US Bridges

NM-478 over Anthony Arroyo

Fair

Dona Ana County, New Mexico · 0.1 M N of Texas Line · Structure no. 000000000002590

Built
1955
70 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
72 ft
6 main spans
Daily traffic
13,966
2023 count
Owner
State
State Highway Agency

About this bridge

NM-478 over Anthony Arroyo is a concrete culvert carrying NM-478 over Anthony Arroyo in Dona Ana County, New Mexico. It was built in 1955, so it is 70 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 13,966 vehicles a day, roughly 13% of them trucks, projected to reach 18,993 by 2043. The structure is 72 ft (22 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNM-478
CrossesAnthony Arroyo
Location0.1 M N of Texas Line
RouteState Highway 478
CountyDona Ana County
StateNew Mexico
Coordinates32.00173, -106.60605
Functional classUrban Other Principal Arterial

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.7 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadHS 20
Structure length72 ft (22 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic13,966 (2023)
Projected traffic18,993 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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-478 over Anthony Arroyo built?

It was built in 1955, making it 70 years old in 2025.

What condition is NM-478 over Anthony Arroyo 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 August 2024.

How much traffic does NM-478 over Anthony Arroyo carry?

About 13,966 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is NM-478 over Anthony Arroyo?

The structure is 72 ft (22 m) long with a longest span of 10 ft (3 m).

Who owns NM-478 over Anthony Arroyo?

It is owned by the State Highway Agency.