US 36 Ml over Big Thompson River
FairLarimer County, Colorado · In Estes Park · Structure no. C-14-A
- Built
- 1951
- 74 years old, rebuilt 2000
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 84 ft
- 1 main span
- Daily traffic
- 16,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 36 Ml over Big Thompson River is a steel stringer/multi-beam or girder carrying US 36 Ml over Big Thompson River in Larimer County, Colorado. It was built in 1951 and reconstructed in 2000, so it is 74 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 16,000 vehicles a day, roughly 3% of them trucks, projected to reach 17,920 by 2040. The structure is 84 ft (25.6 m) long and 67 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 US 36 Ml over Big Thompson River built?
It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2000.
What condition is US 36 Ml over Big Thompson 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 July 2023.
How much traffic does US 36 Ml over Big Thompson River carry?
About 16,000 vehicles per day (2020 count), of which roughly 3% are trucks.
How long is US 36 Ml over Big Thompson River?
The structure is 84 ft (25.6 m) long with a longest span of 78 ft (23.7 m) and a deck 67 ft wide.
Who owns US 36 Ml over Big Thompson River?
It is owned by the State Highway Agency.