NM-1 over Mulligan Gulch
FairSocorro County, New Mexico · 2.4 Mi. N of Jct. NM-107 · Structure no. 000000000003179
- Built
- 1937
- 88 years old
- Condition
- Fair
- inspected May 2024
- Type
- Culvert
- Concrete
- Length
- 301 ft
- 30 main spans
- Daily traffic
- 41
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NM-1 over Mulligan Gulch is a concrete culvert carrying NM-1 over Mulligan Gulch in Socorro County, New Mexico. It was built in 1937, so it is 88 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 41 vehicles a day, roughly 9% of them trucks, projected to reach 55 by 2043. The structure is 301 ft (91.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NM-1 over Mulligan Gulch built?
It was built in 1937, making it 88 years old in 2025.
What condition is NM-1 over Mulligan Gulch 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-1 over Mulligan Gulch carry?
About 41 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is NM-1 over Mulligan Gulch?
The structure is 301 ft (91.6 m) long with a longest span of 9 ft (2.7 m).
Who owns NM-1 over Mulligan Gulch?
It is owned by the State Highway Agency.