+45.32517, -84.24798
45°19'31" N, 84°14'53" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:638 HWY over BLACK RIVER
Structure number:000000000008982
Old structure number:71301A00007B010 (from 1992 edition)
Location:2.2 MI S OF ONAWAY
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:82.0 ft. [25.0 m]
Total length:86.0 ft. [26.2 m]
Roadway width between curbs:29.9 ft. [9.1 m]
Deck width edge-to-edge:32.8 ft. [10.0 m]
Owner:County Highway Agency [02]
Year built:2012
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Main span material:Prestressed concrete [5]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: September 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:300 [as of 2005]
Truck traffic:10% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:93.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017GoodVery GoodVery GoodVery Good30093.9
September 2015GoodVery GoodVery GoodVery Good30093.9
September 2013GoodVery GoodVery GoodVery Good30087.9
August 2012GoodExcellentExcellentExcellent30087.9
May 2011PoorCriticalFairSatisfactory30029.5
May 2009PoorCriticalFairSatisfactory30029.5
May 2007PoorPoorFairSatisfactory30048.8
April 2005PoorSeriousFairSatisfactory30046.7
April 2003FairGoodSatisfactorySatisfactory27590.9
April 2001FairGoodSatisfactorySatisfactory27595.9
January 1999FairGoodGoodSatisfactory27595.9
October 1996FairGoodGoodSatisfactory27595.9
July 1994FairGoodGoodSatisfactory27595.9
May 1992FairGoodGoodSatisfactory27595.9
November 1989FairVery GoodVery GoodSatisfactory27594.0