I-75 SB over D&M RR

Map

Coordinates:
+44.99084, -84.68137
44°59'27" N, 84°40'53" W

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

Name:	I-75 SB over D&M RR
Structure number:	000000000008671
Old structure number:	69169013000R012 `(from 1992 edition)`
Location:	2.7 MI S OF M-32
Purpose:	Carries highway over railroad
Route classification:	Principal Arterial - Interstate (Rural) `[01]`
Length of largest span:	65.0 ft. `[19.8 m]`
Total length:	193.9 ft. `[59.1 m]`
Roadway width between curbs:	38.1 ft. `[11.6 m]`
Deck width edge-to-edge:	43.6 ft. `[13.3 m]`
Vertical clearance below bridge:	23.0 ft. `[7.0 m]`
Skew angle:	45°
Owner:	State Highway Agency `[01]`
Year built:	1962
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:	3
Main spans material:	Steel `[3]`
Main spans design:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Epoxy Overlay `[5]`

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	6,791 `[as of 2007]`
Truck traffic:	10% of total traffic
Deck condition:	Fair `[5 out of 9]`
Superstructure condition:	Good `[7 out of 9]`
Substructure condition:	Satisfactory `[6 out of 9]`
Structural appraisal:	Equal to present minimum criteria `[6]`
Deck geometry appraisal:	Equal to present minimum criteria `[6]`
Underclearances appraisal:	Better than present minimum criteria `[7]`
Roadway alignment appraisal:	Equal to present minimum criteria `[6]`
Scour condition:	Bridge not over waterway. `[N]`
Sufficiency rating:	91.3
Recommended work:	Bridge deck replacement with only incidental widening. `[37]`

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
March 2017	Fair	Fair	Good	Satisfactory	6791	91.3
September 2014	Good	Good	Good	Good	6791	92.3
October 2012	Good	Good	Good	Good	6791	92.3
November 2010	Good	Good	Good	Good	6791	92.3
February 2010	Good	Good	Good	Good	6791	92.3
February 2008	Good	Good	Good	Good	7642	92.2
February 2006	Fair	Satisfactory	Good	Good	7642	92.2
September 2004	Fair	Satisfactory	Good	Good	4250	92.6
March 2004	Fair	Satisfactory	Fair	Fair	4250	81.5
March 2002	Fair	Satisfactory	Fair	Fair	4250	81.5
September 2000	Fair	Satisfactory	Fair	Fair	4250	81.5
September 1998	Fair	Good	Fair	Fair	4250	86.5
November 1996	Fair	Satisfactory	Satisfactory	Satisfactory	4250	92.6
September 1996	Fair	Satisfactory	Satisfactory	Satisfactory	4250	92.6
July 1994	Fair	Fair	Satisfactory	Satisfactory	5100	91.6
June 1992	Poor	Good	Poor	Satisfactory	5100	65.4
May 1990	Fair	Satisfactory	Very Good	Satisfactory	5100	92.6

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.	1,719	1,665	54	0	0
Steel Protective Coating	sq. ft.	13,895	13,617	278	0	0
Deck
Reinforced Concrete Deck	sq. ft.	8,404	7,941	191	272	0
Wearing Surfaces	sq. ft.	7,449	7,375	0	74	0
Substructure
Reinforced Concrete Column	each	10	6	2	2	0
Reinforced Concrete Pier Wall	linear ft.	122	97	5	20	0
Reinforced Concrete Abutment	linear ft.	236	236	0	0	0
Reinforced Concrete Pier Cap	linear ft.	122	95	27	0	0
Joints
Strip Seal Joint	linear ft.	112	104	0	8	0
Pourable Joint	linear ft.	108	0	0	108	0
Bearings
Movable Bearing	each	27	0	27	0	0
Fixed Bearing	each	27	0	27	0	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	386	39	347	0	0