NM-346 over RIO GRANDE


+34.54508, -106.76378
34°32'42" N, 106°45'50" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NM-346 over RIO GRANDE
Structure number:000000000007339
Location:0.4 M W Jct NM304/NM346
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:55.1 ft. [16.8 m]
Total length:559.1 ft. [170.4 m]
Roadway width between curbs:32.5 ft. [9.9 m]
Deck width edge-to-edge:35.1 ft. [10.7 m]
Owner:State Highway Agency [01]
Year built:1971
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:10
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: September 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:2,204 [as of 2016]
Truck traffic:13% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Superior to present desirable criteria [9]
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 foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:84.1

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2016FairGoodGoodFair220484.1
September 2014FairGoodGoodFair218684.1
September 2012GoodGoodGoodGood195996.8
September 2010GoodGoodGoodGood220395.5
March 2008FairSatisfactoryVery GoodFair224182.0
March 2006FairGoodVery GoodFair233481.9
March 2004FairGoodVery GoodFair118884.4
March 2002FairGoodVery GoodFair186483.6
March 2000FairGoodVery GoodFair187983.5
March 1998GoodGoodGoodGood193695.8
September 1995FairGoodFairSatisfactory195984.4
August 1993FairGoodSatisfactorySatisfactory131095.5
August 1991FairGoodSatisfactoryGood89599.0

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.3,3303,330000
Reinforced Concrete Decksq. ft.19,56519,565000
Steel Columneach9000900
Steel Protective Coatingsq. ft.3,7703,01607540
Reinforced Concrete Abutmentlinear ft.6868000
Reinforced Concrete Pier Caplinear ft.306306000
Pourable Jointlinear ft.385385000
Elastomeric Bearingeach120011820
Steel Protective Coatingsq. ft.3,7703,01607540
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,1181,118000
Steel Protective Coatingsq. ft.3,7703,01607540