US Bridges

L-00012 over Socorro Canyon

Fair

Socorro County, New Mexico · 10.2 MI N of US-380 · Structure no. 000000000006319

Built
1939
86 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
54 ft
5 main spans
Daily traffic
9,312
2023 count
Owner
State
State Highway Agency

About this bridge

L-00012 over Socorro Canyon is a concrete culvert carrying L-00012 over Socorro Canyon in Socorro County, New Mexico. It was built in 1939, so it is 86 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 9,312 vehicles a day, roughly 12% of them trucks, projected to reach 12,664 by 2043. The structure is 54 ft (16.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesL-00012
CrossesSocorro Canyon
Location10.2 MI N of US-380
RouteState Highway 12
Coordinates34.06339, -106.89226
Functional classUrban Other Principal Arterial

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 spans5
Design loadH 15
Structure length54 ft (16.5 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 traffic9,312 (2023)
Projected traffic12,664 by 2043
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 L-00012 over Socorro Canyon built?

It was built in 1939, making it 86 years old in 2025.

What condition is L-00012 over Socorro Canyon 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 2024.

How much traffic does L-00012 over Socorro Canyon carry?

About 9,312 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is L-00012 over Socorro Canyon?

The structure is 54 ft (16.5 m) long with a longest span of 10 ft (3 m).

Who owns L-00012 over Socorro Canyon?

It is owned by the State Highway Agency.