+34.71667, -86.58333
34°43'00" N, 86°34'60" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US231; US431; SR1 over NORFOLK SOUTHERN
Structure number:015407
Old structure number:00000001450221A (from 1992 edition)
Location:0.6 MI N JCT US231 *431
Purpose:Carries highway over highway and railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:144.0 ft. [43.9 m]
Total length:430.1 ft. [131.1 m]
Roadway width between curbs:76.1 ft. [23.2 m]
Deck width edge-to-edge:78.7 ft. [24.0 m]
Vertical clearance below bridge:24.9 ft. [7.6 m]
Owner:State Highway Agency [01]
Year built:1991
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:4
Main spans material:Steel [3]
Main spans 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 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:58,235 [as of 2015]
Truck traffic:2% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:47.9 tons [43.5 metric tons]
Inventory rating:36.0 tons [32.7 metric tons]
Sufficiency rating:94.5
Estimated cost of work:$8,270,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
October 201594.5FairGoodGoodSatisfactory-58235
October 201394.8FairGoodGoodSatisfactory-55995
October 201194.7FairGoodGoodSatisfactory-56407
October 200994.8FairGoodGoodSatisfactory-55575
October 200794.8GoodGoodGoodGood-55960
October 200595.2GoodGoodGoodGood-51745
October 200395.3GoodGoodGoodGood-49655
September 200195.3GoodGoodGoodGood-49655
October 199993.2GoodGoodGoodGood-51000
September 199793.6GoodGoodGoodVery Good-46905
September 199594.5GoodGoodGoodVery Good-46905
September 199395.7GoodGoodGoodVery Good-30745
November 199195.8GoodGoodGoodVery Good-29995

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.14,62813,86676020
Steel Protective Coatingsq. ft.75,202074,5996030
Reinforced Concrete Decksq. ft.33,97033,8749600
Reinforced Concrete Columneach1212000
Reinforced Concrete Abutmentlinear ft.1521361600
Steel Pier Caplinear ft.8383000
Steel Protective Coatingsq. ft.934093400
Reinforced Concrete Pier Caplinear ft.7997821610
Compression Jointlinear ft.168168000
Assembly with Sealeach5050000
Movable Bearingeach4343000
Steel Protective Coatingsq. ft.187018700
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,017869401080