Union Ave over South Platte River
FairArapahoe County, Colorado · 0.3 MI W of Santa Fe DR · Structure no. ENGLWD-UNPR
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected September 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 190 ft
- 3 main spans
- Daily traffic
- 977
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Union Ave over South Platte River is a prestressed concrete tee beam carrying Union Ave over South Platte River in Arapahoe County, Colorado. It was built in 1965, so it is 60 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 5 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 977 vehicles a day, roughly 20% of them trucks, projected to reach 1,192 by 2041. The structure is 190 ft (57.9 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Union Ave over South Platte River built?
It was built in 1965, making it 60 years old in 2025.
What condition is Union Ave over South Platte River 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 September 2023.
How much traffic does Union Ave over South Platte River carry?
About 977 vehicles per day (2021 count), of which roughly 20% are trucks.
How long is Union Ave over South Platte River?
The structure is 190 ft (57.9 m) long with a longest span of 60 ft (18.4 m) and a deck 33 ft wide.
Who owns Union Ave over South Platte River?
It is owned by the City or Municipal Highway Agency.