US 31 over 21 ST AVE SO


+33.49250, -86.78667
33°29'33" N, 86°47'12" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 31 over 21 ST AVE SO
Structure number:008236
Old structure number:00000003370097B (from 1992 edition)
Location:US 31 * 21 ST AVE SO
Purpose:Carries highway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:74.2 ft. [22.6 m]
Total length:194.9 ft. [59.4 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:43.0 ft. [13.1 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:25°
Owner:State Highway Agency [01]
Year built:1964
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: February 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:42,050 [as of 2017]
Truck traffic:3% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:67.0
Estimated cost of work:$2,264,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
February 2017FairSatisfactorySatisfactorySatisfactory4205067.0
February 2015FairSatisfactoryGoodGood4205067.0
February 2013FairSatisfactoryGoodGood4213567.0
February 2011FairSatisfactoryGoodGood3949569.3
February 2009GoodGoodGoodGood4265068.9
February 2007GoodGoodGoodVery Good4310073.8
February 2005GoodGoodGoodVery Good4112074.0
February 2003GoodGoodGoodVery Good4091574.1
April 2001GoodGoodGoodVery Good4091574.1
April 1999GoodGoodGoodVery Good4254573.9
December 1996GoodGoodGoodVery Good3981574.2
January 1995GoodGoodGoodVery Good3924575.2
December 1992GoodGoodGoodVery Good3769074.4
November 1990GoodGoodVery GoodVery Good3966074.2

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Reinforced Concrete Girder/Beamlinear ft.1,1691,02214520
Reinforced Concrete Top Flangesq. ft.8,3816,4791,887132
Wearing Surfacessq. ft.7,79607,79600
Reinforced Concrete Columneach65100
Reinforced Concrete Abutmentlinear ft.120116400
Reinforced Concrete Pier Caplinear ft.8075500
Compression Jointlinear ft.8600860
Movable Bearingeach1806120
Fixed Bearingeach60600
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.3903642240