M-3 WB CONN over I-375 & I-75 RAMP

Map

Coordinates:
+42.34414, -83.04222
42°20'39" N, 83°02'32" W

Source: National Bridge Inventory. Information not verified; use at your own risk.

Name:	M-3 WB CONN over I-375 & I-75 RAMP
Structure number:	000000000011811
Old structure number:	82182251000S094 `(from 1992 edition)`
Location:	IN DETROIT OVER I-375 NW
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Other Freeways or Expressways (Urban) `[12]`
Length of largest span:	38.7 ft. `[11.8 m]`
Total length:	38.7 ft. `[11.8 m]`
Roadway width between curbs:	41.3 ft. `[12.6 m]`
Deck width edge-to-edge:	44.9 ft. `[13.7 m]`
Vertical clearance below bridge:	13.1 ft. `[4.0 m]`
Skew angle:	99°
Owner:	State Highway Agency `[01]`
Year built:	1964
Year reconstructed:	1998
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:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Monolithic Concrete (concurrently placed with structural deck) `[1]`

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	22,748 `[as of 2007]`
Deck condition:	Good `[7 out of 9]`
Superstructure condition:	Satisfactory `[6 out of 9]`
Substructure condition:	Satisfactory `[6 out of 9]`
Structural appraisal:	Equal to present minimum criteria `[6]`
Deck geometry appraisal:	Better than present minimum criteria `[7]`
Underclearances appraisal:	Meets minimum tolerable limits to be left in place as is `[4]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Scour condition:	Bridge not over waterway. `[N]`
Sufficiency rating:	98.0

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
March 2018	Fair	Good	Satisfactory	Satisfactory	22748	98.0
March 2016	Fair	Good	Fair	Satisfactory	22748	87.0
March 2014	Fair	Good	Fair	Satisfactory	22748	87.0
March 2012	Fair	Good	Fair	Satisfactory	22748	87.0
March 2010	Fair	Good	Fair	Satisfactory	22748	87.0
May 2008	Fair	Good	Satisfactory	Satisfactory	22748	97.0
May 2006	Fair	Good	Satisfactory	Satisfactory	14166	97.0
June 2004	Fair	Very Good	Satisfactory	Satisfactory	14360	97.0
May 2002	Fair	Very Good	Satisfactory	Satisfactory	14360	97.0
May 2000	Fair	Very Good	Satisfactory	Satisfactory	14360	97.0
August 1998	Fair	Fair	Fair	Satisfactory	14360	77.0
September 1996	Fair	Satisfactory	Good	Good	14360	97.0
August 1994	Fair	Satisfactory	Very Good	Good	14360	97.0
August 1992	Fair	Satisfactory	Very Good	Satisfactory	14360	97.0
June 1990	Good	Good	Very Good	Good	14360	97.0

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.

Element	Units	Quantity	1-Good	2-Fair	3-Poor	4-Serious
Superstructure
Steel Girder/Beam	linear ft.	312	297	15	0	0
Steel Protective Coating	sq. ft.	2,359	2,335	24	0	0
Deck
Reinforced Concrete Deck	sq. ft.	1,701	1,701	0	0	0
Substructure
Reinforced Concrete Abutment	linear ft.	112	100	12	0	0
Joints
Pourable Joint	linear ft.	112	69	43	0	0
Bearings
Movable Bearing	each	8	8	0	0	0
Fixed Bearing	each	8	8	0	0	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	118	59	59	0	0