I-475 over LEITH STREET

Map

Coordinates:
+43.04289, -83.67632
43°02'34" N, 83°40'35" W

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

Name:	I-475 over LEITH STREET
Structure number:	000000000002674
Old structure number:	25125132000S240 `(from 1992 edition)`
Location:	IN CITY OF FLINT
Purpose:	Carries highway over highway
Route classification:	Principal Arterial - Interstate (Urban) `[11]`
Length of largest span:	79.7 ft. `[24.3 m]`
Total length:	157.8 ft. `[48.1 m]`
Roadway width between curbs:	122.1 ft. `[37.2 m]`
Deck width edge-to-edge:	123.7 ft. `[37.7 m]`
Vertical clearance below bridge:	13.1 ft. `[4.0 m]`
Skew angle:	12°
Owner:	State Highway Agency `[01]`
Year built:	1977
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:	Latex Concrete or similar additive `[3]`

Good/Fair/Poor Condition:	Fair
Status:	Open, no restriction `[A]`
Average daily traffic:	56,000 `[as of 2007]`
Truck traffic:	3% of total traffic
Deck condition:	Satisfactory `[6 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:	Superior to present desirable criteria `[9]`
Underclearances appraisal:	Equal to present minimum criteria `[6]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Scour condition:	Bridge not over waterway. `[N]`
Sufficiency rating:	92.8
Recommended work:	Bridge deck replacement with only incidental widening. `[37]`
Estimated cost of work:	$151,000

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
April 2016	Fair	Satisfactory	Good	Satisfactory	56000	92.8
April 2014	Fair	Satisfactory	Good	Satisfactory	56000	92.8
April 2012	Good	Good	Good	Good	56000	92.8
April 2010	Good	Good	Good	Good	56000	92.8
April 2008	Good	Good	Good	Good	56000	92.8
April 2006	Good	Good	Good	Good	61098	92.3
April 2004	Good	Good	Good	Good	57000	92.7
April 2002	Good	Good	Good	Good	57000	92.7
October 2001	Good	Good	Good	Good	57000	92.7
September 2000	Fair	Satisfactory	Good	Good	57000	92.7
September 1998	Fair	Satisfactory	Satisfactory	Good	57000	92.7
July 1996	Fair	Good	Satisfactory	Good	57000	92.7
August 1994	Fair	Good	Satisfactory	Good	22700	96.3
June 1992	Fair	Good	Satisfactory	Very Good	22700	96.3
August 1990	Good	Good	Very Good	Very Good	22700	96.3

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.

Element	Units	Quantity	1-Good	2-Fair	3-Poor	4-Serious
Superstructure
Steel Girder/Beam	linear ft.	8,285	8,068	0	217	0
Steel Protective Coating	sq. ft.	212,253	210,133	2,120	0	0
Deck
Reinforced Concrete Deck	sq. ft.	210,112	206,678	3,369	65	0
Superstructure
Steel Pin or Pin & Hangar Assembly	each	32	32	0	0	0
Substructure
Reinforced Concrete Column	each	20	20	0	0	0
Reinforced Concrete Abutment	linear ft.	817	686	115	16	0
Reinforced Concrete Pier Cap	linear ft.	817	817	0	0	0
Joints
Strip Seal Joint	linear ft.	833	0	833	0	0
Pourable Joint	linear ft.	1,667	0	1,667	0	0
Bearings
Movable Bearing	each	32	28	4	0	0
Fixed Bearing	each	32	28	0	4	0
Bridge Rail
Reinforced Concrete Bridge Rail	linear ft.	1,551	928	548	62	13