US Bridges

I-25 Sbl over BNSF Railroad

Fair

Socorro County, New Mexico · 9.4 MI N JCT I-25/US-380 · Structure no. 000000000007026

Built
1970
55 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
166 ft
3 main spans
Daily traffic
7,826
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Sbl over BNSF Railroad is a prestressed concrete stringer/multi-beam or girder carrying I-25 Sbl over BNSF Railroad in Socorro County, New Mexico. It was built in 1970, so it is 55 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 7,826 vehicles a day, roughly 14% of them trucks, projected to reach 10,643 by 2043. The structure is 166 ft (50.6 m) long and 41 ft wide.

Location

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CarriesI-25 Sbl
CrossesBNSF Railroad
Location9.4 MI N JCT I-25/US-380
RouteInterstate 25
CountySocorro County
StateNew Mexico
Coordinates34.05198, -106.88743
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length166 ft (50.6 m)
Longest span77 ft (23.5 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,826 (2023)
Projected traffic10,643 by 2043
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 Sbl over BNSF Railroad built?

It was built in 1970, making it 55 years old in 2025.

What condition is I-25 Sbl 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 February 2025.

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

About 7,826 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is I-25 Sbl over BNSF Railroad?

The structure is 166 ft (50.6 m) long with a longest span of 77 ft (23.5 m) and a deck 41 ft wide.

Who owns I-25 Sbl over BNSF Railroad?

It is owned by the State Highway Agency.