120th Avenue over Third Creek
FairAdams County, Colorado · .5 MI West of Tower Road · Structure no. COMC-08-2.5-01A
- Built
- 2001
- 24 years old
- Condition
- Fair
- inspected December 2023
- Type
- Culvert
- Concrete
- Length
- 76 ft
- 7 main spans
- Daily traffic
- 15,963
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
120th Avenue over Third Creek is a concrete culvert carrying 120th Avenue over Third Creek in Adams County, Colorado. It was built in 2001, so it is 24 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 15,963 vehicles a day, roughly 2% of them trucks, projected to reach 20,752 by 2041. The structure is 76 ft (23.2 m) long and 140 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 120th Avenue over Third Creek built?
It was built in 2001, making it 24 years old in 2025.
What condition is 120th Avenue over Third Creek 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 December 2023.
How much traffic does 120th Avenue over Third Creek carry?
About 15,963 vehicles per day (2021 count), of which roughly 2% are trucks.
How long is 120th Avenue over Third Creek?
The structure is 76 ft (23.2 m) long with a longest span of 10 ft (3.1 m) and a deck 140 ft wide.
Who owns 120th Avenue over Third Creek?
It is owned by the City or Municipal Highway Agency.