US Bridges

I-25 Sbl over LOOP-15

Good

San Miguel County, New Mexico · 2.0 MI N of JCT NM-104 · Structure no. 000000000008252

Built
1982
43 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
227 ft
2 main spans
Daily traffic
5,173
2022 count
Owner
State
State Highway Agency

About this bridge

I-25 Sbl over LOOP-15 is a steel continuous stringer/multi-beam or girder carrying I-25 Sbl over LOOP-15 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 5,173 vehicles a day, roughly 13% of them trucks, projected to reach 7,035 by 2042. The structure is 227 ft (69.2 m) long and 45 ft wide.

CarriesI-25 Sbl
CrossesLOOP-15
Location2.0 MI N of JCT NM-104
RouteInterstate 25
Coordinates35.6245, -105.2036
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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length227 ft (69.2 m)
Longest span115 ft (35.1 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,173 (2022)
Projected traffic7,035 by 2042
Trucks13%
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 Sbl over LOOP-15 built?

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

What condition is I-25 Sbl over LOOP-15 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 July 2024.

How much traffic does I-25 Sbl over LOOP-15 carry?

About 5,173 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is I-25 Sbl over LOOP-15?

The structure is 227 ft (69.2 m) long with a longest span of 115 ft (35.1 m) and a deck 45 ft wide.

Who owns I-25 Sbl over LOOP-15?

It is owned by the State Highway Agency.