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I-55 over I-55 / MILL BRANCH RD

Map

Coordinates:
+35.04597, -90.00725
35°02'45" N, 90°00'26" W

Facts

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:13.1 ft. [4.0 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]
Sufficiency rating:91.6

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
January 2017FairSatisfactoryGoodSatisfactory9221091.6
February 2015FairSatisfactoryGoodSatisfactory8848089.7
February 2013FairSatisfactoryGoodGood8554089.8
March 2011FairSatisfactoryGoodGood8312089.9
April 2009FairSatisfactoryGoodGood8831089.7
June 2007FairSatisfactoryGoodGood9070089.5
August 2005FairSatisfactoryGoodGood7750092.3
August 2003FairSatisfactoryGoodGood7233092.5
September 2002FairSatisfactoryGoodGood6616092.8
September 2001FairFairSatisfactorySatisfactory7103070.1
January 2000FairFairSatisfactorySatisfactory6112066.9
December 1997FairFairSatisfactorySatisfactory6431068.5
August 1995FairFairGoodSatisfactory6011066.1
August 1993FairFairGoodSatisfactory5331066.8
November 1991FairFairGoodSatisfactory5291075.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.7,1947,194000
Steel Protective Coatingsq. ft.7,1947,194000
Deck
Reinforced Concrete Decksq. ft.470,801470,26953200
Substructure
Reinforced Concrete Columneach5151000
Reinforced Concrete Abutmentlinear ft.576576000
Reinforced Concrete Pier Caplinear ft.864861300
Bearings
Fixed Bearingeach6666000
Steel Protective Coatingsq. ft.6666000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.654654000