WYO 171 over Spring Gulch


+43.91761, -108.60502
43°55'03" N, 108°36'18" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:WYO 171 over Spring Gulch
Structure number:CPW
Location:Jct Wyo 120 - Grass Creek
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:9.8 ft. [3.0 m]
Total length:31.5 ft. [9.6 m]
Owner:State Highway Agency [01]
Year built:1950
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: April 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:58 [as of 2017]
Truck traffic:17% 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:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
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:94.6

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
April 2018Good7 out of 105894.6
May 2016Good8 out of 104994.6
April 2014Good8 out of 105272.5
May 2012Good8 out of 105272.3
June 2010Good8 out of 106072.2
June 2008Good8 out of 106072.2
June 2006Good8 out of 104071.4
June 2004Good8 out of 107071.1
April 2002Good8 out of 104071.4
May 2000Good8 out of 1013070.5
May 1998Good8 out of 1013070.5
May 1996Good8 out of 1017070.1
June 1994Good8 out of 1017070.1
February 1992Good7 out of 1016070.2
November 1989Good7 out of 1016070.2