30TH ST over I-94


+42.34303, -83.11512
42°20'35" N, 83°06'54" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:30TH ST over I-94
Structure number:000000000011178
Old structure number:82182023000S100 (from 1992 edition)
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Local (Urban) [19]
Length of largest span:57.7 ft. [17.6 m]
Total length:177.8 ft. [54.2 m]
Roadway width between curbs:44.0 ft. [13.4 m]
Deck width edge-to-edge:67.6 ft. [20.6 m]
Vertical clearance below bridge:14.1 ft. [4.3 m]
Skew angle:21°
Owner:State Highway Agency [01]
Year built:1951
Year reconstructed:1996
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:4
Main spans material:Steel [3]
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: July 2016 

Status:Open, no restriction [A]
Average daily traffic:6,000 [as of 1994]
Truck traffic:2% of total traffic
Deck condition:Good [7 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:Basically intolerable requiring high priority of replacement [2]
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]
Operating rating:106.9 tons [97.2 metric tons]
Inventory rating:63.8 tons [58.0 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:75.1

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201675.1Functionally obsoleteGoodGoodGood6000
July 201475.1Functionally obsoleteGoodGoodGood6000
July 201275.1Functionally obsoleteGoodGoodGood6000
July 201075.1Functionally obsoleteGoodGoodGood6000
July 200875.1Functionally obsoleteGoodGoodGood6000
July 200675.1Functionally obsoleteGoodGoodGood6000
June 200475.1Not deficientGoodGoodGood6000
June 200275.1Not deficientGoodGoodGood6000
June 200075.1Not deficientGoodGoodGood6000
October 199975.1Not deficientGoodGoodGood6000
July 199846.6Not deficientVery GoodPoorFair6000
April 199760.5Not deficientPoorGoodFair6000
May 199643.3Not deficientPoorPoorFair6000
May 199446.5Structurally deficientFairPoorFair4510
May 199246.5Structurally deficientFairPoorFair4510
April 199046.5Structurally deficientFairPoorFair4510