120th Ave Ebnd over Riverdale RD
GoodAdams County, Colorado · 2 MI W of US85 · Structure no. ADA120-07.9E305
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 150 ft
- 1 main span
- Daily traffic
- 9,443
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
120th Ave Ebnd over Riverdale RD is a prestressed concrete stringer/multi-beam or girder carrying 120th Ave Ebnd over Riverdale RD in Adams County, Colorado. It was built in 2005, so it is 20 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 9,443 vehicles a day, roughly 2% of them trucks, projected to reach 12,276 by 2041. The structure is 150 ft (45.7 m) long and 46 ft wide. If it were closed, the detour would be 3.1 mi (5 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 120th Ave Ebnd over Riverdale RD built?
It was built in 2005, making it 20 years old in 2025.
What condition is 120th Ave Ebnd over Riverdale RD 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 December 2023.
How much traffic does 120th Ave Ebnd over Riverdale RD carry?
About 9,443 vehicles per day (2021 count), of which roughly 2% are trucks.
How long is 120th Ave Ebnd over Riverdale RD?
The structure is 150 ft (45.7 m) long with a longest span of 145 ft (44.2 m) and a deck 46 ft wide.
Who owns 120th Ave Ebnd over Riverdale RD?
It is owned by the County Highway Agency.