SH 172 Ml over Florida River
FairLa Plata County, Colorado · 10 MI No of Ignacio · Structure no. P-05-R
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected October 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 104 ft
- 2 main spans
- Daily traffic
- 5,800
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SH 172 Ml over Florida River is a concrete continuous tee beam carrying SH 172 Ml over Florida River in La Plata County, Colorado. It was built in 1971, so it is 54 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 6 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 5,800 vehicles a day, roughly 5% of them trucks, projected to reach 7,482 by 2040. The structure is 104 ft (31.7 m) long and 47 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 7 Good | Some minor problems. |
| 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 172 Ml over Florida River built?
It was built in 1971, making it 54 years old in 2025.
What condition is SH 172 Ml over Florida 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 October 2023.
How much traffic does SH 172 Ml over Florida River carry?
About 5,800 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is SH 172 Ml over Florida River?
The structure is 104 ft (31.7 m) long with a longest span of 49 ft (14.9 m) and a deck 47 ft wide.
Who owns SH 172 Ml over Florida River?
It is owned by the State Highway Agency.