Structure 6454 · Socorro County, NM

I-25 Nbl over Us-380

Carries I-25 Nbl over Us-380, Junction I-25/US-380.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT134 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

134 ft end to end, longest span 51 ft. Lengths and the semi-truck 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.

Built196462 years old
Length133.9 ft40.8 m
Daily traffic6,530counted 2023
Last inspectedJuly 2024every 24 months

Location

StateNew Mexico
CountySocorro
LocationJunction I-25/US-380
CarriesI-25 Nbl
CrossesUs-380
Coordinates33.91777, -106.87937

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length133.9 ft (40.8 m)
Max Span50.9 ft (15.5 m)
Deck Width41.0 ft (12.5 m)
Deck Area510 sq m
Main Spans3
Year Built1964

Traffic

Avg Daily Traffic6,530 (2023)
Truck Traffic45%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000006454

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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