I-75 BS (PORTAGE) over POWER CANAL

Map

Coordinates:
+46.49609, -84.33323
46°29'46" N, 84°19'60" W

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

Name:	I-75 BS (PORTAGE) over POWER CANAL
Structure number:	000000000001571
Old structure number:	17117032000B030 `(from 1992 edition)`
Location:	IN SAULT STE MARIE
Purpose:	Carries highway over waterway
Route classification:	Other Principal Arterial (Urban) `[14]`
Length of largest span:	264.8 ft. `[80.7 m]`
Total length:	264.8 ft. `[80.7 m]`
Roadway width between curbs:	44.9 ft. `[13.7 m]`
Deck width edge-to-edge:	61.4 ft. `[18.7 m]`
Vertical clearance above deck:	17.4 ft. `[5.3 m]`
Owner:	State Highway Agency `[01]`
Year built:	1970
Year reconstructed:	1987
Historic significance:	Bridge is not eligible for the National Register of Historic Places `[5]`
Design load:	MS 18 / HS 20 `[5]`
Main span material:	Steel `[3]`
Main span design:	Arch - Thru `[12]`
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:	3,894 `[as of 2016]`
Truck traffic:	6% of total traffic
Deck condition:	Satisfactory `[6 out of 9]`
Superstructure condition:	Good `[7 out of 9]`
Substructure condition:	Very Good `[8 out of 9]`
Structural appraisal:	Better than present minimum criteria `[7]`
Deck geometry appraisal:	Superior to present desirable criteria `[9]`
Water adequacy appraisal:	Superior to present desirable criteria `[9]`
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]`
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. `[8]`
Sufficiency rating:	88.6

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
June 2018	Fair	Satisfactory	Good	Very Good	3894	88.6
June 2016	Good	Good	Good	Very Good	4500	88.6
June 2014	Good	Good	Good	Very Good	4500	88.6
June 2012	Good	Good	Good	Very Good	4500	88.6
June 2010	Good	Good	Good	Very Good	4500	88.6
May 2008	Good	Good	Good	Very Good	4500	88.6
May 2006	Good	Good	Good	Very Good	4500	88.6
May 2004	Good	Good	Good	Very Good	4500	88.6
June 2002	Good	Good	Good	Very Good	4500	88.6
June 2000	Good	Good	Good	Very Good	4500	89.6
December 1998	Good	Good	Good	Very Good	4500	89.6
August 1996	Good	Good	Good	Very Good	4500	89.6
October 1994	Good	Good	Good	Very Good	14000	74.6
June 1993	Good	Very Good	Good	Very Good	14000	74.6
July 1992	Good	Good	Good	Very Good	14000	74.6
October 1991	Good	Very Good	Good	Very Good	14000	74.6