US Bridges

I-25 Sbl over LOOP-15/LAS Vegas

Good

San Miguel County, New Mexico · South Las Vegas Interchng · Structure no. 000000000007333

Built
1973
52 years old, rebuilt 2008
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
210 ft
3 main spans
Daily traffic
8,989
2022 count
Owner
State
State Highway Agency

About this bridge

I-25 Sbl over LOOP-15/LAS Vegas is a prestressed concrete stringer/multi-beam or girder carrying I-25 Sbl over LOOP-15/LAS Vegas in San Miguel County, New Mexico. It was built in 1973 and reconstructed in 2008, so it is 52 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 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 8,989 vehicles a day, roughly 26% of them trucks, projected to reach 12,225 by 2042. The structure is 210 ft (64 m) long and 45 ft wide.

CarriesI-25 Sbl
CrossesLOOP-15/LAS Vegas
LocationSouth Las Vegas Interchng
RouteInterstate 25
Coordinates35.56904, -105.2205
Functional classRural 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 inspectionMay 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 rating71.1 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length210 ft (64 m)
Longest span99 ft (30.2 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,989 (2022)
Projected traffic12,225 by 2042
Trucks26%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$370,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Sbl over LOOP-15/LAS Vegas built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2008.

What condition is I-25 Sbl over LOOP-15/LAS Vegas 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 May 2024.

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

About 8,989 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is I-25 Sbl over LOOP-15/LAS Vegas?

The structure is 210 ft (64 m) long with a longest span of 99 ft (30.2 m) and a deck 45 ft wide.

Who owns I-25 Sbl over LOOP-15/LAS Vegas?

It is owned by the State Highway Agency.