US Bridges

I-25 Nbl/Sbl FR RD over Unnamed Waterway

Fair

Socorro County, New Mexico · 0.6 MI N of JCT NM-408 · Structure no. 000000000003159

Built
1931
94 years old, rebuilt 1958
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
12,116
2023 count
Owner
State
State Highway Agency

About this bridge

I-25 Nbl/Sbl FR RD over Unnamed Waterway is a concrete culvert carrying I-25 Nbl/Sbl FR RD over Unnamed Waterway in Socorro County, New Mexico. It was built in 1931 and reconstructed in 1958, so it is 94 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 12,116 vehicles a day, roughly 45% of them trucks, projected to reach 16,477 by 2043. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-25 Nbl/Sbl FR RD
CrossesUnnamed Waterway
Location0.6 MI N of JCT NM-408
RouteInterstate 25
CountySocorro County
StateNew Mexico
Coordinates34.16616, -106.91976
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.7 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,116 (2023)
Projected traffic16,477 by 2043
Trucks45%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost$1.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-25 Nbl/Sbl FR RD over Unnamed Waterway built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1958.

What condition is I-25 Nbl/Sbl FR RD over Unnamed Waterway 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 February 2023.

How much traffic does I-25 Nbl/Sbl FR RD over Unnamed Waterway carry?

About 12,116 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-25 Nbl/Sbl FR RD over Unnamed Waterway?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m).

Who owns I-25 Nbl/Sbl FR RD over Unnamed Waterway?

It is owned by the State Highway Agency.