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7 MILE ROAD over BIG SALT RIVER

Map

Coordinates:
+43.67398, -84.38921
43°40'26" N, 84°23'21" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:7 MILE ROAD over BIG SALT RIVER
Structure number:000000000006954
Old structure number:56200060000B020 (from 1992 edition)
Location:0.1 MI S OF SAGINAW ROAD
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:89.9 ft. [27.4 m]
Total length:91.9 ft. [28.0 m]
Roadway width between curbs:22.0 ft. [6.7 m]
Deck width edge-to-edge:23.3 ft. [7.1 m]
Skew angle:20°
Owner:County Highway Agency [02]
Year built:1927
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Main span material:Concrete [1]
Main span design:Girder and floorbeam system [03]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2017

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:4,490 [as of 1999]
Truck traffic:10% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Meets minimum tolerable limits to be left in place as is [4]
Channel protection:Bank and embankment protection is severely undermined. River control devices have severe damage. Large deposits of debris are in the channel. [4]
Scour condition:Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:60.3
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$529,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017FairFairFairSatisfactory449060.3
September 2015FairFairFairSatisfactory449060.3
September 2013FairFairFairSatisfactory449060.3
September 2011FairFairFairSatisfactory449060.3
September 2009FairFairFairSatisfactory449060.3
September 2007FairFairFairSatisfactory449058.3
August 2005FairFairFairGood449062.9
August 2003FairFairFairGood449062.3
October 2001FairFairFairGood449064.3
July 1999PoorSatisfactorySeriousSatisfactory449032.9
July 1997FairSatisfactoryFairSatisfactory333665.8
August 1995FairSatisfactoryFairSatisfactory333661.7
August 1993FairFairFairSatisfactory333659.7
June 1991FairFairFairSatisfactory333648.8