US Bridges

I-40 Wbl over County Road

Fair

McKinley County, New Mexico · 4.6 MI E of JCT US-491 · Structure no. 000000000007670

Built
1978
47 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
182 ft
3 main spans
Daily traffic
24,206
2023 count
Owner
State
State Highway Agency

About this bridge

I-40 Wbl over County Road is a prestressed concrete stringer/multi-beam or girder carrying I-40 Wbl over County Road in McKinley County, New Mexico. It was built in 1978, so it is 47 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 24,206 vehicles a day, roughly 14% of them trucks, projected to reach 32,920 by 2043. The structure is 182 ft (55.5 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesI-40 Wbl
CrossesCounty Road
Location4.6 MI E of JCT US-491
RouteInterstate 40
CountyMcKinley County
StateNew Mexico
Coordinates35.53458, -108.6803
Functional classUrban Principal Arterial - Interstate

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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length182 ft (55.5 m)
Longest span67 ft (20.4 m)
Deck width45 ft (13.7 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,206 (2023)
Projected traffic32,920 by 2043
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-40 Wbl over County Road built?

It was built in 1978, making it 47 years old in 2025.

What condition is I-40 Wbl over County Road 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 April 2024.

How much traffic does I-40 Wbl over County Road carry?

About 24,206 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is I-40 Wbl over County Road?

The structure is 182 ft (55.5 m) long with a longest span of 67 ft (20.4 m) and a deck 45 ft wide.

Who owns I-40 Wbl over County Road?

It is owned by the State Highway Agency.