US Bridges

I-25 Nbl over Cuchillo Negro Creek/Rd

Fair

Sierra County, New Mexico · 0.9 M N Torc Interchange · Structure no. 000000000007118

Built
1970
55 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
516 ft
7 main spans
Daily traffic
3,345
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over Cuchillo Negro Creek/Rd is a prestressed concrete continuous stringer/multi-beam or girder carrying I-25 Nbl over Cuchillo Negro Creek/Rd in Sierra 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 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 3,345 vehicles a day, roughly 45% of them trucks, projected to reach 4,549 by 2043. The structure is 516 ft (157.3 m) long and 41 ft wide.

Location

Open in Google Maps
CarriesI-25 Nbl
CrossesCuchillo Negro Creek/Rd
Location0.9 M N Torc Interchange
RouteInterstate 25
CountySierra County
StateNew Mexico
Coordinates33.17051, -107.2531
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating28.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length516 ft (157.3 m)
Longest span72 ft (21.9 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,345 (2023)
Projected traffic4,549 by 2043
Trucks45%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$500,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Nbl over Cuchillo Negro Creek/Rd built?

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

What condition is I-25 Nbl over Cuchillo Negro Creek/Rd 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 Nbl over Cuchillo Negro Creek/Rd carry?

About 3,345 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-25 Nbl over Cuchillo Negro Creek/Rd?

The structure is 516 ft (157.3 m) long with a longest span of 72 ft (21.9 m) and a deck 41 ft wide.

Who owns I-25 Nbl over Cuchillo Negro Creek/Rd?

It is owned by the State Highway Agency.