US Bridges

I-40 Wbl over Unnamed Waterway

Good

Quay County, New Mexico · 17.2 MI E of NM-129 · Structure no. 000000000006408

Built
1961
64 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete
Length
33 ft
5 main spans
Daily traffic
20,855
2023 count
Owner
State
State Highway Agency

About this bridge

I-40 Wbl over Unnamed Waterway is a concrete culvert carrying I-40 Wbl over Unnamed Waterway in Quay County, New Mexico. It was built in 1961, so it is 64 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 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 20,855 vehicles a day, roughly 45% of them trucks, projected to reach 28,362 by 2043. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-40 Wbl
CrossesUnnamed Waterway
Location17.2 MI E of NM-129
RouteInterstate 40
CountyQuay County
StateNew Mexico
Coordinates35.1201, -103.9743
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadH 20
Structure length33 ft (10.1 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,855 (2023)
Projected traffic28,362 by 2043
Trucks45%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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 Unnamed Waterway built?

It was built in 1961, making it 64 years old in 2025.

What condition is I-40 Wbl over Unnamed Waterway 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 November 2021.

How much traffic does I-40 Wbl over Unnamed Waterway carry?

About 20,855 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-40 Wbl over Unnamed Waterway?

The structure is 33 ft (10.1 m) long with a longest span of 6 ft (1.8 m).

Who owns I-40 Wbl over Unnamed Waterway?

It is owned by the State Highway Agency.