US Bridges

I-25 Sbl over LOOP-16

Fair

Colfax County, New Mexico · South Springer Interchang · Structure no. 000000000007287

Built
1973
52 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
150 ft
3 main spans
Daily traffic
5,667
2022 count
Owner
State
State Highway Agency

About this bridge

I-25 Sbl over LOOP-16 is a prestressed concrete stringer/multi-beam or girder carrying I-25 Sbl over LOOP-16 in Colfax County, New Mexico. It was built in 1973, 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 fair condition with a lowest component rating of 5 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 5,667 vehicles a day, roughly 26% of them trucks, projected to reach 7,707 by 2042. The structure is 150 ft (45.7 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesI-25 Sbl
CrossesLOOP-16
LocationSouth Springer Interchang
RouteInterstate 25
CountyColfax County
StateNew Mexico
Coordinates36.35173, -104.60687
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating31.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span54 ft (16.5 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,667 (2022)
Projected traffic7,707 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Sbl over LOOP-16 built?

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

What condition is I-25 Sbl over LOOP-16 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 March 2023.

How much traffic does I-25 Sbl over LOOP-16 carry?

About 5,667 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is I-25 Sbl over LOOP-16?

The structure is 150 ft (45.7 m) long with a longest span of 54 ft (16.5 m) and a deck 45 ft wide.

Who owns I-25 Sbl over LOOP-16?

It is owned by the State Highway Agency.