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NM-456 over IRRIGATION CANAL

Map

Coordinates:
+36.91287, -103.72745
36°54'46" N, 103°43'39" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NM-456 over IRRIGATION CANAL
Structure number:000000000006587
Location:23.5 MI NE JCT US-64/87
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:29.9 ft. [9.1 m]
Total length:32.2 ft. [9.8 m]
Roadway width between curbs:24.3 ft. [7.4 m]
Deck width edge-to-edge:25.3 ft. [7.7 m]
Skew angle:45°
Owner:State Highway Agency [01]
Year built:1965
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Main span material:Wood or timber [7]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Bituminous [6]

Latest Available Inspection: October 2018

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:62 [as of 2018]
Truck traffic:5% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present minimum criteria [6]
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]
Scour condition:Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:55.3
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$55,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2018PoorFairPoorPoor6255.3
April 2017PoorFairPoorPoor6955.2
October 2015PoorFairPoorPoor6855.2
April 2014PoorFairPoorPoor6855.2
October 2012PoorFairPoorPoor3955.5
April 2011PoorFairPoorPoor3955.5
October 2009PoorFairPoorPoor7755.2
April 2008PoorFairPoorPoor7755.2
October 2006PoorFairPoorFair8155.1
April 2005PoorFairPoorFair8355.1
April 2003PoorFairPoorFair8755.1
July 2001PoorFairPoorFair6255.3
July 1999PoorFairPoorFair8455.1
July 1997PoorFairPoorFair8055.1
July 1995PoorFairPoorFair7654.5
August 1993PoorFairPoorFair4554.8
August 1991PoorFairPoorFair7254.6

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Timber Girder/Beamlinear ft.4170387300
Substructure
Timber Columneach1901540
Timber Abutmentlinear ft.8208200
Timber Pier Caplinear ft.6206200
Deck
Timber Decksq. ft.807080700
Wearing Surfacessq. ft.807807000
Bridge Rail
Other Material Bridge Raillinear ft.6606600