I-75, INT'L BRIDGE over ST MARY RIV/PORTAGE AV W

Map

Coordinates:
+46.50842, -84.36065
46°30'30" N, 84°21'38" W

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

Name:	I-75, INT'L BRIDGE over ST MARY RIV/PORTAGE AV W
Structure number:	000000000001582
Old structure number:	17117034000B010 `(from 1992 edition)`
Location:	IN SAULT STE MARIE
Purpose:	Carries highway over highway, waterway, and railroad
Route classification:	Principal Arterial - Interstate (Urban) `[11]`
Tolls:	Yes `[1]`
Length of largest span:	430.1 ft. `[131.1 m]`
Total length:	9280.6 ft. `[2828.6 m]`
Roadway width between curbs:	27.9 ft. `[8.5 m]`
Deck width edge-to-edge:	34.5 ft. `[10.5 m]`
Vertical clearance above deck:	17.1 ft. `[5.2 m]`
Vertical clearance below bridge:	121.4 ft. `[37.0 m]`
Owner:	State Toll Authority `[31]`
Year built:	1962
Historic significance:	Bridge is on the National Register of Historic Places `[1]`
Design load:	MS 18 / HS 20 `[5]`
Number of main spans:	8
Main spans material:	Steel continuous `[4]`
Main spans design:	Truss - Thru `[10]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Low slump Concrete `[4]`

Good/Fair/Poor Condition:	Fair
Status:	Posted for load `[P]`
Average daily traffic:	5,242 `[as of 2007]`
Truck traffic:	9% of total traffic
Deck condition:	Satisfactory `[6 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:	Meets minimum tolerable limits to be left in place as is `[4]`
Underclearances appraisal:	Somewhat better than minimum adequacy to tolerate being left in place as is `[5]`
Water adequacy appraisal:	Equal to present desirable criteria `[8]`
Roadway alignment appraisal:	Equal to present desirable criteria `[8]`
Channel protection:	Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. `[8]`
Pier/abutment protection:	Navigation protection not required `[1]`
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. `[8]`
Sufficiency rating:	54.7

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
August 2018	Fair	Satisfactory	Satisfactory	Satisfactory	5242	54.7
August 2017	Fair	Satisfactory	Good	Satisfactory	5242	54.7
August 2016	Fair	Satisfactory	Satisfactory	Satisfactory	5242	54.7
August 2015	Fair	Satisfactory	Satisfactory	Good	5242	51.0
August 2014	Fair	Satisfactory	Satisfactory	Good	5242	55.0
August 2013	Fair	Satisfactory	Satisfactory	Good	5242	55.0
August 2012	Fair	Satisfactory	Satisfactory	Good	5242	55.0
August 2011	Fair	Satisfactory	Good	Good	5242	55.0
August 2009	Fair	Satisfactory	Good	Good	5242	57.0
September 2007	Fair	Fair	Very Good	Good	5090	56.0
October 2006	Fair	Fair	Very Good	Good	5090	56.0
September 2004	Fair	Fair	Very Good	Good	18900	56.0
September 2002	Good	Excellent	Very Good	Good	18900	54.0
September 1993	Good	Good	Good	Good	8900	54.0
September 1992	Good	Good	Good	Good	9480	54.0
September 1990	Good	Good	Good	Good	9010	52.0

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.	12,667	10,997	997	671	2
Steel Protective Coating	sq. ft.	335,549	326,429	9,113	0	7
Steel Stringer	linear ft.	24,747	23,505	980	240	22
Steel Protective Coating	sq. ft.	157,922	150,051	7,486	340	45
Deck
Reinforced Concrete Deck	sq. ft.	227,170	227,170	0	0	0
Wearing Surfaces	sq. ft.	267,126	120,717	146,309	100	0
Superstructure
Steel Truss	linear ft.	4,738	3,061	1,667	10	0
Steel Protective Coating	sq. ft.	125,880	93,151	27,694	3,776	1,259
Steel Floor Beam	linear ft.	9,127	8,313	687	127	0
Steel Protective Coating	sq. ft.	118,147	113,747	4,400	0	0
Steel Gusset Plate	each	656	440	100	112	4
Steel Protective Coating	sq. ft.	59,670	36,576	20,851	1,943	300
Substructure
Reinforced Concrete Column	each	94	51	41	2	0
Reinforced Concrete Pier Wall	linear ft.	193	118	52	23	0
Reinforced Concrete Abutment	linear ft.	92	58	10	24	0
Reinforced Concrete Pile Cap/Footing	linear ft.	242	216	20	6	0
Reinforced Concrete Pier Cap	linear ft.	1,927	1,570	299	58	0
Joints
Strip Seal Joint	linear ft.	477	104	32	4	337
Pourable Joint	linear ft.	1,010	485	261	44	220
Compression Joint	linear ft.	35	35	0	0	0
Open Joint	linear ft.	140	125	15	0	0
Assembly without Seal Joint	linear ft.	907	413	494	0	0
Bearings
Movable Bearing	each	182	78	103	1	0
Steel Protective Coating	sq. ft.	1,898	1,632	266	0	0
Fixed Bearing	each	160	63	94	3	0
Steel Protective Coating	sq. ft.	1,620	1,352	260	8	0
Bridge Rail
Steel or Aluminum Bridge Rail	linear ft.	37,030	8,125	11,145	17,744	16
Steel Protective Coating	sq. ft.	175,247	19,797	114,216	41,234	0