US Bridges

NM-434 over Coyote Creek

Good

Mora County, New Mexico · 20.5 MI N of NM-518/MORA · Structure no. 000000000009981

Built
2023
2 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
84 ft
1 main span
Daily traffic
1,186
2021 count
Owner
State
State Highway Agency

About this bridge

NM-434 over Coyote Creek is a concrete continuous stringer/multi-beam or girder carrying NM-434 over Coyote Creek in Mora County, New Mexico. It was built in 2023, so it is 2 years old, younger than the New Mexico average of 51.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,186 vehicles a day, roughly 16% of them trucks, projected to reach 1,612 by 2041. The structure is 84 ft (25.6 m) long and 32 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesNM-434
CrossesCoyote Creek
Location20.5 MI N of NM-518/MORA
RouteState Highway 434
CountyMora County
StateNew Mexico
Coordinates36.22605, -105.23551
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.1 US tons
Inventory rating48.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length84 ft (25.6 m)
Longest span84 ft (25.6 m)
Deck width32 ft (9.9 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,186 (2021)
Projected traffic1,612 by 2041
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$300,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-434 over Coyote Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is NM-434 over Coyote Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does NM-434 over Coyote Creek carry?

About 1,186 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is NM-434 over Coyote Creek?

The structure is 84 ft (25.6 m) long with a longest span of 84 ft (25.6 m) and a deck 32 ft wide.

Who owns NM-434 over Coyote Creek?

It is owned by the State Highway Agency.