330TH ST over STREAM


+41.61261, -91.27443
41°36'45" N, 91°16'28" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:330TH ST over STREAM
Structure number:000000000102360
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:70.9 ft. [21.6 m]
Total length:70.9 ft. [21.6 m]
Roadway width between curbs:17.1 ft. [5.2 m]
Deck width edge-to-edge:18.0 ft. [5.5 m]
Owner:County Highway Agency [02]
Year built:1930
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Main span material:Steel [3]
Main span design:Truss - Thru [10]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: May 2018

Good/Fair/Poor Condition:Poor
Status:Posted for other load-capacity restriction [R]
Average daily traffic:10 [as of 2018]
Deck condition:Poor [4 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Fair [5 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 corrrective action [3]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present minimum criteria [6]
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]
Sufficiency rating:45.4
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2018PoorPoorFairFair1045.4
May 2016PoorPoorFairFair1045.4
May 2014PoorPoorFairFair1045.4
May 2012FairFairFairSatisfactory1047.4
May 2010FairFairFairSatisfactory1034.9
April 2008FairFairFairSatisfactory1034.9
March 2006FairFairFairSatisfactory1035.1
April 2004FairFairFairSatisfactory1035.1
October 2001FairFairFairSatisfactory535.1
December 1999FairFairFairSatisfactory535.1
June 1998FairFairFairSatisfactory535.1
May 1996FairSatisfactoryFairGood536.1
April 1994FairGoodSatisfactoryGood560.8
June 1992FairGoodSatisfactoryGood560.8
June 1990FairGoodSatisfactoryGood560.8