US Bridges

NM-549 over Union Pacific R/R

Fair

Luna County, New Mexico · 23.9 MI E LOOP-22/DEMING · Structure no. 000000000009625

Built
2016
9 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
289 ft
3 main spans
Daily traffic
819
2023 count
Owner
State
State Highway Agency

About this bridge

NM-549 over Union Pacific R/R is a prestressed concrete continuous stringer/multi-beam or girder carrying NM-549 over Union Pacific R/R in Luna County, New Mexico. It was built in 2016, so it is 9 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 819 vehicles a day, roughly 11% of them trucks, projected to reach 1,113 by 2043. The structure is 289 ft (88.1 m) long and 39 ft wide. If it were closed, the detour would be 28 mi (45 km).

Location

Open in Google Maps
CarriesNM-549
CrossesUnion Pacific R/R
Location23.9 MI E LOOP-22/DEMING
RouteState Highway 549
CountyLuna County
StateNew Mexico
Coordinates32.22507, -107.31866
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating59.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length289 ft (88.1 m)
Longest span0 ft (0 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic819 (2023)
Projected traffic1,113 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed28 mi (45 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-549 over Union Pacific R/R built?

It was built in 2016, making it 9 years old in 2025.

What condition is NM-549 over Union Pacific R/R in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does NM-549 over Union Pacific R/R carry?

About 819 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-549 over Union Pacific R/R?

The structure is 289 ft (88.1 m) long and a deck 39 ft wide.

Who owns NM-549 over Union Pacific R/R?

It is owned by the State Highway Agency.