10 miles (16 kilometers) of this bridge.

2021 National Bridge Inventory: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

Additional Maps:

Google Maps

Google Streetview (If Available)

Bing Maps


GeoHack (Additional Links and Coordinates)

Apple Maps (Via DuckDuckGo Search)

Apple Maps (Apple devices only)


HERE We Go Maps

ACME Mapper

Waze Map

Android: Open Location In Your Map or GPS App

Flickr Gallery (Find Nearby Photos)

Wikimedia Commons (Find Nearby Photos)

Directions Via Sygic For Android

Directions Via Sygic For iOS and Android Dolphin Browser

USGS National Map (United States Only)

Historical USGS Topo Maps (United States Only)

Historic Aerials (United States Only)

CalTopo Maps (United States Only)

Home Top


About - Contact

© Copyright 2003-2024, 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.

Admin Login