M-46 (EXTEN) over US-131


+43.42484, -85.49553
43°25'29" N, 85°29'44" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:M-46 (EXTEN) over US-131
Structure number:000000000007427
Old structure number:59159012000S120 (from 1992 edition)
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:124.0 ft. [37.8 m]
Total length:368.1 ft. [112.2 m]
Roadway width between curbs:49.2 ft. [15.0 m]
Deck width edge-to-edge:51.8 ft. [15.8 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:18°
Owner:State Highway Agency [01]
Year built:1979
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:3
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: October 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:6,427 [as of 2007]
Truck traffic:18% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:85.9 tons [78.1 metric tons]
Inventory rating:51.4 tons [46.7 metric tons]
Sufficiency rating:99.4
Recommended work:Bridge deck replacement with only incidental widening. [37]
Estimated cost of work:$192,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
October 201599.4GoodGoodVery GoodGood-6427
October 201399.4GoodGoodVery GoodGood-6427
November 201199.4GoodGoodVery GoodGood-6427
April 200899.4GoodGoodVery GoodGood-6427
April 200699.4GoodGoodVery GoodGood-6261
April 200499.4GoodGoodVery GoodGood-6600
May 200299.4GoodGoodVery GoodGood-6600
August 200099.4GoodGoodVery GoodGood-6600
August 199899.4GoodGoodVery GoodGood-6600
July 199697.4GoodGoodVery GoodGood-6600
May 199497.5GoodGoodVery GoodGood-7100
May 199297.5GoodVery GoodVery GoodGood-7100
May 199097.5GoodVery GoodVery GoodGood-7100

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.2,3982,3593900
Steel Protective Coatingsq. ft.4343000
Reinforced Concrete Decksq. ft.18,81518,815000
Reinforced Concrete Columneach1010000
Reinforced Concrete Abutmentlinear ft.112922000
Reinforced Concrete Pier Caplinear ft.112112000
Pourable Jointlinear ft.207207000
Compression Jointlinear ft.104104000
Other Jointlinear ft.104104000
Movable Bearingeach2121000
Fixed Bearingeach77000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.72552819700