US Bridges

I-25 Nbl/Sbl over Unnamed Waterway

Fair

Bernalillo County, New Mexico · 3.1 M N of NM-500/ALBQ · Structure no. 000000000006325

Built
1961
64 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
24 ft
3 main spans
Daily traffic
119,665
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl/Sbl over Unnamed Waterway is a concrete culvert carrying I-25 Nbl/Sbl over Unnamed Waterway in Bernalillo County, New Mexico. It was built in 1961, so it is 64 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 119,665 vehicles a day, roughly 14% of them trucks, projected to reach 162,744 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesI-25 Nbl/Sbl
CrossesUnnamed Waterway
Location3.1 M N of NM-500/ALBQ
RouteInterstate 25
CountyBernalillo County
StateNew Mexico
Coordinates35.06781, -106.6392
Functional classUrban 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic119,665 (2023)
Projected traffic162,744 by 2043
Trucks14%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
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/Sbl over Unnamed Waterway built?

It was built in 1961, making it 64 years old in 2025.

What condition is I-25 Nbl/Sbl over Unnamed Waterway 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 January 2025.

How much traffic does I-25 Nbl/Sbl over Unnamed Waterway carry?

About 119,665 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is I-25 Nbl/Sbl over Unnamed Waterway?

The structure is 24 ft (7.3 m) long with a longest span of 7 ft (2.1 m).

Who owns I-25 Nbl/Sbl over Unnamed Waterway?

It is owned by the State Highway Agency.