I-55 over I-55 / MILL BRANCH RD


+35.04583, -90.00722
35°02'45" N, 90°00'26" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I-55 over I-55 / MILL BRANCH RD
Structure number:79I00550021
Location:3.5 MI N OF MISS STA LINE
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:94.5 ft. [28.8 m]
Total length:327.1 ft. [99.7 m]
Roadway width between curbs:140.8 ft. [42.9 m]
Deck width edge-to-edge:144.0 ft. [43.9 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:1960
Year reconstructed:2002
Historic significance:Historical significance is not determinable at this time [4]
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: January 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:92,210 [as of 2015]
Truck traffic:13% of total traffic
Deck condition:Satisfactory [6 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: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:58.4 tons [53.1 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:91.6

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
January 201791.6FairSatisfactoryGoodSatisfactory-92210
February 201589.7FairSatisfactoryGoodSatisfactoryFO88480
February 201389.8FairSatisfactoryGoodGoodFO85540
March 201189.9FairSatisfactoryGoodGoodFO83120
April 200989.7FairSatisfactoryGoodGood-88310
June 200789.5FairSatisfactoryGoodGood-90700
August 200592.3FairSatisfactoryGoodGood-77500
August 200392.5FairSatisfactoryGoodGood-72330
September 200292.8FairSatisfactoryGoodGood-66160
September 200170.1FairFairSatisfactorySatisfactory-71030
January 200066.9FairFairSatisfactorySatisfactory-61120
December 199768.5FairFairSatisfactorySatisfactory-64310
August 199566.1FairFairGoodSatisfactory-60110
August 199366.8FairFairGoodSatisfactory-53310
November 199175.0FairFairGoodSatisfactory-52910