US Bridges

I-25 Nbl/Sbl over Local County Road

Good

Colfax County, New Mexico · 13.0 MI N of JCT US-56 · Structure no. 000000000007071

Built
1969
56 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
29 ft
1 main span
Daily traffic
6,460
2018 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl/Sbl over Local County Road is a concrete culvert carrying I-25 Nbl/Sbl over Local County Road 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 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 6,460 vehicles a day, roughly 20% of them trucks, projected to reach 9,599 by 2038. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-25 Nbl/Sbl
CrossesLocal County Road
Location13.0 MI N of JCT US-56
RouteInterstate 25
CountyColfax County
StateNew Mexico
Coordinates36.53539, -104.54095
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
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length29 ft (8.8 m)
Longest span25 ft (7.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,460 (2018)
Projected traffic9,599 by 2038
Trucks20%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$409,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Nbl/Sbl over Local County Road built?

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

What condition is I-25 Nbl/Sbl over Local County Road 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 August 2024.

How much traffic does I-25 Nbl/Sbl over Local County Road carry?

About 6,460 vehicles per day (2018 count), of which roughly 20% are trucks.

How long is I-25 Nbl/Sbl over Local County Road?

The structure is 29 ft (8.8 m) long with a longest span of 25 ft (7.6 m).

Who owns I-25 Nbl/Sbl over Local County Road?

It is owned by the State Highway Agency.