US Bridges

I-25 Nbl/Sbl over Green Canyon

Good

Sierra County, New Mexico · 1.75 M N of NM-546 · Structure no. 000000000009278

Built
2003
22 years old
Condition
Good
inspected December 2023
Type
Culvert
Steel
Length
22 ft
1 main span
Daily traffic
7,331
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl/Sbl over Green Canyon is a steel culvert carrying I-25 Nbl/Sbl over Green Canyon in Sierra County, New Mexico. It was built in 2003, so it is 22 years old, younger than the New Mexico average of 51.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,331 vehicles a day, roughly 45% of them trucks, projected to reach 9,970 by 2043. The structure is 22 ft (6.7 m) long.

Location

Open in Google Maps
CarriesI-25 Nbl/Sbl
CrossesGreen Canyon
Location1.75 M N of NM-546
RouteInterstate 25
CountySierra County
StateNew Mexico
Coordinates32.80276, -107.284
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.4 US tons
Inventory rating52.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,331 (2023)
Projected traffic9,970 by 2043
Trucks45%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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/Sbl over Green Canyon built?

It was built in 2003, making it 22 years old in 2025.

What condition is I-25 Nbl/Sbl over Green Canyon in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does I-25 Nbl/Sbl over Green Canyon carry?

About 7,331 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-25 Nbl/Sbl over Green Canyon?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m).

Who owns I-25 Nbl/Sbl over Green Canyon?

It is owned by the State Highway Agency.