WYO 270 over Unnamed Draw


+42.75224, -104.61748
42°45'08" N, 104°37'03" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:WYO 270 over Unnamed Draw
Structure number:JUH
Location:Manville South
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:11.2 ft. [3.4 m]
Total length:24.9 ft. [7.6 m]
Owner:State Highway Agency [01]
Year built:1956
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:2
Main spans material:Steel [3]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: April 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:362 [as of 2016]
Truck traffic:36% of total traffic
Structural 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 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]
Culvert condition:Shrinkage cracks, light scaling and insignificant spalling which does not expose reinforcing steel. Insignificant damage caused by drift with no misalignment and not requiring corrective action. Some minor scouring has occured near curtain walls, wingwalls or pipes. Metal culverts have a smooth symmetrical curvature with superficial corrosion and no pitting. [7]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:98.5

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
April 2017Good7 out of 1036298.5
April 2015Good7 out of 1038898.4
March 2013Good7 out of 1029498.7
February 2011Good7 out of 1025693.1
March 2009Good7 out of 1033092.5
January 2007Good7 out of 1029092.8
February 2005Good7 out of 1027093.0
February 2003Good7 out of 1028092.9
March 2001Good7 out of 1026093.1
January 1999Good7 out of 1023093.3
January 1997Good7 out of 1022093.4
February 1995Good7 out of 1022093.4
February 1993Good8 out of 1023093.3