Rating:
2 votes

Seven Hills Bridge

Photos 

Photo taken by Janis Ford

Enlarge

BH Photo #256970

Map 

Street View 

Description 

The truss looks a lot like an inverted queenpost.

Facts 

Overview
Pratt pony truss bridge over Panhandle Railroad on Seven Hills Road (TR-232)
Location
Licking County, Ohio
Status
Relocated
Future prospects
To be relocated and preserved at a new location.
History
Built 1870s. Possibly Rehabilitated/Relocated c. 1920
Railroad
- Pittsburgh, Cincinnati, Chicago, & St. Louis Railroad (PCC&StL)
Design
Pin-connected Pratt pony truss with unique pin-connected trussed floorbeams.
Dimensions
Length of largest span: 86.9 ft.
Total length: 89.9 ft.
Deck width: 22.3 ft.
Approximate latitude, longitude
+40.07655, -82.24922   (decimal degrees)
40°04'36" N, 82°14'57" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/393484/4437001 (zone/easting/northing)
Quadrangle map:
Toboso
Inventory numbers
ODOT 4538102 (Ohio Dept. of Transportation structure file number)
BH 46573 (Bridgehunter.com ID)
Inspection (as of 10/2014)
Deck condition rating: Poor (4 out of 9)
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 45.3 (out of 100)
Average daily traffic (as of 2008)
316

Update Log 

  • November 20, 2016: Updated by Janis Ford: Updated status & added to truss description
  • June 21, 2013: New photos from Luke Harden
  • October 18, 2010: Added by Nathan Holth

Sources 

Comments 

Seven Hills Bridge
Posted June 8, 2017, by Tony Dillon (spansaver [at] hotmail [dot] com)

A BIG win for Licking County is saving this rare beauty!

Seven Hills Bridge
Posted June 8, 2017, by Nathan Holth (webmaster [at] historicbridges [dot] org)

Tom Barrett at ODOT supplied the attached photos showing that this bridge has been successfully relocated to Camp Falling Rock Boy Scout Camp. I do not have the exact coordinates of the new location. It might be in the vicinity of 40.179869, -82.301123

https://goo.gl/maps/fKvsYJf6nYG2

Seven Hills Bridge
Posted November 21, 2016, by Nathan Holth (webmaster [at] historicbridges [dot] org)

The contractor incorrectly guessed the weight of this truss (it is far heavier in design than most pony trusses). The first attempt to pick it was not successful, and the contractor had to bring in additional counterweights for the crane and extend the crane's "bat wings." It is fortunate these options were available on the crane used, otherwise the costs to mobilize a different crane would have been enormous. A good lesson on why hiring experienced contractors is essential for this type of job.

Seven Hills Bridge
Posted November 20, 2016, by Tony Dillon (spansaver [at] hotmail [dot] com)

Good to hear!

Seven Hills Bridge
Posted November 20, 2016, by Janis T Ford (jford3 [at] columbus [dot] rr [dot] com)

I learned today that the bridge has been removed. It will be restored & moved (or possibly moved & restored) to the Boy Scout Camp in Licking county. They have already preserved another rare metal bridge as well as a covered bridge at that camp.

Seven Hills Bridge
Posted June 25, 2013, by Nathan Holth (form3 [at] historicbridges [dot] org)

Tony,

Have not visited the bridge personally, but Vern Mesler was contacted about it some time ago. Apparently there was some interest in relocation. I am also including a Historic Bridge Inventory photo showing the unusual floor beams.

Seven Hills Bridge
Posted June 22, 2013, by Tony Dillon (spansaver [at] hotmail [dot] com)

The inner panels feature diagonals with some extremely unusual lacing that I haven't seen on any other spans. It's kind of like ribbon lacing in a sense but is doubled to give an X appearance. Very unique bridge that worries me a little because it's in Ohio, hope they know what they have here!

Seven Hills Bridge
Posted June 22, 2013, by Fmiser (fmiser [at] gmail [dot] com)

Thanks for the photos Janis! What unique construction! And I can't even see the truss floor beams Nathan mentined... What I do is is:

* truss webs that are equally sloped inboard and outboard rather than the typical vertical inboard with buttress on the outboard side

* some lacing that is secured in between eyebars or channels with long pins that appear to also function as struts.

* Maybe the joint pins have plain nuts rather than lomas nuts.

Sure wish I could see more. Guess I need to plan an Ohio trip.

Seven Hills Bridge
Posted June 21, 2013, by Janis Ford (jford3 [at] columbus [dot] rr [dot] com)

Also taken 6/30/07, is this neat tunnel under the railroad track. It's a little further west than the Seven Hills bridge, on Hickman Rd/C210. N of Marne Rd/C585.

Seven Hills Bridge
Posted June 21, 2013, by Janis Ford (jford3 [at] columbus [dot] rr [dot] com)

I happened upon this bridge 6/30/07, when I took these photos. It's high over a gorge with a railroad track & trail.

Seven Hills Bridge
Posted October 18, 2010, by Nathan Holth (form3 [at] historicbridges [dot] org)

The photo on Oldohiobridges.com does not show this but this is a nationally significant c. 1870s railroad pony truss with unique pin-connected truss floorbeams!