NM-104 over Alamosa Creek
PoorPosted for loadSan Miguel County, New Mexico · 18 M E JCT NM-129 · Structure no. 000000000005257
- Built
- 1952
- 73 years old
- Condition
- Poor
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 107 ft
- 5 main spans
- Daily traffic
- 243
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
NM-104 over Alamosa Creek is a wood or timber stringer/multi-beam or girder carrying NM-104 over Alamosa Creek in San Miguel County, New Mexico. It was built in 1952, so it is 73 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 3 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 243 vehicles a day, roughly 11% of them trucks, projected to reach 330 by 2043. The structure is 107 ft (32.6 m) long and 37 ft wide. If it were closed, the detour would be 13 mi (21 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NM-104 over Alamosa Creek built?
It was built in 1952, making it 73 years old in 2025.
What condition is NM-104 over Alamosa Creek 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 March 2024.
How much traffic does NM-104 over Alamosa Creek carry?
About 243 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is NM-104 over Alamosa Creek?
The structure is 107 ft (32.6 m) long with a longest span of 21 ft (6.4 m) and a deck 37 ft wide.
Who owns NM-104 over Alamosa Creek?
It is owned by the State Highway Agency.