US Bridges

NM-152 over Unnamed Waterway

Fair

Sierra County, New Mexico · 9.3 M W of Jct. I-25 · Structure no. 000000000009681

Built
1988
37 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
108 ft
6 main spans
Daily traffic
428
2023 count
Owner
State
State Highway Agency

About this bridge

NM-152 over Unnamed Waterway is a concrete culvert carrying NM-152 over Unnamed Waterway in Sierra County, New Mexico. It was built in 1988, so it is 37 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 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 428 vehicles a day, roughly 11% of them trucks, projected to reach 582 by 2043. The structure is 108 ft (32.8 m) long and 79 ft wide.

CarriesNM-152
CrossesUnnamed Waterway
Location9.3 M W of Jct. I-25
RouteU.S. Route 152
Coordinates32.9657, -107.46852
Functional classRural Major 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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating37.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadHL 93
Structure length108 ft (32.8 m)
Longest span12 ft (3.7 m)
Deck width79 ft (24.1 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic428 (2023)
Projected traffic582 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was NM-152 over Unnamed Waterway built?

It was built in 1988, making it 37 years old in 2025.

What condition is NM-152 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 September 2024.

How much traffic does NM-152 over Unnamed Waterway carry?

About 428 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-152 over Unnamed Waterway?

The structure is 108 ft (32.8 m) long with a longest span of 12 ft (3.7 m) and a deck 79 ft wide.

Who owns NM-152 over Unnamed Waterway?

It is owned by the State Highway Agency.