US Bridges

I-25 Nbl over NM-120

Fair

Mora County, New Mexico · JCT I-25/NM-120-WAGON Mnd · Structure no. 000000000007048

Built
1971
54 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
140 ft
3 main spans
Daily traffic
6,256
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over NM-120 is a prestressed concrete stringer/multi-beam or girder carrying I-25 Nbl over NM-120 in Mora County, New Mexico. It was built in 1971, so it is 54 years old, older 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 5 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 6,256 vehicles a day, roughly 45% of them trucks, projected to reach 8,508 by 2043. The structure is 140 ft (42.7 m) long and 41 ft wide.

CarriesI-25 Nbl
CrossesNM-120
LocationJCT I-25/NM-120-WAGON Mnd
RouteInterstate 25
Coordinates36.01181, -104.70781
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.8 US tons
Inventory rating32.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length140 ft (42.7 m)
Longest span66 ft (20.1 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,256 (2023)
Projected traffic8,508 by 2043
Trucks45%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-25 Nbl over NM-120 built?

It was built in 1971, making it 54 years old in 2025.

What condition is I-25 Nbl over NM-120 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 June 2024.

How much traffic does I-25 Nbl over NM-120 carry?

About 6,256 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-25 Nbl over NM-120?

The structure is 140 ft (42.7 m) long with a longest span of 66 ft (20.1 m) and a deck 41 ft wide.

Who owns I-25 Nbl over NM-120?

It is owned by the State Highway Agency.