US 31 over 21 ST AVE SO


+33.49168, -86.78677
33°29'30" 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:008235
Old structure number:00000003370097A (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:18.4 ft. [5.6 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:39,880 [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]
Operating rating:50.3 tons [45.7 metric tons]
Inventory rating:30.1 tons [27.4 metric tons]
Sufficiency rating:67.3
Estimated cost of work:$2,264,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201767.3FairSatisfactorySatisfactorySatisfactory-39880
February 201587.4FairSatisfactorySatisfactoryGood-39880
February 201387.4FairSatisfactorySatisfactoryGood-39965
February 201187.4FairSatisfactorySatisfactoryGood-39030
February 200987.1GoodGoodGoodGood-42145
February 200792.4GoodGoodGoodGood-37770
February 200592.6GoodGoodGoodVery Good-35920
February 200392.6GoodGoodGoodVery Good-35780
April 200192.6GoodGoodGoodVery Good-35780
April 199991.9GoodGoodGoodVery Good-42545
December 199692.2GoodGoodGoodVery Good-39815
January 199593.0GoodGoodGoodVery Good-39245
December 199292.1GoodGoodGoodVery Good-37690
November 199092.0GoodGoodGoodGood-39660

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Reinforced Concrete Girder/Beamlinear ft.1,1691,169000
Reinforced Concrete Decksq. ft.8,38108,37362
Wearing Surfacessq. ft.7,7967,796000
Reinforced Concrete Columneach66000
Reinforced Concrete Abutmentlinear ft.130130000
Reinforced Concrete Pier Caplinear ft.8888000
Strip Seal Jointlinear ft.9500095
Movable Bearingeach1806120
Fixed Bearingeach66000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.390387300