CO RD 20(W 1st St) over Big Thompson River
GoodLarimer County, Colorado · 0.5 MI E of Taft Avenue · Structure no. LOV0790WFIRSTST
- Built
- 2001
- 24 years old
- Condition
- Good
- inspected May 2023
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 137 ft
- 2 main spans
- Daily traffic
- 4,384
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
CO RD 20(W 1st St) over Big Thompson River is a prestressed concrete continuous box beam or girders - single or spread carrying CO RD 20(W 1st St) over Big Thompson River in Larimer 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 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 4,384 vehicles a day, roughly 11% of them trucks, projected to reach 5,480 by 2043. The structure is 137 ft (41.7 m) long and 68 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 CO RD 20(W 1st St) over Big Thompson River built?
It was built in 2001, making it 24 years old in 2025.
What condition is CO RD 20(W 1st St) 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 CO RD 20(W 1st St) over Big Thompson River carry?
About 4,384 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is CO RD 20(W 1st St) over Big Thompson River?
The structure is 137 ft (41.7 m) long with a longest span of 63 ft (19.3 m) and a deck 68 ft wide.
Who owns CO RD 20(W 1st St) over Big Thompson River?
It is owned by the City or Municipal Highway Agency.