Rating:
2 votes

Black Bridge

Tama County, Iowa

Photos 

Photo taken by Ray Kasal

Enlarge

BH Photo #133075

Map 

Facts 

Overview
Through truss bridge over Iowa River on 360th Street
Location
Tama County, Iowa
Status
Open to traffic
History
Built 1914; rehabilitated 1972
Design
Main span: Pin-connected, 9-panel Pratt through truss
Dimensions
Length of largest span: 168.0 ft.
Total length: 250.0 ft.
Deck width: 14.8 ft.
Vertical clearance above deck: 15.3 ft.
Approximate latitude, longitude
+41.91990, -92.43412   (decimal degrees)
41°55'12" N, 92°26'03" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/546923/4641037 (zone/easting/northing)
Quadrangle map:
Chelsea
Land survey
T. 82 N., R. 14 W., Sec. 13
Average daily traffic (as of 2017)
40
Inventory numbers
IA 316740 (Iowa bridge number)
BH 14469 (Bridgehunter.com ID)
Inspection report (as of October 2017)
Sufficiency rating: 16.4 (out of 100)
View more at BridgeReports.com

Categories 

9-panel truss (133)
Built 1914 (763)
Built during 1910s (9,210)
Historic Bridge Weekend 2013 (145)
Iowa (6,174)
Iowa River (129)
Lally columns (291)
One-lane traffic (7,535)
Open (38,342)
Owned by county (19,907)
Pin-connected (3,675)
 Pratt through truss (4,933)
Pratt truss (8,623)
Riveted (2,037)
Span length 125-175 feet (3,973)
Structurally deficient (16,422)
Tama County, Iowa (101)
Through truss (13,905)
Total length 250-500 feet (4,855)
Truss (31,052)
Warren Riveted Pony Truss w/ alternating verticals (8)
Wooden deck (5,996)

Update Log 

  • August 19, 2017: Updated by Christopher Finigan: Added categories "Riveted", "Warren Riveted Pony Truss w/ alternating verticals"
  • March 25, 2012: New photo from Ray Kasal
  • March 7, 2012: Updated by Luke Harden: chnaged name to the common name
  • November 27, 2011: New photos from Quinn Phelan
  • February 22, 2009: New photo from Ray Kasal
  • February 20, 2009: Updated by Ray Kasal

Sources 

  • Ray Kasal - raykasal [at] yahoo [dot] com
  • Quinn Phelan - qphelan [at] earthlink [dot] net
  • Luke
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Comments 

Iowa River Bridge
Posted February 6, 2009, by Ray Kasal (rams1 [at] iowatelecom [dot] net)

This bridge is located 3.5 miles west of Chelsea. A few years ago someone tried to start a fire on the bridge planking. Local fire dept. put out the fire and it now has a steel plate covering the small burned hole.

Webmaster's note: The photo that was here has been incorporated into the main site.