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NB I-75 BL over I-75 SB

Map

Coordinates:
+44.64470, -84.70786
44°38'41" N, 84°42'28" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NB I-75 BL over I-75 SB
Structure number:000000000002035
Old structure number:20120014000S030 (from 1992 edition)
Location:@ S JCT I-75 BL
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Rural) [01]
Length of largest span:88.9 ft. [27.1 m]
Total length:204.7 ft. [62.4 m]
Roadway width between curbs:21.7 ft. [6.6 m]
Deck width edge-to-edge:25.9 ft. [7.9 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:50°
Owner:State Highway Agency [01]
Year built:1961
Year reconstructed:2008
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:3
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: March 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:4,810 [as of 2007]
Truck traffic:10% of total traffic
Deck condition:Good [7 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:96.2

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2018GoodGoodGoodGood481096.2
March 2016GoodGoodGoodGood481096.2
April 2014GoodGoodGoodGood481096.2
April 2012GoodGoodGoodGood481096.2
February 2011GoodGoodGoodGood481096.2
February 2009GoodGoodGoodGood481097.2
February 2007FairSatisfactoryGoodGood403992.4
February 2005FairSatisfactoryGoodSatisfactory800090.8
February 2003FairSatisfactoryGoodSatisfactory800089.7
February 2001FairSatisfactoryGoodSatisfactory800089.7
August 1999FairSatisfactoryGoodSatisfactory800089.7
August 1997FairSatisfactoryGoodGood800089.7
July 1995FairSatisfactoryGoodGood620091.5
June 1993FairSatisfactoryGoodGood620091.5
April 1991FairSatisfactoryGoodGood620091.5

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.1,01589112400
Steel Protective Coatingsq. ft.10,94910,84010900
Deck
Reinforced Concrete Decksq. ft.5,2785,278000
Wearing Surfacessq. ft.4,2634,263000
Substructure
Reinforced Concrete Columneach62220
Concrete Protective Coatingsq. ft.958958000
Reinforced Concrete Abutmentlinear ft.1511312000
Concrete Protective Coatingsq. ft.1,2721,272000
Reinforced Concrete Pier Caplinear ft.78354300
Concrete Protective Coatingsq. ft.1,1881,188000
Joints
Strip Seal Jointlinear ft.7070000
Pourable Jointlinear ft.70005119
Bearings
Movable Bearingeach1501500
Fixed Bearingeach156900
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.41036030200
Concrete Protective Coatingsq. ft.3,2803,280000