Structure M161 · Cibola County, NM

IRR BIA RTE 27 over San Jose River

Carries IRR BIA RTE 27 over San Jose River, East Edge Of Mccartys.

Overall conditionGood

Set by its lowest-rated component: Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall3/9 · Serious
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT52 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

52 ft end to end, longest span 25 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 slab bridge.

Built201016 years old
Length52.5 ft16 m
Daily traffic788counted 2023
Last inspectedApril 2023every 24 months

Location

StateNew Mexico
CountyCibola
LocationEast Edge Of Mccartys
CarriesIRR BIA RTE 27
CrossesSan Jose River
Coordinates35.06443, -107.66774

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length52.5 ft (16 m)
Max Span24.9 ft (7.6 m)
Deck Width47.6 ft (14.5 m)
Deck Area232 sq m
Main Spans2
Year Built2010

Traffic

Avg Daily Traffic788 (2023)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerBureau of Indian Affairs
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number00000000000M161

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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