US Bridges

I-40 Wbl over Conchas Canal

Fair

Quay County, New Mexico · 0.5 M E JCT NM-209/I-40 · Structure no. 000000000008204

Built
1981
44 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
161 ft
3 main spans
Daily traffic
21,342
2023 count
Owner
State
State Highway Agency

About this bridge

I-40 Wbl over Conchas Canal is a prestressed concrete continuous stringer/multi-beam or girder carrying I-40 Wbl over Conchas Canal in Quay County, New Mexico. It was built in 1981, so it is 44 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 21,342 vehicles a day, roughly 45% of them trucks, projected to reach 29,025 by 2043. The structure is 161 ft (49.1 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesI-40 Wbl
CrossesConchas Canal
Location0.5 M E JCT NM-209/I-40
RouteInterstate 40
CountyQuay County
StateNew Mexico
Coordinates35.15162, -103.71708
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating33.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length161 ft (49.1 m)
Longest span62 ft (18.9 m)
Deck width45 ft (13.7 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,342 (2023)
Projected traffic29,025 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 Conchas Canal built?

It was built in 1981, making it 44 years old in 2025.

What condition is I-40 Wbl over Conchas Canal 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 October 2023.

How much traffic does I-40 Wbl over Conchas Canal carry?

About 21,342 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-40 Wbl over Conchas Canal?

The structure is 161 ft (49.1 m) long with a longest span of 62 ft (18.9 m) and a deck 45 ft wide.

Who owns I-40 Wbl over Conchas Canal?

It is owned by the State Highway Agency.