US Bridges

I-40 Wbl over Rio Puerco

Fair

McKinley County, New Mexico · 8.0 MI E of JCT US-491 · Structure no. 000000000006561

Built
1965
60 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
155 ft
5 main spans
Daily traffic
25,439
2023 count
Owner
State
State Highway Agency

About this bridge

I-40 Wbl over Rio Puerco is a concrete continuous slab carrying I-40 Wbl over Rio Puerco in McKinley County, New Mexico. It was built in 1965, so it is 60 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 25,439 vehicles a day, roughly 45% of them trucks, projected to reach 34,597 by 2043. The structure is 155 ft (47.2 m) long and 42 ft wide.

CarriesI-40 Wbl
CrossesRio Puerco
Location8.0 MI E of JCT US-491
RouteInterstate 40
Coordinates35.5299, -108.6047
Functional classRural 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.3 US tons
Inventory rating36.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length155 ft (47.2 m)
Longest span33 ft (10.2 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,439 (2023)
Projected traffic34,597 by 2043
Trucks45%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 Rio Puerco built?

It was built in 1965, making it 60 years old in 2025.

What condition is I-40 Wbl over Rio Puerco 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 November 2024.

How much traffic does I-40 Wbl over Rio Puerco carry?

About 25,439 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-40 Wbl over Rio Puerco?

The structure is 155 ft (47.2 m) long with a longest span of 33 ft (10.2 m) and a deck 42 ft wide.

Who owns I-40 Wbl over Rio Puerco?

It is owned by the State Highway Agency.