+42.36389, -91.06944
42°21'50" N, 91°04'10" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:FM over ROCK CR
Structure number:000000000103710
Purpose:Carries highway over waterway
Route classification:Minor Collector (Rural) [08]
Length of largest span:24.9 ft. [7.6 m]
Total length:26.9 ft. [8.2 m]
Roadway width between curbs:21.0 ft. [6.4 m]
Deck width edge-to-edge:22.3 ft. [6.8 m]
Owner:County Highway Agency [02]
Year built:1956
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Wood or Timber [7]

Latest Available Inspection: June 2015

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:60 [as of 2014]
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:23.1 tons [21.0 metric tons]
Inventory rating:17.9 tons [16.3 metric tons]
Sufficiency rating:44.9
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201544.9PoorFairFairPoorSD60
May 201347.0PoorFairFairPoorSD45
May 201163.0FairFairFairFair-45
May 200962.7FairFairFairFair-50
July 200749.3FairFairFairFair-50
June 200549.3FairFairFairFair-50
July 200350.3FairSatisfactoryFairFair-50
June 200150.3FairSatisfactoryFairFair-50
July 199950.3FairSatisfactorySatisfactoryFair-50
January 199750.3FairSatisfactorySatisfactoryFair-45
May 199550.3FairSatisfactorySatisfactoryFair-45
June 199384.5FairSatisfactorySatisfactorySatisfactory-50
May 199182.5FairSatisfactorySatisfactorySatisfactory-50