1 vote

North Big Creek Bridge


Photo taken by Nick Schmiedeler in January 2017


BH Photo #376035



Pratt pony truss bridge over North Big Creek on Fauna Road, 3.5 mi. north and 1.0 mi. east of Gridley
Coffey County, Kansas
Closed to all traffic
Likely built ca. 1910. Possibly rehabilitated in 1925.
Four panel, pin-connected Pratt pony truss
Length of largest span: 54.1 ft.
Total length: 56.1 ft.
Deck width: 13.4 ft.
Approximate latitude, longitude
+38.14667, -95.86667   (decimal degrees)
38°08'48" N, 95°52'00" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/248791/4225971 (zone/easting/northing)
Quadrangle map:
John Redmond Dam
Inventory numbers
KS 000160979005545 (Kansas local bridge number on the National Bridge Inventory)
BH 17615 (Bridgehunter.com ID)
Inspection report (as of May 2016)
Overall condition: Poor
Substructure condition rating: Critical (2 out of 9)
Deck condition rating: Serious (3 out of 9)
Sufficiency rating: 17 (out of 100)
View more at BridgeReports.com


Built during 1900s (7,474)
Closed (2,721)
Coffey County, Kansas (29)
Kansas (3,245)
One-lane traffic (7,668)
Owned by county (21,304)
Pin-connected (4,190)
Pony truss (16,682)
Pratt pony truss (3,816)
Pratt truss (9,838)
Span length 50-75 feet (10,283)
Structurally deficient (13,357)
Total length 50-75 feet (9,417)
Truss (34,243)

Update Log 

  • January 18, 2017: Updated by Robert Elder: Added category "Pin-connected"
  • January 17, 2017: New photos from Nick Schmiedeler


  • Nick Schmiedeler - nick [at] nickschmiedeler [dot] com
  • Robert Elder - robertelder1 [at] gmail [dot] com


North Big Creek Bridge
Posted January 18, 2017, by Robert Elder (robertelder1 [at] gmail [dot] com)

That makes sense. I might change the date to ca. 1910 in that case. This is a very rural area, so a very late changeover from pinned to riveted connections would not be a surprise.

North Big Creek Bridge
Posted January 18, 2017, by Nathan Holth (nathan [at] historicbridges [dot] org)

This bridge has enormously massive members for its span length. As such, I am guessing its a very late pin-connected truss. ca. 1915 is not out of the question.

North Big Creek Bridge
Posted January 18, 2017, by Robert Elder (robertelder1 [at] gmail [dot] com)

I have removed the build date of 1925 and replaced it with ca. 1900. This bridge is pin-connected, so it is almost certainly older than 1915.

I can't positively identify a builder. Coffey County did use the Canton Bridge Co. and this bridge has some features that I have seen on Canton Bridge Co. pony trusses. Thus, if I had to take a wild guess, the Canton Bridge Co. would be my first inclination. Compare to this one, which is a confirmed Canton Bridge Co product:


As a side note, P.E. Lane built some pony trusses in Coffey County as well. We should keep this in mind if any mystery bridges appear in the county.

North Big Creek Bridge
Posted January 17, 2017, by Nick Schmiedeler

Forgot to post this one from Jan. 11 driveabout - solid, some spray tagging going on, pretty bridge and creek otherwise