IRR BIA RTE 7 over Virgin Creek
PoorPosted for loadDewey County, South Dakota · 0.5 KM East of Promise · Structure no. 00000000000A111
- Built
- 1961
- 64 years old
- Condition
- Poor
- inspected May 2023
- Type
- Channel Beam
- Concrete
- Length
- 148 ft
- 5 main spans
- Daily traffic
- 105
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 7 over Virgin Creek is a concrete channel beam carrying IRR BIA RTE 7 over Virgin Creek in Dewey County, South Dakota. It was built in 1961, so it is 64 years old, older than the South Dakota average of 48.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 105 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2043. The structure is 148 ft (45.1 m) long and 25 ft wide. If it were closed, the detour would be 37.9 mi (61 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE 7 over Virgin Creek built?
It was built in 1961, making it 64 years old in 2025.
What condition is IRR BIA RTE 7 over Virgin Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.
How much traffic does IRR BIA RTE 7 over Virgin Creek carry?
About 105 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is IRR BIA RTE 7 over Virgin Creek?
The structure is 148 ft (45.1 m) long with a longest span of 31 ft (9.4 m) and a deck 25 ft wide.
Who owns IRR BIA RTE 7 over Virgin Creek?
It is owned by the Bureau of Indian Affairs.