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JOHNSTONE ST. over POWER CANAL

Chippewa County, Michigan

Map

Coordinates:
+46.49333, -84.34091
46°29'36" N, 84°20'27" W

Facts

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

Name:	JOHNSTONE ST. over POWER CANAL
Structure number:	000000000001678
Old structure number:	174602800048B02 `(from 1992 edition)`
Location:	IN SAULT STE MARIE
Purpose:	Carries highway and pedestrian walkway over waterway
Route classification:	Collector (Urban) `[17]`
Length of largest span:	276.9 ft. `[84.4 m]`
Total length:	283.8 ft. `[86.5 m]`
Roadway width between curbs:	29.9 ft. `[9.1 m]`
Deck width edge-to-edge:	42.3 ft. `[12.9 m]`
Owner:	City or Municipal Highway Agency `[04]`
Year built:	1979
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:	Stringer/Multi-beam or girder `[02]`
Deck type:	Concrete Cast-in-Place `[1]`
Wearing surface:	Monolithic Concrete (concurrently placed with structural deck) `[1]`

Latest Available Inspection: June 2017

Good/Fair/Poor Condition:	Good
Status:	Open, no restriction `[A]`
Average daily traffic:	3,720 `[as of 1997]`
Truck traffic:	53% of total traffic
Deck condition:	Very Good `[8 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:	Meets minimum tolerable limits to be left in place as is `[4]`
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]`
Scour condition:	Bridge foundations determined to be stable for the assessed or calculated scour condition. `[8]`
Sufficiency rating:	80.6
Recommended work:	Bridge rehabilitation because of general structure deterioration or inadequate strength. `[35]`
Estimated cost of work:	$22,000

Previous Inspections

Date	Condition	Deck	Superstructure	Substructure	ADT	Suff. Rating
June 2017	Good	Very Good	Good	Very Good	3720	80.6
June 2015	Good	Excellent	Good	Very Good	3720	66.9
July 2014	Good	Excellent	Good	Very Good	3720	66.9
June 2013	Poor	Poor	Good	Very Good	3720	63.9
June 2011	Poor	Poor	Good	Very Good	3720	63.9
June 2009	Poor	Poor	Good	Very Good	3720	63.9
May 2007	Poor	Poor	Good	Very Good	3720	63.9
June 2005	Fair	Fair	Good	Very Good	3720	65.9
June 2003	Fair	Fair	Good	Very Good	3720	65.9
June 2001	Fair	Satisfactory	Good	Very Good	3720	66.8
June 1999	Fair	Satisfactory	Good	Very Good	3720	66.8
June 1997	Fair	Satisfactory	Good	Very Good	3720	66.8
June 1995	Fair	Satisfactory	Good	Very Good	1600	75.3
June 1993	Fair	Satisfactory	Good	Very Good	1600	75.3
October 1991	Fair	Satisfactory	Good	Very Good	1600	75.3

© Copyright 2012-20, James Baughn
Disclaimer: All data is taken from the National Bridge Inventory and has not been verified.
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