IRR BIA RTE 29 over One Mile Creek
PoorSioux County, North Dakota · 4 KM South of Fort Yates · Structure no. 00000000000A066
- Built
- 1950
- 75 years old
- Condition
- Poor
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 53 ft
- 1 main span
- Daily traffic
- 401
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 29 over One Mile Creek is a steel stringer/multi-beam or girder carrying IRR BIA RTE 29 over One Mile Creek in Sioux County, North Dakota. It was built in 1950, so it is 75 years old, older than the North Dakota average of 48.2 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.
It carries about 401 vehicles a day, roughly 15% of them trucks, projected to reach 600 by 2043. The structure is 53 ft (16.1 m) long and 25 ft wide. If it were closed, the detour would be 4.3 mi (7 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE 29 over One Mile Creek built?
It was built in 1950, making it 75 years old in 2025.
What condition is IRR BIA RTE 29 over One Mile 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 29 over One Mile Creek carry?
About 401 vehicles per day (2023 count), of which roughly 15% are trucks.
How long is IRR BIA RTE 29 over One Mile Creek?
The structure is 53 ft (16.1 m) long with a longest span of 50 ft (15.2 m) and a deck 25 ft wide.
Who owns IRR BIA RTE 29 over One Mile Creek?
It is owned by the Bureau of Indian Affairs.