US Bridges

NM-122 over I-40 Ebls/Wbls @ MP 47.9

Good

McKinley County, New Mexico · Top of World Exit 47 · Structure no. 000000000009659

Built
2017
8 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
180 ft
2 main spans
Daily traffic
337
2023 count
Owner
State
State Highway Agency

About this bridge

NM-122 over I-40 Ebls/Wbls @ MP 47.9 is a prestressed concrete continuous stringer/multi-beam or girder carrying NM-122 over I-40 Ebls/Wbls @ MP 47.9 in McKinley County, New Mexico. It was built in 2017, so it is 8 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 337 vehicles a day, projected to reach 458 by 2043. The structure is 180 ft (54.9 m) long and 39 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNM-122
CrossesI-40 Ebls/Wbls @ MP 47.9
LocationTop of World Exit 47
RouteState Highway 122
CountyMcKinley County
StateNew Mexico
Coordinates35.42375, -108.31239
Functional classRural Local

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.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.8 US tons
Inventory rating46.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length180 ft (54.9 m)
Longest span90 ft (27.4 m)
Deck width39 ft (11.9 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic337 (2023)
Projected traffic458 by 2043
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed9.9 mi (16 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-122 over I-40 Ebls/Wbls @ MP 47.9 built?

It was built in 2017, making it 8 years old in 2025.

What condition is NM-122 over I-40 Ebls/Wbls @ MP 47.9 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 July 2023.

How much traffic does NM-122 over I-40 Ebls/Wbls @ MP 47.9 carry?

About 337 vehicles per day (2023 count).

How long is NM-122 over I-40 Ebls/Wbls @ MP 47.9?

The structure is 180 ft (54.9 m) long with a longest span of 90 ft (27.4 m) and a deck 39 ft wide.

Who owns NM-122 over I-40 Ebls/Wbls @ MP 47.9?

It is owned by the State Highway Agency.