SH 142 Ml over Rio San Antonio
FairConejos County, Colorado · 3.5 Miles East of Manassa · Structure no. P-13-D
- Built
- 1940
- 85 years old
- Condition
- Fair
- inspected February 2025
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 116 ft
- 5 main spans
- Daily traffic
- 530
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SH 142 Ml over Rio San Antonio is a wood or timber stringer/multi-beam or girder carrying SH 142 Ml over Rio San Antonio in Conejos County, Colorado. It was built in 1940, so it is 85 years old, older than the Colorado average of 42.2 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 530 vehicles a day, roughly 13% of them trucks, projected to reach 625 by 2040. The structure is 116 ft (35.5 m) long and 30 ft wide. If it were closed, the detour would be 11.2 mi (18 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 142 Ml over Rio San Antonio built?
It was built in 1940, making it 85 years old in 2025.
What condition is SH 142 Ml over Rio San Antonio 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 2025.
How much traffic does SH 142 Ml over Rio San Antonio carry?
About 530 vehicles per day (2020 count), of which roughly 13% are trucks.
How long is SH 142 Ml over Rio San Antonio?
The structure is 116 ft (35.5 m) long with a longest span of 23 ft (7 m) and a deck 30 ft wide.
Who owns SH 142 Ml over Rio San Antonio?
It is owned by the State Highway Agency.