E 56th Avenue over Irondale Gulch
FairDenver County, Colorado · Just East of Chambers RD · Structure no. D-10-HC-395
- Built
- 2000
- 25 years old
- Condition
- Fair
- inspected December 2024
- Type
- Culvert
- Concrete
- Length
- 63 ft
- 3 main spans
- Daily traffic
- 17,525
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
E 56th Avenue over Irondale Gulch is a concrete culvert carrying E 56th Avenue over Irondale Gulch in Denver County, Colorado. It was built in 2000, so it is 25 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 17,525 vehicles a day, roughly 2% of them trucks, projected to reach 19,453 by 2041. The structure is 63 ft (19.3 m) long and 193 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 E 56th Avenue over Irondale Gulch built?
It was built in 2000, making it 25 years old in 2025.
What condition is E 56th Avenue over Irondale Gulch 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 2024.
How much traffic does E 56th Avenue over Irondale Gulch carry?
About 17,525 vehicles per day (2021 count), of which roughly 2% are trucks.
How long is E 56th Avenue over Irondale Gulch?
The structure is 63 ft (19.3 m) long with a longest span of 20 ft (6.1 m) and a deck 193 ft wide.
Who owns E 56th Avenue over Irondale Gulch?
It is owned by the City or Municipal Highway Agency.