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US 491 ML over CAHONE CREEK

Map

Coordinates:
+37.64893, -108.80829
37°38'56" N, 108°48'30" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 491 ML over CAHONE CREEK
Structure number:N-01-H
Location:24.6 MI NW OF JCT US 160
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:14.1 ft. [4.3 m]
Total length:44.0 ft. [13.4 m]
Deck width edge-to-edge:106.6 ft. [32.5 m]
Owner:State Highway Agency [01]
Year built:1937
Year reconstructed:1960
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:Concrete [1]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: February 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:2,500 [as of 2011]
Truck traffic:23% of total traffic
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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]
Culvert condition:Moderate to major deterioration or disintegration, extensive cracking and leaching or spalls on concrete or masonry walls and slabs. Minor settlement or misalignment. Noticeable scouring or erosion at curtain walls, wingwalls or pipes. Metal culverts have significant distortion and deflection in one section, significant corrosion or deep pitting. [5]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:85.3

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
February 2017Fair5 out of 10250085.3
March 2015Fair5 out of 10250085.3
February 2013Fair5 out of 10250085.3
February 2011Fair5 out of 10340085.1
March 2009Fair5 out of 10340085.1
February 2007Fair5 out of 10350085.1
March 2005Fair5 out of 10334885.1
March 2003Fair5 out of 10323185.1
February 2001Fair5 out of 10314885.2
March 1999Fair5 out of 10314885.2
February 1997Fair5 out of 10240085.4
March 1995Fair5 out of 10240085.4
April 1993Fair6 out of 10200096.6
March 1992Fair6 out of 10200094.6
January 1990Fair6 out of 10185094.6

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Culvert
Reinforced Concrete Culvertlinear ft.32121690150