County Road 17 over Little Thompson River
FairLarimer County, Colorado · 0.7 MI N of CO RD 2E · Structure no. LR17-0.7-2E-A
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected April 2023
- Type
- Tee Beam
- Prestressed Concrete Continuous
- Length
- 113 ft
- 2 main spans
- Daily traffic
- 962
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
County Road 17 over Little Thompson River is a prestressed concrete continuous tee beam carrying County Road 17 over Little Thompson River in Larimer County, Colorado. It was built in 1986, so it is 39 years old, younger 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 962 vehicles a day, roughly 7% of them trucks, projected to reach 1,202 by 2042. The structure is 113 ft (34.4 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County Road 17 over Little Thompson River built?
It was built in 1986, making it 39 years old in 2025.
What condition is County Road 17 over Little 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 April 2023.
How much traffic does County Road 17 over Little Thompson River carry?
About 962 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is County Road 17 over Little Thompson River?
The structure is 113 ft (34.4 m) long with a longest span of 53 ft (16.2 m) and a deck 39 ft wide.
Who owns County Road 17 over Little Thompson River?
It is owned by the County Highway Agency.