US Bridges

I-25 Nbl over Unnamed Waterway

Fair

San Miguel County, New Mexico · 8.3 MI N of NM-104/VEGAS · Structure no. 000000000006884

Built
1967
58 years old
Condition
Fair
inspected November 2021
Type
Culvert
Concrete
Length
40 ft
6 main spans
Daily traffic
7,173
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over Unnamed Waterway is a concrete culvert carrying I-25 Nbl over Unnamed Waterway in San Miguel County, New Mexico. It was built in 1967, so it is 58 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 7,173 vehicles a day, roughly 45% of them trucks, projected to reach 9,755 by 2043. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-25 Nbl
CrossesUnnamed Waterway
Location8.3 MI N of NM-104/VEGAS
RouteInterstate 25
CountySan Miguel County
StateNew Mexico
Coordinates35.69004, -105.13187
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,173 (2023)
Projected traffic9,755 by 2043
Trucks45%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 over Unnamed Waterway built?

It was built in 1967, making it 58 years old in 2025.

What condition is I-25 Nbl 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 November 2021.

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

About 7,173 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-25 Nbl over Unnamed Waterway?

The structure is 40 ft (12.2 m) long with a longest span of 6 ft (1.8 m).

Who owns I-25 Nbl over Unnamed Waterway?

It is owned by the State Highway Agency.