County Road 9E over Big Thompson River
GoodLarimer County, Colorado · 0.4 MI N of ST HWY 402 · Structure no. LOV899SOCTYRD9E
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 131 ft
- 1 main span
- Daily traffic
- 5,310
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
County Road 9E over Big Thompson River is a prestressed concrete stringer/multi-beam or girder carrying County Road 9E over Big Thompson River in Larimer County, Colorado. It was built in 1988, so it is 37 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 5,310 vehicles a day, roughly 15% of them trucks, projected to reach 6,637 by 2043. The structure is 131 ft (39.8 m) long and 38 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 | 7 Good | Some minor problems. |
| 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 9E over Big Thompson River built?
It was built in 1988, making it 37 years old in 2025.
What condition is County Road 9E 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 2023.
How much traffic does County Road 9E over Big Thompson River carry?
About 5,310 vehicles per day (2023 count), of which roughly 15% are trucks.
How long is County Road 9E over Big Thompson River?
The structure is 131 ft (39.8 m) long with a longest span of 126 ft (38.3 m) and a deck 38 ft wide.
Who owns County Road 9E over Big Thompson River?
It is owned by the City or Municipal Highway Agency.