+44.94184, -85.28174
44°56'31" N, 85°16'54" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:ROUTE 593 over CLAM LAKE
Structure number:000000000000365
Old structure number:05200027000B010 (from 1992 edition)
Location:0.5 MI S OF CLAM RIVER
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:49.9 ft. [15.2 m]
Total length:197.8 ft. [60.3 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:33.8 ft. [10.3 m]
Skew angle:15°
Owner:County Highway Agency [02]
Year built:1958
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:5
Main spans material:Prestressed concrete [5]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:1,400 [as of 1997]
Truck traffic:2% 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]
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 is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:77.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2018FairSatisfactorySatisfactorySatisfactory140077.4
September 2016FairSatisfactorySatisfactorySatisfactory140077.4
September 2014FairSatisfactorySatisfactorySatisfactory140076.3
September 2012FairSatisfactorySatisfactorySatisfactory140075.3
October 2010FairSatisfactorySatisfactorySatisfactory140075.3
July 2008GoodGoodGoodGood140075.3
May 2006GoodGoodGoodGood140075.4
July 2004GoodGoodGoodGood140075.3
July 2002GoodGoodGoodGood140075.3
June 2000GoodGoodGoodVery Good140075.3
June 1998GoodGoodGoodVery Good140079.3
June 1996GoodGoodGoodVery Good140075.3
March 1994GoodGoodGoodVery Good140075.3
June 1992GoodGoodGoodVery Good140075.3
June 1990GoodGoodGoodVery Good140075.3