US Bridges

I-25 Nbl over BNSF Railroad

Fair

San Miguel County, New Mexico · 1.7 MI N of NM-104 · Structure no. 000000000008249

Built
1982
43 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
218 ft
3 main spans
Daily traffic
5,956
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over BNSF Railroad is a prestressed concrete stringer/multi-beam or girder carrying I-25 Nbl over BNSF Railroad in San Miguel County, New Mexico. It was built in 1982, so it is 43 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 5,956 vehicles a day, roughly 14% of them trucks, projected to reach 8,100 by 2043. The structure is 218 ft (66.4 m) long and 47 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesI-25 Nbl
CrossesBNSF Railroad
Location1.7 MI N of NM-104
RouteInterstate 25
CountySan Miguel County
StateNew Mexico
Coordinates35.62111, -105.20302
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 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 rating59.4 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length218 ft (66.4 m)
Longest span76 ft (23.2 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,956 (2023)
Projected traffic8,100 by 2043
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.2 mi (10 km)
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 BNSF Railroad built?

It was built in 1982, making it 43 years old in 2025.

What condition is I-25 Nbl 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 August 2024.

How much traffic does I-25 Nbl over BNSF Railroad carry?

About 5,956 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is I-25 Nbl over BNSF Railroad?

The structure is 218 ft (66.4 m) long with a longest span of 76 ft (23.2 m) and a deck 47 ft wide.

Who owns I-25 Nbl over BNSF Railroad?

It is owned by the State Highway Agency.