320 ST over MID BR RUSH R (CD 54)


+44.48550, -94.18076
44°29'08" N, 94°10'51" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:320 ST over MID BR RUSH R (CD 54)
Structure number:72529
Location:1.5 MI E OF JCT TH 22
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:32.2 ft. [9.8 m]
Total length:96.1 ft. [29.3 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:38.1 ft. [11.6 m]
Owner:County Highway Agency [02]
Year built:1987
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Wood or timber [7]
Main spans design:Slab [01]
Deck type:Wood or Timber [8]
Wearing surface:Bituminous [6]

Latest Available Inspection: July 2018

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:820 [as of 2014]
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 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:Better than present minimum criteria [7]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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:81.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2018FairSatisfactorySatisfactorySatisfactory82081.9
September 2016FairSatisfactorySatisfactorySatisfactory67781.9
August 2015GoodGoodGoodGood67781.9
November 2014GoodGoodGoodGood67781.9
October 2013GoodGoodGoodGood67781.9
November 2012GoodGoodGoodGood67792.9
November 2011GoodGoodGoodGood67792.9
October 2010GoodGoodGoodGood67792.9
December 2009GoodGoodGoodGood67792.9
October 2008GoodGoodGoodGood98093.9
November 2007GoodGoodGoodGood98095.9
October 2006GoodGoodGoodGood98095.9
December 2005GoodGoodGoodGood98095.9
November 2004GoodGoodGoodGood98095.9
November 2003GoodGoodGoodGood45096.0
November 2002GoodGoodGoodGood45096.0
December 2001GoodGoodGoodGood45099.9
November 2000GoodVery GoodVery GoodVery Good45093.8
November 1999GoodVery GoodVery GoodVery Good45093.8
November 1998GoodVery GoodVery GoodVery Good45093.8
November 1996GoodVery GoodVery GoodVery Good45086.7
December 1995GoodGoodGoodGood45093.9
December 1994GoodGoodGoodGood35596.3
January 1994GoodGoodGoodGood35596.3
November 1992GoodVery GoodVery GoodVery Good35596.3
January 1992GoodVery GoodExcellentExcellent26096.3

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Timber Floor Beamlinear ft.114011400
Timber Abutmentlinear ft.108010800
Steel Pileeach1201200
Steel Protective Coatingsq. ft.7200640800
Timber Pileeach1401400
Timber Pier Caplinear ft.8008000
Bridge Rail
Timber Bridge Raillinear ft.192019200
Timber Slabsq. ft.3,64802,4321,2160
Wearing Surfacessq. ft.3,45603,45600