S. R. 184 over ANN ARBOR R.R.


+41.72245, -83.53130
41°43'21" N, 83°31'53" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:S. R. 184 over ANN ARBOR R.R.
Structure number:4805119
Location:1.5 MILE WEST OF I-75.
Purpose:Carries highway and pedestrian walkway over railroad
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:66.9 ft. [20.4 m]
Total length:232.0 ft. [70.7 m]
Roadway width between curbs:54.1 ft. [16.5 m]
Deck width edge-to-edge:72.2 ft. [22.0 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Skew angle:24°
Owner:State Highway Agency [01]
Year built:1975
Year reconstructed:2013
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 continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

Latest Available Inspection: February 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:23,580 [as of 2015]
Truck traffic:16% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:68.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
February 2018GoodVery GoodGoodVery Good2358068.0
March 2017GoodVery GoodGoodVery Good2358068.0
March 2016GoodVery GoodGoodVery Good2358068.0
March 2015GoodVery GoodGoodVery Good2764068.0
February 2014FairExcellentGoodSatisfactory2764068.0
March 2012PoorSeriousFairFair2764052.0
March 2011PoorSeriousFairFair2764052.0
March 2010PoorSeriousFairSatisfactory3021052.0
March 2009PoorSeriousFairSatisfactory3021052.0
April 2008PoorPoorFairSatisfactory3021054.0
March 2007PoorPoorFairSatisfactory2934054.0
March 2006FairFairFairSatisfactory2722056.0
March 2005FairFairFairSatisfactory2722056.0
March 2004FairFairFairSatisfactory2722056.0
March 2003FairFairFairSatisfactory2722056.0
April 2002FairFairFairSatisfactory2722056.0
April 2001FairSatisfactorySatisfactorySatisfactory2722068.0
April 2000FairSatisfactorySatisfactorySatisfactory2533068.0
April 1999FairSatisfactorySatisfactorySatisfactory2533065.0
April 1998FairSatisfactorySatisfactorySatisfactory2652065.0
May 1996FairSatisfactorySatisfactorySatisfactory2652065.0
May 1995FairSatisfactorySatisfactorySatisfactory2527066.0
April 1994FairFairSatisfactorySatisfactory2527065.0
May 1993FairSatisfactorySatisfactorySatisfactory2527066.0
April 1992FairGoodSatisfactoryGood2527066.0
April 1991FairGoodSatisfactoryGood2527069.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.2,3202,29017130
Reinforced Concrete Decksq. ft.16,78216,782000
Reinforced Concrete Pier Walllinear ft.9090000
Reinforced Concrete Abutmentlinear ft.159159000
Reinforced Concrete Pier Caplinear ft.238238000
Movable Bearingeach5050000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.464464000