WYO 450 over Black Thunder Creek


+43.66983, -104.90197
43°40'11" N, 104°54'07" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:WYO 450 over Black Thunder Creek
Structure number:DFX
Location:Newcastle - Jct Wyo 59
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:54.1 ft. [16.5 m]
Total length:138.1 ft. [42.1 m]
Roadway width between curbs:32.2 ft. [9.8 m]
Deck width edge-to-edge:34.5 ft. [10.5 m]
Skew angle:10°
Owner:State Highway Agency [01]
Year built:1981
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: July 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:614 [as of 2017]
Truck traffic:12% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:93.5

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2018GoodGoodGoodGood61493.5
February 2017FairFairSatisfactoryGood58392.7
February 2015FairFairSatisfactoryGood54792.9
January 2013PoorPoorSatisfactoryGood56990.7
January 2011PoorPoorSatisfactoryGood57787.5
February 2009PoorPoorSatisfactoryGood55087.8
February 2007PoorPoorSatisfactoryGood70086.6
February 2005PoorPoorSatisfactoryGood51088.1
March 2003PoorPoorSatisfactoryGood48088.3
February 2001PoorPoorSatisfactoryGood40088.9
February 1999FairSatisfactoryGoodGood37092.2
February 1997GoodGoodGoodGood36092.3
March 1995FairSatisfactoryGoodGood35092.4
March 1993Good-Very GoodGood34092.5
January 1992Good-Very GoodGood30092.8