Rating:
1 vote

New Discovery Road Concrete Bowstring

Photos 

Photo taken by J.P. in December 2009

Enlarge

BH Photo #150546

Map 

Street View 

Facts 

Overview
Concrete girder bridge over Williams Creek on New Discovery Road
Location
Parke County, Indiana
Status
Open to traffic
Design
Concrete curved chord through girdre
Dimensions
Length of largest span: 49.9 ft.
Total length: 54.8 ft.
Deck width: 18.0 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+39.74417, -87.20694   (decimal degrees)
39°44'39" N, 87°12'25" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/482269/4399383 (zone/easting/northing)
Quadrangle map:
Catlin
Average daily traffic (as of 2016)
724
Inventory numers
INNBI 6100083 (Indiana bridge number on the National Bridge Inventory)
BH 43725 (Bridgehunter.com ID)
Inspection report (as of April 2016)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Fair (5 out of 9)
Sufficiency rating: 38.6 (out of 100)
View more at BridgeReports.com

Update Log 

  • February 10, 2018: New Street View added by Dana and Kay Klein
  • July 17, 2012: New photos from Steve Conro
  • December 8, 2009: Added by J.P.

Sources 

Comments 

New Discovery RD 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.