SR 31 (NBL) over I-75 (EXIT 11) SR 31 (NB


+30.75084, -83.27366
30°45'03" N, 83°16'25" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SR 31 (NBL) over I-75 (EXIT 11) SR 31 (NB
Structure number:000000018500120
Purpose:Carries highway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:89.9 ft. [27.4 m]
Total length:274.0 ft. [83.5 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:34.1 ft. [10.4 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Skew angle:40°
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: February 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:8,490 [as of 2012]
Truck traffic:1% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 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:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:45.5 tons [41.4 metric tons]
Inventory rating:26.7 tons [24.3 metric tons]
Sufficiency rating:79.0
Estimated cost of work:$1,168,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
February 201679.0FairFairGoodGood-8490
February 201479.0FairFairGoodGood-8490
February 201280.0FairFairGoodGood-9120
February 201068.1FairFairGoodGoodFO5160
February 200868.1FairFairGoodGoodFO5160
February 200678.4FairFairGoodGoodFO1250
February 200476.7FairFairGoodGoodFO5400
January 200276.7FairFairGoodGoodFO5500
March 200076.7FairFairGoodGoodFO5680
April 199878.6FairFairGoodGoodFO5680
March 199679.6FairFairGoodGoodFO5680
March 199479.4FairFairGoodGoodFO5680
May 199279.4FairFairGoodGoodFO5680
June 199080.5GoodGoodGoodGoodFO5680

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.1,2761,276000
Steel Protective Coatingsq. ft.11,21511,215000
Reinforced Concrete Decksq. ft.9,3166,3182,99800
Reinforced Concrete Columneach66000
Reinforced Concrete Abutmentlinear ft.9696000
Reinforced Concrete Pier Caplinear ft.114114000
Pourable Jointlinear ft.150001500
Movable Bearingeach1616000
Steel Protective Coatingsq. ft.1616000
Fixed Bearingeach1616000
Steel Protective Coatingsq. ft.1616000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.548548000