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TH 77 NB over MINNESOTA R ; BLACK DOG

Map

Coordinates:
+44.82728, -93.23130
44°49'38" N, 93°13'53" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:TH 77 NB over MINNESOTA R ; BLACK DOG
Structure number:9600N
Location:1.0 MI N OF JCT TH 13
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:359.9 ft. [109.7 m]
Total length:5159.4 ft. [1572.5 m]
Roadway width between curbs:56.4 ft. [17.2 m]
Deck width edge-to-edge:59.7 ft. [18.2 m]
Vertical clearance above deck:18.0 ft. [5.5 m]
Vertical clearance below bridge:52.5 ft. [16.0 m]
Owner:State Highway Agency [01]
Year built:1978
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Main span material:Steel [3]
Main span design:Arch - Thru [12]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Low slump Concrete [4]

Latest Available Inspection: July 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:47,500 [as of 2017]
Truck traffic:3% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Better than present minimum criteria [7]
Underclearances appraisal:Superior to present desirable criteria [9]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:78.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2018FairSatisfactoryFairSatisfactory4750078.9
July 2017FairSatisfactorySatisfactorySatisfactory4700090.6
July 2016FairSatisfactorySatisfactorySatisfactory4700090.6
July 2015FairSatisfactorySatisfactorySatisfactory4700090.6
July 2014FairSatisfactorySatisfactorySatisfactory4700090.6
July 2013FairSatisfactorySatisfactorySatisfactory4700090.6
July 2012FairSatisfactorySatisfactorySatisfactory4700090.6
June 2011FairSatisfactorySatisfactorySatisfactory4700090.6
September 2010FairSatisfactorySatisfactorySatisfactory4700090.6
May 2009FairSatisfactorySatisfactoryGood4700090.6
July 2008FairSatisfactorySatisfactoryGood4700090.6
June 2007FairSatisfactorySatisfactoryGood4700090.6
May 2006FairSatisfactorySatisfactoryGood4700090.6
May 2005FairSatisfactorySatisfactoryGood4700089.5
July 2004FairSatisfactorySatisfactoryGood4500089.7
June 2003FairSatisfactorySatisfactoryGood4500089.7
August 2002FairSatisfactorySatisfactoryGood4650089.6
June 2001FairGoodSatisfactoryGood4650084.3
April 2000FairGoodSatisfactoryGood4650089.6
September 1999FairGoodSatisfactoryGood4650089.6
July 1998FairGoodSatisfactoryGood4650089.6
July 1997FairGoodSatisfactoryGood4650092.8
October 1996GoodGoodGoodGood4650092.8
June 1995GoodGoodGoodGood5000088.2
June 1994GoodGoodGoodGood3800089.1
November 1993GoodGoodGoodGood3800089.1
October 1990GoodGoodGoodVery Good3250089.5

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Closed Web/Box Girderlinear ft.72006001200
Steel Protective Coatingsq. ft.31,80025,8002,0002,0002,000
Prestressed Concrete Girder/Beamlinear ft.33,54333,358153320
Steel Stringerlinear ft.2,5202,4570630
Steel Protective Coatingsq. ft.21,20021,200000
Deck
Reinforced Concrete Decksq. ft.308,514305,4472,7093580
Wearing Surfacessq. ft.291,486289,3122,16680
Superstructure
Steel Archlinear ft.7887700180
Steel Protective Coatingsq. ft.13,80013,800000
Steel Secondary Cableeach4404400
Steel Protective Coatingsq. ft.2,4006251,7252525
Steel Floor Beamlinear ft.78066401160
Steel Protective Coatingsq. ft.22,80022,7901000
Steel Gusset Plateeach40040
Steel Protective Coatingsq. ft.130130000
Substructure
Reinforced Concrete Columneach8480400
Reinforced Concrete Pier Walllinear ft.150015000
Reinforced Concrete Abutmentlinear ft.2041842000
Reinforced Concrete Pier Caplinear ft.2,5012,237179823
Joints
Strip Seal Jointlinear ft.816178620135
Pourable Jointlinear ft.118059590
Assembly with Sealeach6060000
Bearings
Elastomeric Bearingeach1264625550
Movable Bearingeach74363260
Fixed Bearingeach497495200
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.10,3294,3244,7651,22515