Structure 5666 · Cibola County, NM

Nm-122 over Rio San Jose

Carries Nm-122 over Rio San Jose, E Of Horizon Ave/milan W.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT88 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 88 ft across with 8 openings. 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, so those are drawn as typical for a culvert.

Built1952rebuilt 1955
Length87.9 ft26.8 m
Daily traffic6,839counted 2023
Last inspectedMarch 2024every 48 months

Location

StateNew Mexico
CountyCibola
LocationE Of Horizon Ave/milan W
CarriesNm-122
CrossesRio San Jose
Coordinates35.18269, -107.89668

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length87.9 ft (26.8 m)
Max Span9.8 ft (3 m)
Deck Width113.2 ft (34.5 m)
Deck Area924.6 sq m
Main Spans8
Year Built1952 (reconstructed 1955)

Traffic

Avg Daily Traffic6,839 (2023)
Truck Traffic13%
Lanes On Bridge6

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000005666

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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