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STH 70 over ST CROIX RIVER 08

Map

Coordinates:
+45.77332, -92.78199
45°46'24" N, 92°46'55" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:STH 70 over ST CROIX RIVER 08
Structure number:B07002000000000
Location:AT MINNESOTA STATE LINE
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:107.0 ft. [32.6 m]
Total length:605.3 ft. [184.5 m]
Roadway width between curbs:38.7 ft. [11.8 m]
Deck width edge-to-edge:47.6 ft. [14.5 m]
Owner:State Highway Agency [01]
Year built:1991
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:6
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: October 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:3,800 [as of 2016]
Truck traffic:12% of total traffic
Deck condition:Satisfactory [6 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]
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]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:90.3

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2018FairSatisfactoryGoodGood380090.3
October 2016FairSatisfactoryGoodGood330091.5
October 2014FairSatisfactoryGoodGood330091.5
May 2013FairSatisfactoryGoodGood330091.5
May 2011FairSatisfactoryGoodGood360090.8
June 2009FairSatisfactoryGoodGood370084.6
July 2008FairSatisfactoryGoodGood370084.6
May 2007FairSatisfactoryGoodGood370084.6
May 2006FairSatisfactoryGoodGood350085.4
June 2004FairSatisfactoryGoodGood340085.8
April 2003FairSatisfactoryGoodGood340085.8
July 2002GoodGoodVery GoodGood340085.8
September 2000GoodGoodVery GoodGood340085.8
October 1998GoodGoodVery GoodGood310086.9
May 1997GoodVery GoodVery GoodVery Good310086.9
February 1996GoodVery GoodVery GoodVery Good256089.0
February 1995GoodVery GoodExcellentExcellent256089.0
June 1993GoodVery GoodExcellentExcellent249089.2
April 1992GoodExcellentExcellentExcellent177093.0
December 1991GoodExcellentExcellentExcellent177093.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.2,4212,32110000
Steel Protective Coatingsq. ft.33,88032,8801,00000
Deck
Reinforced Concrete Decksq. ft.28,79328,301476160
Substructure
Reinforced Concrete Columneach2517800
Reinforced Concrete Abutmentlinear ft.9593200
Joints
Strip Seal Jointlinear ft.9595000
Bearings
Movable Bearingeach2424000
Fixed Bearingeach44000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.623623000
Reinforced Concrete Bridge Raillinear ft.1,23082840200