SH 109 Ml over Purgatoire River
FairOtero County, Colorado · 18 MI S of LA Junta · Structure no. M-23-F
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 597 ft
- 6 main spans
- Daily traffic
- 350
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SH 109 Ml over Purgatoire River is a prestressed concrete continuous stringer/multi-beam or girder carrying SH 109 Ml over Purgatoire River in Otero County, Colorado. It was built in 1972, so it is 53 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 350 vehicles a day, roughly 17% of them trucks, projected to reach 483 by 2040. The structure is 597 ft (182 m) long and 34 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 109 Ml over Purgatoire River built?
It was built in 1972, making it 53 years old in 2025.
What condition is SH 109 Ml over Purgatoire 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 June 2024.
How much traffic does SH 109 Ml over Purgatoire River carry?
About 350 vehicles per day (2020 count), of which roughly 17% are trucks.
How long is SH 109 Ml over Purgatoire River?
The structure is 597 ft (182 m) long with a longest span of 99 ft (30.2 m) and a deck 34 ft wide.
Who owns SH 109 Ml over Purgatoire River?
It is owned by the State Highway Agency.