US Bridges

NM-412 over I-40 Ebl/Wbl MP 63.4

Fair

McKinley County, New Mexico · Junction I-40/NM-412 · Structure no. 000000000006380

Built
1963
62 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
237 ft
5 main spans
Daily traffic
329
2023 count
Owner
State
State Highway Agency

About this bridge

NM-412 over I-40 Ebl/Wbl MP 63.4 is a prestressed concrete stringer/multi-beam or girder carrying NM-412 over I-40 Ebl/Wbl MP 63.4 in McKinley County, New Mexico. It was built in 1963, so it is 62 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 329 vehicles a day, roughly 11% of them trucks, projected to reach 447 by 2043. The structure is 237 ft (72.2 m) long and 31 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesNM-412
CrossesI-40 Ebl/Wbl MP 63.4
LocationJunction I-40/NM-412
RouteState Highway 412
CountyMcKinley County
StateNew Mexico
Coordinates35.36334, -108.05232
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length237 ft (72.2 m)
Longest span54 ft (16.6 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic329 (2023)
Projected traffic447 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.7 million (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-412 over I-40 Ebl/Wbl MP 63.4 built?

It was built in 1963, making it 62 years old in 2025.

What condition is NM-412 over I-40 Ebl/Wbl MP 63.4 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 December 2024.

How much traffic does NM-412 over I-40 Ebl/Wbl MP 63.4 carry?

About 329 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-412 over I-40 Ebl/Wbl MP 63.4?

The structure is 237 ft (72.2 m) long with a longest span of 54 ft (16.6 m) and a deck 31 ft wide.

Who owns NM-412 over I-40 Ebl/Wbl MP 63.4?

It is owned by the State Highway Agency.