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Chimney Rock Bridge

Winneshiek County, Iowa
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Photos 

Oblique view

Photo taken October 2005 by Jason & Birgit Smith

Map 

View Uglybridges.com report

Facts 

Overview
Through truss bridge over Upper Iowa River on Chimney Rock Road
Location
Winneshiek County, Iowa
Status
Open to one-lane traffic
History
Built 1906 by the Continental Bridge Co. Relocated here in 1952- is the first bridge built at this location.
Builder
- Continental Bridge Co. of Illinois
Design
Pin-connected, 10-panel Parker through truss with Town Lattice portal bracing
Dimensions
Length of largest span: 158.1 ft.
Total length: 162.1 ft.
Deck width: 15.4 ft.
Vertical clearance above deck: 14.5 ft.
Also called
Snell Bridge (prior to 1952)
Approximate latitude, longitude
+43.42150, -91.93510   (decimal degrees)
43°25'17" N, 91°56'06" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/586202/4808174 (zone/easting/northing)
Land survey
T. 99 N., R. 9 W., Sec. 5
USGS topographic map
Bluffton
Inventory numbers
IA 348790 (Iowa bridge number)
BH 14723 (Bridgehunter.com ID)
Inspection (as of 03/2012)
Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 23.2 (out of 100)
Average daily traffic (as of 2009)
25

Categories 

10-panel truss (116)
Built 1906 (360)
Built during 1900s (4,247)
Continental Bridge Co. (8)
Corrugated deck (519)
Functionally obsolete (7,040)
Iowa (3,511)
One-lane traffic (7,112)
Open (28,319)
Owned by county (16,492)
 Parker through truss (947)
Parker truss (1,267)
Pin-connected (1,521)
Span length 125-175 feet (2,956)
Through truss (9,211)
Total length 125-175 feet (4,137)
Town lattice portal bracing (10)
Truss (23,575)
Upper Iowa River (24)
Winneshiek County, Iowa (74)

Update Log 

  • October 11, 2012: Updated by Jason Smith: Added category "Town lattice portal bracing"
  • February 1, 2012: Updated by Jason Smith: Added information on the bridge- bridge was moved to this location in 1952
  • January 30, 2011: New photos from Benjamin Cole
  • September 30, 2009: New photos from Jason Smith
  • December 19, 2005: Posted photos from Jason and Birgit Smith

Sources 

  • Jason Smith - JDSmith77 [at] gmx [dot] net
  • Benjamin Cole - mountainjam99 [at] gmail [dot] com
  • Historicbridges.org - by Nathan Holth
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Comments 

Chimney Rock Bridge
Posted September 16, 2012, by Tim (tal61 [at] sbcglobal [dot] net)

Continental Bridge Co. from Alexandria Mn. didn't exist until some time in the 1980's. Prior to this a Continental Bridge Co. existed in Peotone Illinois with it's headquarters in Chicago. This was from 1903 - 1948. The assets of the company were bought by Bennett Industries who continued bridge and structural work until 1977.