Seibert Circle over Tallman Gulch
FairDouglas County, Colorado · At Stonehenge · Structure no. PAR SIEBERT-0.2
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected February 2025
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 86 ft
- 3 main spans
- Daily traffic
- 918
- 2021 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Seibert Circle over Tallman Gulch is a prestressed concrete tee beam carrying Seibert Circle over Tallman Gulch in Douglas County, Colorado. It was built in 1972, so it is 53 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 918 vehicles a day, roughly 4% of them trucks, projected to reach 1,231 by 2041. The structure is 86 ft (26.1 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| 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 Seibert Circle over Tallman Gulch built?
It was built in 1972, making it 53 years old in 2025.
What condition is Seibert Circle over Tallman 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 February 2025.
How much traffic does Seibert Circle over Tallman Gulch carry?
About 918 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is Seibert Circle over Tallman Gulch?
The structure is 86 ft (26.1 m) long with a longest span of 26 ft (7.9 m) and a deck 33 ft wide.
Who owns Seibert Circle over Tallman Gulch?
It is owned by the Town or Township Highway Agency.