Rating:
3 votes

Imhoff Road Bridge

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Photos 

West end

Photo taken by James Baughn

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Map 

Facts 

Overview
Two-span through truss bridge over Lamine River on Imhoff Road
Location
Cooper County, Missouri
Status
Closed to traffic
History
Built 1908 by Kansas City Bridge Co.
Builders
- A.M. Blodgett of Kansas City, Missouri (Approach span)
- Kansas City Bridge Co. of Kansas City, Missouri (Main spans)
Design
From west to east:
One pin-connected, 3-panel Pratt pony truss
Two pin-connected, 8-panel Parker through trusses
Dimensions
Length of largest span: 160.0 ft.
Total length: 390.0 ft.
Deck width: 14.1 ft.
Vertical clearance above deck: 14.6 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+38.94608, -92.94796   (decimal degrees)
38°56'46" N, 92°56'53" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/504509/4310794 (zone/easting/northing)
Quadrangle map:
Pilot Grove North
Land survey
T. 48 N., R. 19 W., Sec. 12
Inventory numbers
MONBI 12954 (Missouri bridge number on the National Bridge Inventory)
BH 21348 (Bridgehunter.com ID)
Inspection (as of 04/2010)
Deck condition rating: Poor (4 out of 9)
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Poor (4 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 21.7 (out of 100)
Average daily traffic (as of 2010)
25

Update Log 

  • July 14, 2017: Updated by K. Allen Ballard: Added link to YouTube, video walkover by my son, Ken Ballard.
  • February 20, 2014: New photo from Jack Schmidt
  • September 20, 2013: Updated by James Baughn: Bridge is closed
  • October 17, 2005: Posted additional photos from Todd Baslee

Sources 

Comments 

Imhoff Road Bridge
Posted July 14, 2017, by K. Allen Ballard (speedeeprint [at] gmail [dot] com)

https://www.youtube.com/watch?v=az9LtrORS8U

This is a video walkover from west to east by my son, Ken Ballard in 2015.

Imhoff Road Bridge
Posted November 7, 2015, by george oakley (georgeoakley49 [at] yahoo [dot] com)

My bad.I spelled lally wrong.Didn't catch it until i read the comments.

Imhoff Road Bridge
Posted November 6, 2015, by Don Morrison

Nathan has a shot of the top of the shoe of one through truss and the roller nest of the other through truss atop one of the lally columns that has some cracking in the concrete and perhaps a little loose iron wrapping.

http://historicbridges.org/missouri/imhoff/dscf6045.jpg

Imhoff Road Bridge
Posted November 6, 2015, by Tony Dillon (spansaver [at] hotmail [dot] com)

Looks like solid concrete underneath...So it shouldn't cause a problem. If it had been gravel filled that would be a different story!

Imhoff Road Bridge
Posted November 5, 2015, by george oakley (georgeoakley49 [at] yahoo [dot] com)

Funny that I didn't see that don about the center lalley column being ripped open like that.Makes one wonder how that affects the structural integrity of the bridge.Maybe someone knows.

Imhoff Road Bridge
Posted November 4, 2015, by Don Morrison

Neat bridge; hope that center pier holds up.

I've never seen lally columns peeled open like that.

Imhoff Road Bridge
Posted November 3, 2015, by K. Allen Ballard (speedeeprint [at] gmail [dot] com)

Visited location on October 23rd, 2015; Awesome structure and location. Great photo ops await.....