US Bridges

NM-58 over I-25 Nbl/Sbl

Fair

Colfax County, New Mexico · Junction I-25/NM-58 · Structure no. 000000000007126

Built
1970
55 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
281 ft
4 main spans
Daily traffic
887
2023 count
Owner
State
State Highway Agency

About this bridge

NM-58 over I-25 Nbl/Sbl is a prestressed concrete stringer/multi-beam or girder carrying NM-58 over I-25 Nbl/Sbl in Colfax County, New Mexico. It was built in 1970, so it is 55 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 887 vehicles a day, roughly 11% of them trucks, projected to reach 1,206 by 2043. The structure is 281 ft (85.6 m) long and 34 ft wide.

Location

Open in Google Maps
CarriesNM-58
CrossesI-25 Nbl/Sbl
LocationJunction I-25/NM-58
RouteState Highway 58
CountyColfax County
StateNew Mexico
Coordinates36.44893, -104.59543
Functional classRural Major Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length281 ft (85.6 m)
Longest span97 ft (29.6 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic887 (2023)
Projected traffic1,206 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NM-58 over I-25 Nbl/Sbl built?

It was built in 1970, making it 55 years old in 2025.

What condition is NM-58 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 2024.

How much traffic does NM-58 over I-25 Nbl/Sbl carry?

About 887 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NM-58 over I-25 Nbl/Sbl?

The structure is 281 ft (85.6 m) long with a longest span of 97 ft (29.6 m) and a deck 34 ft wide.

Who owns NM-58 over I-25 Nbl/Sbl?

It is owned by the State Highway Agency.