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NM-456 over UNNAMED WATERWAY

Map

Coordinates:
+36.97306, -103.27932
36°58'23" N, 103°16'46" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NM-456 over UNNAMED WATERWAY
Structure number:000000000001102
Location:11.5 MI E OF JCT NM-370
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:30.8 ft. [9.4 m]
Total length:32.2 ft. [9.8 m]
Roadway width between curbs:31.5 ft. [9.6 m]
Deck width edge-to-edge:33.1 ft. [10.1 m]
Owner:State Highway Agency [01]
Year built:1966
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Design load:M 13.5 / H 15 [2]
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: April 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:35 [as of 2016]
Truck traffic:23% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry 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 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]
Scour condition:Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:87.2

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
April 2017FairSatisfactoryFairSatisfactory3587.2
April 2015FairSatisfactoryFairSatisfactory3187.3
April 2013FairGoodFairSatisfactory3287.3
April 2011FairGoodFairSatisfactory3287.3
April 2009FairGoodFairSatisfactory1687.3
April 2007FairGoodFairSatisfactory1687.3
April 2005FairGoodFairSatisfactory1687.3
April 2003FairGoodFairGood1687.3
July 2001FairGoodFairGood1687.3
July 1999FairGoodFairGood8087.0
July 1997FairGoodSatisfactoryGood7799.1
July 1995FairGoodSatisfactoryGood7299.1
August 1993FairSatisfactorySatisfactoryGood6799.1
August 1991FairSatisfactoryGoodGood3999.2

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Timber Girder/Beamlinear ft.7056494970
Substructure
Timber Columneach2216600
Timber Abutmentlinear ft.1411311000
Timber Pier Caplinear ft.82612100
Deck
Timber Decksq. ft.1,0551,055000
Wearing Surfacessq. ft.1,0551,055000
Bridge Rail
Other Material Bridge Raillinear ft.66333300