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IRR US 70 over Cottonwood Canyon

Map

Coordinates:
+33.24149, -110.25969
33°14'29" N, 110°15'35" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:IRR US 70 over Cottonwood Canyon
Structure number:04286
Location:29.4 mi E Jct SR 77
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:12.1 ft. [3.7 m]
Total length:38.1 ft. [11.6 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:3
Main spans material:Concrete continuous [2]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: April 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:3,383 [as of 2013]
Truck traffic:10% of total traffic
Structural 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 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:Deterioration or initial disintegration, minor chloride contamination, cracking with some leaching, or spalls on concrete or masonry walls and slabs. Local minor scouring at curtain walls, wingwalls or pipes. Metal culverts have a smooth curvature, non-symmetrical shape, significant corrosion or moderate pitting. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:80.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$1,000

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
April 2015Fair6 out of 10338380.0
April 2011Fair6 out of 10300080.0
June 2007Fair6 out of 10340080.0
April 2003Good7 out of 10220880.0
December 1998Good7 out of 10205680.0
April 1994Good7 out of 10150081.9
November 1991Good8 out of 10300077.0