US Bridges

NM-51 over Cuchillo Creek

Good

Sierra County, New Mexico · 2.2 MI E of LOOP-11/TRUTH · Structure no. 000000000009400

Built
2007
18 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
239 ft
3 main spans
Daily traffic
1,699
2023 count
Owner
State
State Highway Agency

About this bridge

NM-51 over Cuchillo Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying NM-51 over Cuchillo Creek in Sierra County, New Mexico. It was built in 2007, so it is 18 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 1,699 vehicles a day, roughly 5% of them trucks, projected to reach 2,310 by 2043. The structure is 239 ft (72.7 m) long and 45 ft wide. If it were closed, the detour would be 52.8 mi (85 km).

CarriesNM-51
CrossesCuchillo Creek
Location2.2 MI E of LOOP-11/TRUTH
RouteState Highway 51
Coordinates33.14889, -107.22152
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.3 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length239 ft (72.7 m)
Longest span91 ft (27.6 m)
Deck width45 ft (13.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,699 (2023)
Projected traffic2,310 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed52.8 mi (85 km)
TollOn a free road
National Highway SystemNo

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 NM-51 over Cuchillo Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is NM-51 over Cuchillo Creek 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 February 2024.

How much traffic does NM-51 over Cuchillo Creek carry?

About 1,699 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is NM-51 over Cuchillo Creek?

The structure is 239 ft (72.7 m) long with a longest span of 91 ft (27.6 m) and a deck 45 ft wide.

Who owns NM-51 over Cuchillo Creek?

It is owned by the State Highway Agency.