US Bridges

I-25 Nbl over I-25 Service Road

Fair

Mora County, New Mexico · 2.6 MI S of JCT NM-120 · Structure no. 000000000007154

Built
1971
54 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
85 ft
3 main spans
Daily traffic
5,320
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over I-25 Service Road is a concrete continuous slab carrying I-25 Nbl over I-25 Service Road in Mora County, New Mexico. It was built in 1971, so it is 54 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 6 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 5,320 vehicles a day, roughly 45% of them trucks, projected to reach 7,235 by 2043. The structure is 85 ft (25.9 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesI-25 Nbl
CrossesI-25 Service Road
Location2.6 MI S of JCT NM-120
RouteInterstate 25
CountyMora County
StateNew Mexico
Coordinates35.97998, -104.7402
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.9 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length85 ft (25.9 m)
Longest span33 ft (10.1 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,320 (2023)
Projected traffic7,235 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Nbl over I-25 Service Road built?

It was built in 1971, making it 54 years old in 2025.

What condition is I-25 Nbl over I-25 Service Road 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 June 2023.

How much traffic does I-25 Nbl over I-25 Service Road carry?

About 5,320 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-25 Nbl over I-25 Service Road?

The structure is 85 ft (25.9 m) long with a longest span of 33 ft (10.1 m) and a deck 45 ft wide.

Who owns I-25 Nbl over I-25 Service Road?

It is owned by the State Highway Agency.