M-3 TO I-375 S RMP over I-75

Map

Coordinates:
+42.34483, -83.04430
42°20'41" N, 83°02'39" W

Source: National Bridge Inventory (1992, 2000, 2010 editions)
Information not verified. Use at your own risk.

Name:	M-3 TO I-375 S RMP over I-75
Structure number:	82182251000S120
Location:	IN DETROIT
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Other Freeways or Expressways (Urban) `[12]`
Length of largest span:	87.9 ft. `[26.8 m]`
Total length:	237.2 ft. `[72.3 m]`
Roadway width between curbs:	27.6 ft. `[8.4 m]`
Deck width edge-to-edge:	30.8 ft. `[9.4 m]`
Vertical clearance below bridge:	15.4 ft. `[4.7 m]`
Skew angle:	99°
Owner:	State Highway Agency `[01]`
Year built:	1963
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]`
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]`

Status:	Open, no restriction `[A]`
Average daily traffic:	10,110 `[as of 1982]`
Truck traffic:	3% of total traffic
Deck condition:	Excellent `[9 out of 9]`
Superstructure condition:	Satisfactory `[6 out of 9]`
Substructure condition:	Poor `[4 out of 9]`
Pier/abutment protection:	Navigation protection not required `[1]`
Scour condition:	Bridge not over waterway. `[N]`
Inventory rating:	70.1 tons `[63.7 metric tons]`
Sufficiency rating:	52.0

Status:	Open, no restriction `[A]`
Average daily traffic:	10,110 `[as of 1982]`
Deck condition:	Fair `[5 out of 9]`
Superstructure condition:	Very Good `[8 out of 9]`
Substructure condition:	Satisfactory `[6 out of 9]`
Pier/abutment protection:	Navigation protection not required `[1]`
Scour condition:	Bridge not over waterway. `[N]`
Inventory rating:	58.4 tons `[53.1 metric tons]`
Evaluation:	Functionally obsolete `[2]`
Sufficiency rating:	93.0