Rating:
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CR 700E Concrete Bowstring

Photos 

Photo taken by J.P. in December 2009

Enlarge

BH Photo #150541

Map 

Facts 

Overview
Concrete girder bridge over North Branch of Otter Creek on CR 700E
Location
Parke County, Indiana
Status
Open to traffic
Design
Concrete curved chord through girder
Dimensions
Length of largest span: 40.0 ft.
Total length: 44.6 ft.
Deck width: 17.7 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+39.61444, -87.10694   (decimal degrees)
39°36'52" N, 87°06'25" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/490820/4384971 (zone/easting/northing)
Quadrangle map:
Brazil East
Inventory numbers
INNBI 6100091 (Indiana bridge number on the National Bridge Inventory)
BH 43724 (Bridgehunter.com ID)
Inspection (as of 05/2014)
Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 74.8 (out of 100)
Average daily traffic (as of 2014)
99

Update Log 

  • May 12, 2010: New photos from Anthony Dillon
  • December 8, 2009: Added by J.P.

Sources 

  • J.P. - wildcatjon2000 [at] gmail [dot] com
  • Tony Dillon - spansaver [at] hotmail [dot] com

Comments 

CR 700E Concrete Bowstring
Posted December 8, 2009, by J.P.

Parke County has the only arched girders in Indiana. The arch was probably introduced to provide unusual girder depth at center for this extraordinarily long span and to eliminate redundant material at the ends. In addition, only a minority of concrete through girders use a slab rather than floor beams to support the roadway. The girders are also nicely decorated.

Architectural Description: The concrete through girder has a pair of large beams which flank the roadway and whose reinforcing rods are interlocked with those of either floor beams or of a slab deck. Because of its greater rigidity, the through girder can be extended beyond the T-beam's ordinary span length. In most cases, though, it has been preferred over the T-beam only when headroom is critical, i.e; where the roadway is so close to stream level that girders, which carry some of their load above the roadway, provide greater assurance against obstructing the watercourse.