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LARNED ST over I-375

Map

Coordinates:
+42.33335, -83.03616
42°20'00" N, 83°02'10" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:LARNED ST over I-375
Structure number:000000000011392
Old structure number:82182111000S030 (from 1992 edition)
Location:IN DETROIT
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Collector (Urban) [17]
Length of largest span:53.2 ft. [16.2 m]
Total length:166.3 ft. [50.7 m]
Roadway width between curbs:89.9 ft. [27.4 m]
Deck width edge-to-edge:113.9 ft. [34.7 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1960
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:4
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: June 2018

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:9,000 [as of 1978]
Deck condition:Poor [4 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:63.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018PoorPoorSatisfactoryPoor900063.9
September 2016PoorPoorSatisfactoryPoor900063.9
November 2015PoorPoorSatisfactoryPoor900063.9
November 2014PoorPoorSatisfactoryPoor900063.9
December 2012PoorPoorSatisfactoryPoor900063.9
September 2010PoorPoorSatisfactoryFair900080.4
September 2008PoorSeriousGoodFair900078.3
September 2006PoorSeriousGoodFair900078.3
January 2005PoorSeriousSatisfactoryPoor900063.9
October 2003PoorSeriousSatisfactoryPoor900061.8
December 2002PoorSeriousSatisfactoryPoor900061.8
September 2001PoorSeriousSatisfactoryPoor900063.9
June 2000PoorSeriousSatisfactoryPoor900061.8
July 1998PoorSeriousSatisfactoryFair900078.3
June 1996FairFairGoodSatisfactory900093.7
July 1994FairSatisfactoryGoodGood900094.6
August 1992FairSatisfactoryGoodSatisfactory900094.6
August 1990FairSatisfactoryGoodSatisfactory900094.6

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.3,6592,809800500
Deck
Reinforced Concrete Decksq. ft.18,9587,9588,0003,0000
Wearing Surfacessq. ft.14,9678,4676,0005000
Substructure
Reinforced Concrete Columneach24111120
Reinforced Concrete Abutmentlinear ft.23060100700
Reinforced Concrete Pier Caplinear ft.34417217200
Joints
Strip Seal Jointlinear ft.344003440
Compression Jointlinear ft.1671254200
Bearings
Movable Bearingeach88434410
Fixed Bearingeach88444400
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.3333003300