County Road 43 over N Fork Big Thompson Rive
GoodLarimer County, Colorado · 3.3 MI SE of CO RD 51B · Structure no. LR43-3.3-51B-A
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected May 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 71 ft
- 1 main span
- Daily traffic
- 349
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
County Road 43 over N Fork Big Thompson Rive is a prestressed concrete box beam or girders - multiple carrying County Road 43 over N Fork Big Thompson Rive in Larimer County, Colorado. It was built in 2016, so it is 9 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 349 vehicles a day, roughly 14% of them trucks, projected to reach 436 by 2042. The structure is 71 ft (21.5 m) long and 35 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County Road 43 over N Fork Big Thompson Rive built?
It was built in 2016, making it 9 years old in 2025.
What condition is County Road 43 over N Fork Big Thompson Rive 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 2023.
How much traffic does County Road 43 over N Fork Big Thompson Rive carry?
About 349 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is County Road 43 over N Fork Big Thompson Rive?
The structure is 71 ft (21.5 m) long with a longest span of 61 ft (18.7 m) and a deck 35 ft wide.
Who owns County Road 43 over N Fork Big Thompson Rive?
It is owned by the County Highway Agency.