US Bridges

I-25 Nbl over NM-445

Fair

Colfax County, New Mexico · JCT I-25/NM-455/MAXWELL · Structure no. 000000000007020

Built
1969
56 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
96 ft
3 main spans
Daily traffic
5,260
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl over NM-445 is a concrete continuous slab carrying I-25 Nbl over NM-445 in Colfax County, New Mexico. It was built in 1969, so it is 56 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 5,260 vehicles a day, roughly 45% of them trucks, projected to reach 7,153 by 2043. The structure is 96 ft (29.3 m) long and 41 ft wide.

CarriesI-25 Nbl
CrossesNM-445
LocationJCT I-25/NM-455/MAXWELL
RouteInterstate 25
Coordinates36.54003, -104.53926
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.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.4 US tons
Inventory rating41.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span39 ft (11.9 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,260 (2023)
Projected traffic7,153 by 2043
Trucks45%
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-25 Nbl over NM-445 built?

It was built in 1969, making it 56 years old in 2025.

What condition is I-25 Nbl over NM-445 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 July 2024.

How much traffic does I-25 Nbl over NM-445 carry?

About 5,260 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-25 Nbl over NM-445?

The structure is 96 ft (29.3 m) long with a longest span of 39 ft (11.9 m) and a deck 41 ft wide.

Who owns I-25 Nbl over NM-445?

It is owned by the State Highway Agency.