US Bridges

NM-1 over San Jose Canyon

Fair

Sierra County, New Mexico · 0.3 Miles West of Exit 10 · Structure no. 000000000002077

Built
1938
87 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
91 ft
9 main spans
Daily traffic
27
2023 count
Owner
State
State Highway Agency

About this bridge

NM-1 over San Jose Canyon is a concrete culvert carrying NM-1 over San Jose Canyon in Sierra County, New Mexico. It was built in 1938, so it is 87 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 27 vehicles a day, roughly 11% of them trucks, projected to reach 36 by 2043. The structure is 91 ft (27.7 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesNM-1
CrossesSan Jose Canyon
Location0.3 Miles West of Exit 10
RouteState Highway 1
Coordinates33.46911, -107.24687
Functional classRural Minor Collector

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 inspectionMay 2023
Inspection intervalevery 24 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 rating43.2 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans9
Design loadH 15
Structure length91 ft (27.7 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27 (2023)
Projected traffic36 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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-1 over San Jose Canyon built?

It was built in 1938, making it 87 years old in 2025.

What condition is NM-1 over San Jose Canyon 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 May 2023.

How much traffic does NM-1 over San Jose Canyon carry?

About 27 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-1 over San Jose Canyon?

The structure is 91 ft (27.7 m) long with a longest span of 9 ft (2.7 m).

Who owns NM-1 over San Jose Canyon?

It is owned by the State Highway Agency.