US Bridges

I-25 Sbl over BNSF Railroad

Good

San Miguel County, New Mexico · 1.7 MI N of NM-104 · Structure no. 000000000008250

Built
1982
43 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
217 ft
3 main spans
Daily traffic
7,494
2022 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 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,494 vehicles a day, roughly 13% of them trucks, projected to reach 10,191 by 2042. The structure is 217 ft (66.1 m) long and 60 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesI-25 Sbl
CrossesBNSF Railroad
Location1.7 MI N of NM-104
RouteInterstate 25
Coordinates35.6208, -105.20329
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length217 ft (66.1 m)
Longest span76 ft (23.2 m)
Deck width60 ft (18.4 m)
Roadway width57 ft (17.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,494 (2022)
Projected traffic10,191 by 2042
Trucks13%
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 Sbl over BNSF Railroad built?

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

What condition is I-25 Sbl over BNSF Railroad in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

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

About 7,494 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is I-25 Sbl over BNSF Railroad?

The structure is 217 ft (66.1 m) long with a longest span of 76 ft (23.2 m) and a deck 60 ft wide.

Who owns I-25 Sbl over BNSF Railroad?

It is owned by the State Highway Agency.