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550TH AVE over KEIGLEY BRANCH

Map 

Coordinates:
+42.23611, -94.00278
42°14'10" N, 94°00'10" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:550TH AVE over KEIGLEY BRANCH
Structure number:000000000316480
Location:085243602
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:44.9 ft. [13.7 m]
Total length:46.9 ft. [14.3 m]
Owner:County Highway Agency [02]
Year built:1913
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Main span material:Concrete [1]
Main span design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: December 2010 

Status:Open, no restriction [A]
Average daily traffic:80 [as of 2007]
Truck traffic:13% of total traffic
Structural appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Culvert condition:Deterioration or initial disintegration, minor chloride contamination, cracking with some leaching, or spalls on concrete or masonry walls and slabs. Local minor scouring at curtain walls, wingwalls or pipes. Metal culverts have a smooth curvature, non-symmetrical shape, significant corrosion or moderate pitting. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:37.6 tons [34.2 metric tons]
Inventory rating:26.7 tons [24.3 metric tons]
Sufficiency rating:92.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
December 201092.5Not deficient---80
December 200889.5Not deficient---80
November 200673.7Not deficient---160
November 200473.7Not deficient---160
December 200273.5Not deficient---160
March 200173.4Not deficient---160
January 199973.5Not deficient---110
October 199673.5Not deficient---110
March 199573.5Not deficient---110
October 199273.5Not deficient---110
February 199173.5Not deficient---110