County Road 13 over Big Thompson River
GoodLarimer County, Colorado · 0.4 MI North of CO RD 54 · Structure no. WEL013.0_054.0A
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 125 ft
- 2 main spans
- Daily traffic
- 4,741
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
County Road 13 over Big Thompson River is a prestressed concrete continuous box beam or girders - multiple carrying County Road 13 over Big Thompson River in Larimer County, Colorado. It was built in 2009, so it is 16 years old, younger than the Colorado average of 42.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 4,741 vehicles a day, roughly 28% of them trucks, projected to reach 6,732 by 2043. The structure is 125 ft (38.1 m) long and 67 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County Road 13 over Big Thompson River built?
It was built in 2009, making it 16 years old in 2025.
What condition is County Road 13 over Big Thompson River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.
How much traffic does County Road 13 over Big Thompson River carry?
About 4,741 vehicles per day (2023 count), of which roughly 28% are trucks.
How long is County Road 13 over Big Thompson River?
The structure is 125 ft (38.1 m) long with a longest span of 58 ft (17.8 m) and a deck 67 ft wide.
Who owns County Road 13 over Big Thompson River?
It is owned by the County Highway Agency.