US Bridges

US-64 Wbl over I-25 Nbl/Sbl

Fair

Colfax County, New Mexico · Junction I-25/US-64/87 · Structure no. 000000000006108

Built
1959
66 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
238 ft
4 main spans
Daily traffic
5,574
2023 count
Owner
State
State Highway Agency

About this bridge

US-64 Wbl over I-25 Nbl/Sbl is a steel continuous stringer/multi-beam or girder carrying US-64 Wbl over I-25 Nbl/Sbl in Colfax County, New Mexico. It was built in 1959, so it is 66 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 5 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 5,574 vehicles a day, roughly 14% of them trucks, projected to reach 7,580 by 2043. The structure is 238 ft (72.5 m) long and 44 ft wide.

CarriesUS-64 Wbl
CrossesI-25 Nbl/Sbl
LocationJunction I-25/US-64/87
RouteU.S. Route 64
Coordinates36.88502, -104.43103
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.6 US tons
Inventory rating36.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length238 ft (72.5 m)
Longest span71 ft (21.6 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,574 (2023)
Projected traffic7,580 by 2043
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$570,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-64 Wbl over I-25 Nbl/Sbl built?

It was built in 1959, making it 66 years old in 2025.

What condition is US-64 Wbl over I-25 Nbl/Sbl 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 May 2023.

How much traffic does US-64 Wbl over I-25 Nbl/Sbl carry?

About 5,574 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is US-64 Wbl over I-25 Nbl/Sbl?

The structure is 238 ft (72.5 m) long with a longest span of 71 ft (21.6 m) and a deck 44 ft wide.

Who owns US-64 Wbl over I-25 Nbl/Sbl?

It is owned by the State Highway Agency.