Structure 2368 · Dona Ana County, NM

Nm-158 over Leasburg Canal

Carries Nm-158 over Leasburg Canal, 0.5 Mi NE Of Jct Nm-185.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT45 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

45 ft end to end, longest span 20 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built194581 years old
Length44.9 ft13.7 m
Daily traffic312counted 2023
Last inspectedOctober 2024every 24 months

Location

StateNew Mexico
CountyDona Ana
Location0.5 Mi NE Of Jct Nm-185
CarriesNm-158
CrossesLeasburg Canal
Coordinates32.42400, -106.85862

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length44.9 ft (13.7 m)
Max Span20.0 ft (6.1 m)
Deck Width19.0 ft (5.8 m)
Deck Area79.5 sq m
Main Spans2
Year Built1945

Traffic

Avg Daily Traffic312 (2023)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number000000000002368

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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