SH 145 Ml over San Miguel River
FairSan Miguel County, Colorado · @ JCT With Telluride Spur · Structure no. M-05-D
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected December 2023
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 7,600
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SH 145 Ml over San Miguel River is a concrete culvert carrying SH 145 Ml over San Miguel River in San Miguel County, Colorado. It was built in 1960, so it is 65 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 7,600 vehicles a day, roughly 5% of them trucks, projected to reach 8,664 by 2040. The structure is 21 ft (6.4 m) long and 127 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 7 Good | Some minor problems. |
| 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 SH 145 Ml over San Miguel River built?
It was built in 1960, making it 65 years old in 2025.
What condition is SH 145 Ml over San Miguel River 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 December 2023.
How much traffic does SH 145 Ml over San Miguel River carry?
About 7,600 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is SH 145 Ml over San Miguel River?
The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 127 ft wide.
Who owns SH 145 Ml over San Miguel River?
It is owned by the State Highway Agency.