HistoricBridges.org Menu: HistoricBridges.org Menu:


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

HistoricBridges.org: Bridge Browser

Hilltown Bridge

Churchill Road Bridge

Hilltown Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: July 3, 2006

View Photos
and Videos
View Maps
and Links

Key Facts

Facility Carried / Feature Intersected
Churchill Road Over Mahoning River
Location
Rural: Lawrence County, Pennsylvania: United States
Construction Date and Builder / Engineer
By Builder/Contractor: Unknown and Engineer/Design: Thomas Gilkey

Technical Facts

Rehabilitation Date
1914
Main Span Length
153 Feet (46.6 Meters)
Structure Length
282 Feet (86 Meters)
Roadway Width
15.4 Feet (4.69 Meters)
Spans
2 Main Span(s)
NBI Number
37720403247013

Historic Significance Rating (HSR)
View Information About HSR Ratings

Bridge Documentation

This bridge no longer exists!

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

This historic bridge was demolished and replaced in 2007!

Despite the fact that Pennsylvania has lots of large rivers, as well as lots of metal truss bridges compared to other states like Michigan, the number of remaining multi-span pin connected Pratt through truss bridges has dwindled to an alarming low. As such, the preservation of this bridge should have been pursued. This bridge had two spans of differing age. The span at the north end of the bridge appeared to be much older, based on the lightweight members. The southern end was dated 1913 by the plaque, and although it is still a pin connected, the members a a bit more massive typical of a later pin-connected truss bridge.

Someone had made off with the "elaborate scroll-design fill" that the historic bridge inventory entry mentioned by the time HistoricBridges.org documented the bridge in 2006. Oddly, though those appear to have been on the older north span, where empty bolt/rivet holes on that bracing were observed, the Historic Bridge Inventory seemed to think that those were on both spans, which they were not. The Historic Bridge Inventory failed to realize there were two different age and design spans composing this bridge. The north span is unlikely to be a product of this engineer Thomas Gilkey that is shown on the plaque of the newer south span. It is unknown who built the original two-span bridge, of which the northern span appeared to have been a remnant and when. It is likely that some disaster necessitated the replacement of the southern span in 1913.

Also, while the Historic Bridge Inventory shoots down Thomas Gilkey's efforts in Lawrence County, it is worth suggesting an alternative viewpoint that because the newer span of this bridge is associated with Gilkey that it is significant as an example of how bridge design in Lawrence County unfolded in the early 20th century. Because of Gilkey, a local engineer, Lawrence County was building different types of bridges than most places were in the 1910s. Thomas Gilkey also designed the large Mahoning Avenue Viaduct, and the Mill Street Bridge in New Castle, all late examples of pin-connected truss bridges.

Information and Findings From Pennsylvania's Historic Bridge Inventory

Discussion of Bridge

The 2-span, 282' long and 16' wide, pin connected Pratt thru truss bridge supported on an ashlar substructure was fabricated in 1914. The trusses are traditionally composed, and the floorbeams are framed into the verticals above the eye bar lower chords. The knee braces of the lattice portal braces have an elaborate scroll-design fill. The bridge appears to be complete, but it is an extremely late example of its technology. Mr. Gilkey designed pin connected bridges for the county through the 1920s. The bridge has no innovative or distinctive details, and it is neither historically or technologically significant.

Discussion of Surrounding Area

The bridge carries a 2 lane road over a stream in a sparsely developed area with scattered 20th century houses. The earliest ones are highly altered, and there are many modern houses. The area does not have historic district potential.

Bridge Considered Historic By Survey: No

Divider

Photo Galleries and Videos: Hilltown 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

Divider

Maps and Links: Hilltown Bridge

This historic bridge has been demolished. This map is shown for reference purposes only.

Coordinates (Latitude, Longitude):

View Bridge Location In:

Bridgehunter.com: View listed bridges within a half mile of this bridge.

Bridgehunter.com: View listed bridges within 10 miles of this bridge.

Google Maps

Google Streetview (If Available)

Bing Maps

OpenStreetMap

Apple Maps (Via DuckDuckGo Search)

Apple Maps (Apple devices only)

MapQuest

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)

CalTopo Maps (United States Only)


Divider
 
Home Top

Divider

About - Contact

© Copyright 2003-2021, 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

Divider