SR 151 (SBL) over I-75


+34.91022, -85.12696
34°54'37" N, 85°07'37" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 151 (SBL) over I-75
Structure number:000000004700220
Purpose:Carries highway over highway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:75.1 ft. [22.9 m]
Total length:235.9 ft. [71.9 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:32.8 ft. [10.0 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:22°
Owner:State Highway Agency [01]
Year built:1961
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:4
Main spans material:Steel continuous [4]
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: November 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:22,630 [as of 2011]
Truck traffic:1% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:75.6
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$1,383,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2017FairSatisfactoryGoodGood2263075.6
December 2016FairSatisfactoryGoodGood2263075.6
December 2014GoodGoodGoodGood2263075.6
January 2013GoodGoodGoodGood2263078.6
January 2011GoodGoodGoodGood1245079.3
January 2009GoodGoodVery GoodGood1245079.3
November 2006GoodGoodVery GoodGood1110079.3
December 2004GoodGoodVery GoodGood2277078.6
November 2002GoodGoodGoodGood2190078.7
November 2000GoodGoodGoodGood1676079.0
February 1999GoodGoodGoodGood1676079.0
November 1996FairSatisfactoryFairGood1676067.8
October 1994FairSatisfactoryFairGood1676067.1
December 1992FairSatisfactoryFairGood1676067.1
November 1990FairSatisfactoryFairGood1676067.1

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,1801,180000
Steel Protective Coatingsq. ft.11,19711,197000
Reinforced Concrete Decksq. ft.7,74007,73730
Reinforced Concrete Columneach66000
Reinforced Concrete Abutmentlinear ft.7676000
Reinforced Concrete Pier Caplinear ft.9393000
Compression Jointlinear ft.155001550
Movable Bearingeach2002000
Steel Protective Coatingsq. ft.2002000
Fixed Bearingeach1501500
Steel Protective Coatingsq. ft.1551000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.472466060