300TH ST over SMALL


+42.10278, -91.59444
42°06'10" N, 91°35'40" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:300TH ST over SMALL
Structure number:000000000102171
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:23.0 ft. [7.0 m]
Total length:24.0 ft. [7.3 m]
Roadway width between curbs:20.3 ft. [6.2 m]
Deck width edge-to-edge:20.7 ft. [6.3 m]
Skew angle:30°
Owner:County Highway Agency [02]
Year built:1976
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:Gravel [8]

Latest Available Inspection: May 2016

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:70 [as of 2010]
Deck condition:Fair [5 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Serious [3 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
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 protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Operating rating:23.1 tons [21.0 metric tons]
Inventory rating:18.3 tons [16.6 metric tons]
Sufficiency rating:33.9
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
May 201633.9PoorFairFairSeriousSD70
May 201445.5PoorFairFairPoorSD70
May 201257.9PoorFairFairPoorSD70
May 201056.7PoorFairFairPoorSD70
April 200856.7PoorFairFairPoorSD70
March 200670.7FairFairFairFair-70
April 200470.7FairFairFairFair-70
October 200170.7FairFairFairFair-70
December 199970.7FairFairFairFair-70
June 199870.5FairFairFairFair-70
May 199677.7FairFairSatisfactoryFair-70
April 199489.7FairSatisfactoryGoodSatisfactory-80
June 199290.7FairSatisfactoryGoodSatisfactory-80
June 199090.7FairSatisfactoryGoodSatisfactory-80