Rating:
4 votes

Big Rocky Fork Iron Bridge

Parke County, Indiana

Photos 

Unique bridge

Photo taken by Anthony Dillon in April 2009

Enlarge

BH Photo #136425

Map 

Video 

Big Rocky Fork bridge

video by Mike Daffron

Facts 

Overview
Through truss bridge over Big Rocky Fork Creek on CR 700S east of Mansfield
Location
Parke County, Indiana
Status
Open to pedestrians only
History
Built ca. 1890 by the Wrought Iron Bridge Co.
Builder
- Wrought Iron Bridge Co. of Canton, Ohio
Design
Pinned Pratt through truss
Dimensions
Length of largest span: 104.0 ft.
Total length: 108.9 ft.
Deck width: 16.1 ft.
Also called
County Bridge #11
Approximate latitude, longitude
+39.67444, -87.08689   (decimal degrees)
39°40'28" N, 87°05'13" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/492548/4391627 (zone/easting/northing)
Quadrangle map:
Mansfield
Average daily traffic (as of 2016)
715
Inventory numbers
INNBI 6100009 (Indiana bridge number on the National Bridge Inventory)
BH 42195 (Bridgehunter.com ID)
Inspection report (as of April 2018)
Overall condition: Good
Superstructure condition rating: Very Good (8 out of 9)
Substructure condition rating: Very Good (8 out of 9)
Deck condition rating: Very Good (8 out of 9)
Sufficiency rating: 88.6 (out of 100)
View more at BridgeReports.com

Categories 

19th Century (7,557)
Built during 1890s (2,982)
Indiana (4,917)
Laced endposts (159)
Open to pedestrians (4,208)
Owned by county (20,778)
Parke County, Indiana (93)
Pin-connected (3,901)
 Pratt through truss (5,387)
Pratt truss (9,293)
Span length 100-125 feet (4,395)
Structurally deficient (14,211)
Through truss (15,054)
Total length 100-125 feet (5,169)
Truss (32,771)
Wrought Iron Bridge Co. (374)

Update Log 

  • September 8, 2019: New photos from Mike Daffron
  • October 16, 2017: Updated by Robert Elder: Added category "Laced endposts"
  • October 15, 2017: New photos from Mike Daffron
  • June 17, 2017: New video from Mike Daffron
  • May 31, 2017: Updated by Christopher Finigan: Added category "Pin-connected"
  • March 5, 2010: Updated by Anthony Dillon: Added county bridge number
  • February 2, 2010: New photos from Anthony Dillon
  • May 16, 2009: Updated by Robert Stephenson
  • April 3, 2009: Updated by Robert Stephenson: Length, Span and GPS
  • April 2, 2009: Added by Anthony Dillon

Sources 

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Comments 

Big Rocky Fork Iron Bridge
Posted May 16, 2009, by Robert Elder (robertelder1 [at] gmail [dot] com)

The horizontal struts are certainly an unsual feature. Similar examples can be seen on another WIBC bridge - the Upper Bluffton Bridge near Decorah, Iowa.

http://www.bridgehunter.com/ia/winneshiek/upper-bluffton/