US Bridges

NM-122 over BNSF Railroad

Fair

Cibola County, New Mexico · 1.9 MI E of NM-605 · Structure no. 000000000008563

Built
1985
40 years old, rebuilt 2012
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
272 ft
3 main spans
Daily traffic
9,054
2023 count
Owner
State
State Highway Agency

About this bridge

NM-122 over BNSF Railroad is a steel continuous stringer/multi-beam or girder carrying NM-122 over BNSF Railroad in Cibola County, New Mexico. It was built in 1985 and reconstructed in 2012, so it is 40 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 9,054 vehicles a day, roughly 12% of them trucks, projected to reach 12,313 by 2043. The structure is 272 ft (82.9 m) long and 89 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNM-122
CrossesBNSF Railroad
Location1.9 MI E of NM-605
RouteState Highway 122
Coordinates35.16248, -107.88326
Functional classUrban Other Principal Arterial

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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.6 US tons
Inventory rating44.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length272 ft (82.9 m)
Longest span108 ft (32.8 m)
Deck width89 ft (27.1 m)
Roadway width86 ft (26.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,054 (2023)
Projected traffic12,313 by 2043
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

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-122 over BNSF Railroad built?

It was built in 1985, making it 40 years old in 2025. It was reconstructed in 2012.

What condition is NM-122 over BNSF Railroad 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 May 2024.

How much traffic does NM-122 over BNSF Railroad carry?

About 9,054 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is NM-122 over BNSF Railroad?

The structure is 272 ft (82.9 m) long with a longest span of 108 ft (32.8 m) and a deck 89 ft wide.

Who owns NM-122 over BNSF Railroad?

It is owned by the State Highway Agency.