+35.52407, -108.75842
35°31'27" N, 108°45'30" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US-491 over NM118/BNSF RR/RIO PUERCO
Structure number:000000000007384
Location:JCT US-602/NM-118/GALLUP
Purpose:Carries highway over highway, waterway, and railroad
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:159.1 ft. [48.5 m]
Total length:955.1 ft. [291.1 m]
Roadway width between curbs:72.8 ft. [22.2 m]
Deck width edge-to-edge:75.1 ft. [22.9 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Skew angle:24°
Owner:State Highway Agency [01]
Year built:1974
Year reconstructed:2007
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:9
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]

Latest Available Inspection: February 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:12,927 [as of 2017]
Truck traffic:8% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances 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 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 foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:90.1
Recommended work:Bridge deck replacement with only incidental widening. [37]
Estimated cost of work:$2,720,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
February 2018GoodGoodGoodGood1292790.1
February 2016GoodGoodGoodGood1864386.6
February 2014GoodGoodGoodGood1864386.6
February 2012GoodGoodGoodGood1654187.9
February 2010GoodGoodGoodGood2259985.0
February 2008GoodGoodGoodGood1295789.9
April 2006PoorPoorSatisfactoryFair1333168.2
April 2004PoorPoorSatisfactoryFair1376367.9
April 2002PoorPoorGoodSatisfactory1223781.6
April 2000FairFairGoodSatisfactory1218387.3
April 1998FairFairGoodSatisfactory1296386.8
March 1996FairFairGoodSatisfactory2892882.0
February 1994FairFairSatisfactorySatisfactory2620182.0
April 1992FairFairSatisfactorySatisfactory2533183.0
June 1991FairFairGoodSatisfactory909691.5

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Steel Girder/Beamlinear ft.7,6387,638000
Steel Protective Coatingsq. ft.92,92992,929000
Reinforced Concrete Decksq. ft.105,050105,050000
Wearing Surfacessq. ft.105,050105,050000
Steel Pin or Pin & Hangar Assemblyeach1616000
Steel Protective Coatingsq. ft.3232000
Reinforced Concrete Columneach2828000
Reinforced Concrete Pier Walllinear ft.5247500
Reinforced Concrete Abutmentlinear ft.157157000
Reinforced Concrete Pier Caplinear ft.6135981050
Strip Seal Jointlinear ft.399399000
Elastomeric Bearingeach8079010
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,9621,962000