County Road 21 over Big Dry Creek
FairWeld County, Colorado · 0.5 MI N of CO RD 6 · Structure no. WEL021.0-006.0A
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected June 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 50 ft
- 1 main span
- Daily traffic
- 313
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
County Road 21 over Big Dry Creek is a prestressed concrete tee beam carrying County Road 21 over Big Dry Creek in Weld County, Colorado. It was built in 1970, so it is 55 years old, older 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 313 vehicles a day, roughly 45% of them trucks, projected to reach 444 by 2042. The structure is 50 ft (15.1 m) long and 32 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 21 over Big Dry Creek built?
It was built in 1970, making it 55 years old in 2025.
What condition is County Road 21 over Big Dry 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 June 2024.
How much traffic does County Road 21 over Big Dry Creek carry?
About 313 vehicles per day (2022 count), of which roughly 45% are trucks.
How long is County Road 21 over Big Dry Creek?
The structure is 50 ft (15.1 m) long with a longest span of 48 ft (14.5 m) and a deck 32 ft wide.
Who owns County Road 21 over Big Dry Creek?
It is owned by the County Highway Agency.