US Bridges

I-25 Nbl over LOOP-15/LAS Vegas

Good

San Miguel County, New Mexico · South Las Vegas Interchng · Structure no. 000000000007332

Built
1973
52 years old, rebuilt 2008
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
213 ft
3 main spans
Daily traffic
7,880
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over LOOP-15/LAS Vegas is a prestressed concrete stringer/multi-beam or girder carrying I-25 Nbl 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 7,880 vehicles a day, roughly 45% of them trucks, projected to reach 10,716 by 2043. The structure is 213 ft (64.9 m) long and 45 ft wide.

CarriesI-25 Nbl
CrossesLOOP-15/LAS Vegas
LocationSouth Las Vegas Interchng
RouteInterstate 25
Coordinates35.56884, -105.2203
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 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 length213 ft (64.9 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 traffic7,880 (2023)
Projected traffic10,716 by 2043
Trucks45%
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 proposedDeck replacement with only incidental widening
Estimated improvement cost$380,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Nbl 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 Nbl 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 Nbl over LOOP-15/LAS Vegas carry?

About 7,880 vehicles per day (2023 count), of which roughly 45% are trucks.

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

The structure is 213 ft (64.9 m) long with a longest span of 99 ft (30.2 m) and a deck 45 ft wide.

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

It is owned by the State Highway Agency.