US Bridges

I-25 Sbl over I-25 Service Road

Fair

Mora County, New Mexico · 4.4 MI N of JCT NM-120 · Structure no. 000000000006848

Built
1970
55 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
94 ft
3 main spans
Daily traffic
5,966
2022 count
Owner
State
State Highway Agency

About this bridge

I-25 Sbl over I-25 Service Road is a concrete continuous slab carrying I-25 Sbl over I-25 Service Road in Mora County, New Mexico. It was built in 1970, so it is 55 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 5,966 vehicles a day, roughly 26% of them trucks, projected to reach 8,113 by 2042. The structure is 94 ft (28.7 m) long and 41 ft wide.

Location

Open in Google Maps
CarriesI-25 Sbl
CrossesI-25 Service Road
Location4.4 MI N of JCT NM-120
RouteInterstate 25
CountyMora County
StateNew Mexico
Coordinates36.0874, -104.68858
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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.1 US tons
Inventory rating28.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length94 ft (28.7 m)
Longest span36 ft (11 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,966 (2022)
Projected traffic8,113 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$274,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

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

It was built in 1970, making it 55 years old in 2025.

What condition is I-25 Sbl 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 September 2024.

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

About 5,966 vehicles per day (2022 count), of which roughly 26% are trucks.

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

The structure is 94 ft (28.7 m) long with a longest span of 36 ft (11 m) and a deck 41 ft wide.

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

It is owned by the State Highway Agency.