Structure 9981 · Mora County, NM

Nm-434 over Coyote Creek

Carries Nm-434 over Coyote Creek, 20.5 Mi N Of Nm-518/mora.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT84 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

84 ft end to end. 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.

Built20233 years old
Length84.0 ft25.6 m
Daily traffic1,186counted 2021
Last inspectedNovember 2023every 24 months

Location

StateNew Mexico
CountyMora
Location20.5 Mi N Of Nm-518/mora
CarriesNm-434
CrossesCoyote Creek
Coordinates36.22605, -105.23551

Physical Characteristics

MaterialConcrete Continuous
DesignStringer/Multi-beam
Total Length84.0 ft (25.6 m)
Max Span84.0 ft (25.6 m)
Deck Width32.5 ft (9.9 m)
Deck Area253.4 sq m
Main Spans1
Year Built2023

Traffic

Avg Daily Traffic1,186 (2021)
Truck Traffic16%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000009981

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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