I0020 over I-20 OVER US 171/HEARNE


+32.47901, -93.77995
32°28'44" N, 93°46'48" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I0020 over I-20 OVER US 171/HEARNE
Structure number:040904510115981
Location:I-20 OVER US 71
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:74.2 ft. [22.6 m]
Total length:215.9 ft. [65.8 m]
Roadway width between curbs:40.4 ft. [12.3 m]
Deck width edge-to-edge:45.6 ft. [13.9 m]
Vertical clearance below bridge:16.7 ft. [5.1 m]
Skew angle:43°
Owner:State Highway Agency [01]
Year built:1965
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:Concrete continuous [2]
Main spans design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: March 2014 

Status:Open, no restriction [A]
Average daily traffic:29,460 [as of 2014]
Truck traffic:29% 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:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:62.4 tons [56.7 metric tons]
Inventory rating:37.6 tons [34.2 metric tons]
Sufficiency rating:81.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
March 201481.0Not deficientSatisfactorySatisfactorySatisfactory29460
March 201281.0Not deficientSatisfactorySatisfactorySatisfactory37260
March 201081.0Not deficientSatisfactorySatisfactorySatisfactory37200
February 200881.0Not deficientSatisfactorySatisfactorySatisfactory44400
February 200681.0Not deficientSatisfactorySatisfactorySatisfactory46320
March 200481.0Not deficientSatisfactorySatisfactorySatisfactory39240
March 200277.9Not deficientSatisfactorySatisfactorySatisfactory34080
March 200077.9Not deficientSatisfactorySatisfactorySatisfactory11755
March 199877.9Not deficientSatisfactorySatisfactorySatisfactory32110
March 199677.9Not deficientSatisfactorySatisfactorySatisfactory31458
May 199477.9Not deficientSatisfactorySatisfactorySatisfactory33601
March 199277.9Not deficientSatisfactorySatisfactorySatisfactory21012