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IRR/COUNTY HIGHWAY over SOUTH BLACKBIRD CREEK

Map

Coordinates:
+42.03167, -96.36833
42°01'54" N, 96°22'06" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IRR/COUNTY HIGHWAY over SOUTH BLACKBIRD CREEK
Structure number:C008703615
Location:1.5S 7.5E OF ROSALIE
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:115.2 ft. [35.1 m]
Total length:120.1 ft. [36.6 m]
Roadway width between curbs:20.0 ft. [6.1 m]
Deck width edge-to-edge:22.3 ft. [6.8 m]
Skew angle:30°
Owner:County Highway Agency [02]
Year built:2011
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: October 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:30 [as of 2003]
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present minimum criteria [6]
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]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:98.9
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2017GoodVery GoodVery GoodVery Good3098.9
October 2015GoodVery GoodVery GoodVery Good3098.9
October 2013FairVery GoodVery GoodFair3082.9
October 2011PoorFairSatisfactorySerious3038.0
October 2009PoorFairSatisfactorySerious3038.0
October 2007PoorFairSatisfactorySerious3038.0
October 2005FairFairSatisfactoryVery Good3067.1
October 2003FairFairSatisfactoryVery Good3067.1
November 2001FairSatisfactorySatisfactoryVery Good3068.1
November 1999FairSatisfactorySatisfactoryVery Good3068.1
September 1997FairSatisfactorySatisfactoryVery Good3068.1
September 1995FairSatisfactorySatisfactoryVery Good3068.1
October 1993PoorFairFairPoor3034.0
July 1991FairFairFairFair3032.8