NM-1 over Spikey Arroyo
PoorPosted for loadSocorro County, New Mexico · 19.5 MI N of Sierra C/L · Structure no. 000000000001653
- Built
- 1931
- 94 years old
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 203 ft
- 8 main spans
- Daily traffic
- 40
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NM-1 over Spikey Arroyo is a wood or timber stringer/multi-beam or girder carrying NM-1 over Spikey Arroyo in Socorro County, New Mexico. It was built in 1931, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 40 vehicles a day, roughly 10% of them trucks, projected to reach 54 by 2043. The structure is 203 ft (61.8 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NM-1 over Spikey Arroyo built?
It was built in 1931, making it 94 years old in 2025.
What condition is NM-1 over Spikey Arroyo in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.
How much traffic does NM-1 over Spikey Arroyo carry?
About 40 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is NM-1 over Spikey Arroyo?
The structure is 203 ft (61.8 m) long with a longest span of 25 ft (7.6 m) and a deck 26 ft wide.
Who owns NM-1 over Spikey Arroyo?
It is owned by the State Highway Agency.