Rating:
4 votes

Seven Mile Road Bridge

Photos 

Barrel shot looking East

Photo taken by Anthony Dillon in June 2010

Enlarge

BH Photo #168326

Map 

Description 

This is 1 of only 2 Indiana Bridge Company "High-Triangular" trusses that remain.

The other being the 1902 Peterson Ford Bridge in Deleware County, IN

Facts 

Overview
Polygonal Warren through truss bridge over Seven Mile Creek on TR 331
Location
Preble County, Ohio
Status
Restored and open to traffic
History
Built 1906 by the Indiana Bridge Co. of Muncie, In., Restored 2014-15
Builder
- Indiana Bridge Co. of Muncie, Indiana
Design
IBCo "High-Triangular" truss (1 of only 2 remaining)
Dimensions
Length of largest span: 146.0 ft.
Total length: 154.9 ft.
Deck width: 15.7 ft.
Recognition
Eligible for the National Register of Historic Places
Also called
Seven Mile Creek TR 331 Bridge
Approximate latitude, longitude
+39.67392, -84.62214   (decimal degrees)
39°40'26" N, 84°37'20" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/703946/4394269 (zone/easting/northing)
Quadrangle map:
West Alexandria
Inventory numbers
ODOT 6831826 (Ohio Dept. of Transportation structure file number)
BH 28280 (Bridgehunter.com ID)
Inspection (as of 09/2015)
Deck condition rating: Excellent (9 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Excellent (9 out of 9)
Sufficiency rating: 74.5 (out of 100)
Average daily traffic (as of 2014)
150

Update Log 

  • November 18, 2015: New photos from Jack Schmidt
  • June 30, 2015: Updated by Tony Dillon: Updated status
  • June 26, 2012: Updated by Nathan Holth: Bridge closed to traffic following inspection.
  • June 24, 2010: New photos from Anthony Dillon
  • February 17, 2010: Updated by Anthony Dillon: Added GPS coordinates
  • July 6, 2008: Updated by Anthony Dillon
  • July 5, 2008: Updated by Anthony Dillon

Sources 

Comments 

Seven Mile Road Bridge
Posted July 16, 2015, by Robert Elder (robertelder1 [at] gmail [dot] com)

This is a classic example of how Bridgehunter can serve as a marketplace of ideas between D.O.T.s, Historical Societies, Preservationists, and those who have to use a historic bridge to get to their home or property.

Anytime a jurisdiction chooses preservation or rehabilitation over demolition, I will praise them. I do second the idea of putting original plaques, or replicas thereof in original places. I also agree that rehabilitation plaques have a place too, but I would prefer them near the bridge, as opposed to on the bridge.

Just my $0.02

Seven Mile Road Bridge
Posted July 15, 2015, by Nathan Holth (webmaster [at] historicbridges [dot] org)

First off I agree with Tony that Preble County deserves to be thanked for choosing to preserve one of the most unique metal truss bridges in Ohio, and resisting the urge to demolish the bridge as they have done with many other historic truss bridges in the county.

That said, this is a rehabilitation, not a restoration. U.S. Bridge company absolutely does NOT provide the service of historic metal truss bridge "restoration", they only rehabilitate them, usually with bolts and other alterations. U.S. Bridge does not hide this fact, as their plaque states that it was "rehabilitated."

As for the plaque mounting location, I can't imagine why you would want to do this, unless they eventually plan to put clearance signs on the portal bracing, and like Pennsylvania, refuse to mount them anywhere other than dead center, so the plaques are off to the side for this reason?

While I am elated that the lattice hub guard railings remain, I would also have suggested a two tube or other deck-mounted guiderail system in front to protect the historic bridge and the county's investment from collision damage.

I also already see rust dripping from the lower right portal bracing attachment to end post in Tony's photo. I would be curious what the source of this is. Also, discoloration at the top of the left endpost in Tony's photo.

Visually, I have no objections to galvanization, it just looks like the lead-based silver paint that was used on many bridges in past decades.

Seven Mile Road Bridge
Posted July 15, 2015, by Tony Dillon (spansaver [at] hotmail [dot] com)

I had a chance to visit this bridge over the 4th of July weekend, and while ultimately pleased that it was finally restored I must call notice to the placement of the plaques. Instead of being returned to their proper home at the center of the A Frame portals, the original builders plaques were placed on one of the endposts while new substantial "Look what I did" plaques adorn the opposite sides. I have absolutely NOTHING against a new plaque being added to a restored bridge to show "When and by whom", but they should not supplant or alter placement of the original ones and they should never distract from the accomplishment of the original builder.

I wasn't sure how I would feel about a Galvanized historic truss bridge, but I'm just happy that it has been restored.

Seven Mile Road Bridge
Posted June 30, 2015, by Tony Dillon (spansaver [at] hotmail [dot] com)

A bit of praise to Preble County for finally coming through and restoring this highly significant bridge. After obliterating their collection of 1800-early 1900's pony trusses hopefully they will save face on some of their larger spans.

I hope to visit soon and take pictures that I can send to Delaware County, Indiana officials to show them how their High-Triangular Truss should be restored!

Seven Mile Road Bridge
Posted January 22, 2015, by Anonymous (preblecounty [at] hotmail [dot] com)

After completion.

Seven Mile Road Bridge
Posted January 22, 2015, by Anonymous (preblecounty [at] hotmail [dot] com)

This structure has been rehabilitated and open to traffic. I encourage you to visit it!

Seven Mile Road Bridge
Posted September 15, 2013, by Janis Ford (jford3 [at] columbus [dot] rr [dot] com)

I was told today (9/15/13) that the plan is still to restore this bridge.

Seven Mile Road Bridge
Posted July 18, 2012, by Nathan Holth (form3 [at] historicbridges [dot] org)

The historic bridge management plan for this bridge indicates that the county currently has plans to rehabilitate this historic bridge.

Seven Mile Road Bridge
Posted July 18, 2012, by Tony Dillon (spansaver [at] hotmail [dot] com)

One of only two Indiana Bridge Company "High-triangular" truss bridges still in existence. A must save!

Seven Mile Road Bridge
Posted July 17, 2012, by Janis Ford (jford3 [at] columbus [dot] rr [dot] com)

Photos taken 7/16/12 of bridge after closure.

Seven Mile Road Bridge
Posted June 26, 2012, by Nathan Holth (form3 [at] historicbridges [dot] org)
Seven Mile Road Bridge
Posted January 28, 2011, by Anthony Dillon (spansaver [at] hotmail [dot] com)

Still scratching my head as to why Preble County repaired and painted the much-less significant Brower Road Bridge while this rare (1 of only 2 remaining) example of an Indiana Bridge Company "High-triangular" Truss continues to deteriorate.

Seven Mile Road Bridge
Posted January 28, 2011, by Wayne Grodkiewicz (wgrodkiewi [at] aol [dot] com)

Hi,

Stopped by to check out this bridge today (28 January 2011), it's still there and looking good, needs some restoration but very nice to see it still standing. I took a couple of pictures that I will post later on. The existing ones look much prettier because today is a very dull and snowy day in Ohio.