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I-75, INT'L BRIDGE over ST MARY RIV/PORTAGE AV W

Map

Coordinates:
+46.50842, -84.36065
46°30'30" N, 84°21'38" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-75, INT'L BRIDGE over ST MARY RIV/PORTAGE AV W
Structure number:000000000001582
Old structure number:17117034000B010 (from 1992 edition)
Location:IN SAULT STE MARIE
Purpose:Carries highway over highway, waterway, and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Tolls:Yes [1]
Length of largest span:430.1 ft. [131.1 m]
Total length:9280.6 ft. [2828.6 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:34.5 ft. [10.5 m]
Vertical clearance above deck:17.1 ft. [5.2 m]
Vertical clearance below bridge:121.4 ft. [37.0 m]
Owner:State Toll Authority [31]
Year built:1962
Historic significance:Bridge is on the National Register of Historic Places [1]
Design load:MS 18 / HS 20 [5]
Number of main spans:8
Main spans material:Steel continuous [4]
Main spans design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Low slump Concrete [4]

Latest Available Inspection: August 2018

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:5,242 [as of 2007]
Truck traffic:9% 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:54.7

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2018FairSatisfactorySatisfactorySatisfactory524254.7
August 2017FairSatisfactoryGoodSatisfactory524254.7
August 2016FairSatisfactorySatisfactorySatisfactory524254.7
August 2015FairSatisfactorySatisfactoryGood524251.0
August 2014FairSatisfactorySatisfactoryGood524255.0
August 2013FairSatisfactorySatisfactoryGood524255.0
August 2012FairSatisfactorySatisfactoryGood524255.0
August 2011FairSatisfactoryGoodGood524255.0
August 2009FairSatisfactoryGoodGood524257.0
September 2007FairFairVery GoodGood509056.0
October 2006FairFairVery GoodGood509056.0
September 2004FairFairVery GoodGood1890056.0
September 2002GoodExcellentVery GoodGood1890054.0
September 1993GoodGoodGoodGood890054.0
September 1992GoodGoodGoodGood948054.0
September 1990GoodGoodGoodGood901052.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.12,66710,9979976712
Steel Protective Coatingsq. ft.335,549326,4299,11307
Steel Stringerlinear ft.24,74723,50598024022
Steel Protective Coatingsq. ft.157,922150,0517,48634045
Deck
Reinforced Concrete Decksq. ft.227,170227,170000
Wearing Surfacessq. ft.267,126120,717146,3091000
Superstructure
Steel Trusslinear ft.4,7383,0611,667100
Steel Protective Coatingsq. ft.125,88093,15127,6943,7761,259
Steel Floor Beamlinear ft.9,1278,3136871270
Steel Protective Coatingsq. ft.118,147113,7474,40000
Steel Gusset Plateeach6564401001124
Steel Protective Coatingsq. ft.59,67036,57620,8511,943300
Substructure
Reinforced Concrete Columneach94514120
Reinforced Concrete Pier Walllinear ft.19311852230
Reinforced Concrete Abutmentlinear ft.925810240
Reinforced Concrete Pile Cap/Footinglinear ft.2422162060
Reinforced Concrete Pier Caplinear ft.1,9271,570299580
Joints
Strip Seal Jointlinear ft.477104324337
Pourable Jointlinear ft.1,01048526144220
Compression Jointlinear ft.3535000
Open Jointlinear ft.1401251500
Assembly without Seal Jointlinear ft.90741349400
Bearings
Movable Bearingeach1827810310
Steel Protective Coatingsq. ft.1,8981,63226600
Fixed Bearingeach160639430
Steel Protective Coatingsq. ft.1,6201,35226080
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.37,0308,12511,14517,74416
Steel Protective Coatingsq. ft.175,24719,797114,21641,2340