US Bridges

I-25 Sbl over Nogal Arroyo

Fair

Socorro County, New Mexico · 4.2 M S JCT NM-408/I-25 · Structure no. 000000000005806

Built
1958
67 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
214 ft
7 main spans
Daily traffic
12,698
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Sbl over Nogal Arroyo is a concrete continuous slab carrying I-25 Sbl over Nogal Arroyo in Socorro County, New Mexico. It was built in 1958, so it is 67 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 12,698 vehicles a day, roughly 14% of them trucks, projected to reach 17,269 by 2043. The structure is 214 ft (65.2 m) long and 42 ft wide.

Location

Open in Google Maps
CarriesI-25 Sbl
CrossesNogal Arroyo
Location4.2 M S JCT NM-408/I-25
RouteInterstate 25
CountySocorro County
StateNew Mexico
Coordinates34.09808, -106.89963
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length214 ft (65.2 m)
Longest span30 ft (9.1 m)
Deck width42 ft (12.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,698 (2023)
Projected traffic17,269 by 2043
Trucks14%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Sbl over Nogal Arroyo built?

It was built in 1958, making it 67 years old in 2025.

What condition is I-25 Sbl over Nogal Arroyo 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 November 2023.

How much traffic does I-25 Sbl over Nogal Arroyo carry?

About 12,698 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is I-25 Sbl over Nogal Arroyo?

The structure is 214 ft (65.2 m) long with a longest span of 30 ft (9.1 m) and a deck 42 ft wide.

Who owns I-25 Sbl over Nogal Arroyo?

It is owned by the State Highway Agency.