County Road 59 over South Platte River


+40.42200, -103.42325
40°25'19" N, 103°25'24" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:County Road 59 over South Platte River
Structure number:WTN59-Q.25-A
Location:0.25 Mi. E. of Co. Rd. Q
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:58.4 ft. [17.8 m]
Total length:182.4 ft. [55.6 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:28.2 ft. [8.6 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:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Corrugated Steel [6]
Wearing surface:Bituminous [6]

Latest Available Inspection: October 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:56 [as of 2012]
Deck condition:Fair [5 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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 foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:95.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2017FairFairSatisfactorySatisfactory5695.4
December 2015FairFairSatisfactorySatisfactory5695.4
January 2014FairFairSatisfactorySatisfactory5695.4
January 2012FairFairGoodSatisfactory5695.4
January 2010FairFairGoodSatisfactory4496.4
December 2007FairFairGoodSatisfactory4497.4
November 2005GoodGoodGoodGood5898.4
November 2003GoodGoodGoodGood6394.9
May 2001FairGoodGoodFair6383.7
April 1999GoodGoodGoodGood6394.7
May 1997FairSatisfactoryGoodVery Good6394.7
December 1995FairFairGoodVery Good5693.8
May 1993GoodVery GoodVery GoodVery Good5699.0
April 1991GoodVery GoodVery GoodVery Good56100.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,09401,09310
Steel Protective Coatingsq. ft.1,0940001,094
Steel Columneach1201110
Steel Protective Coatingsq. ft.1200012
Reinforced Concrete Abutmentlinear ft.5757000
Reinforced Concrete Pier Caplinear ft.5757000
Corrugated or Orthotropic Decksq. ft.5,1594,3855162580
Wearing Surfacessq. ft.5,1595,1070520
Steel Protective Coatingsq. ft.5,1594,38500774
Compression Jointlinear ft.5700057
Elastomeric Bearingeach36241200
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.365365000
Steel Protective Coatingsq. ft.365365000