Irrsr County Hiway over Porcupine Creek
GoodSioux County, North Dakota · 4 West 8 North Ft Yates · Structure no. 000000043160160
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected April 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 96 ft
- 3 main spans
- Daily traffic
- 20
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Irrsr County Hiway over Porcupine Creek is a prestressed concrete continuous box beam or girders - single or spread carrying Irrsr County Hiway over Porcupine Creek in Sioux County, North Dakota. It was built in 1991, so it is 34 years old, younger than the North Dakota average of 48.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 20 vehicles a day, projected to reach 10 by 2039. The structure is 96 ft (29.3 m) long and 31 ft wide. If it were closed, the detour would be 11.2 mi (18 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 9 Excellent | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| 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 Irrsr County Hiway over Porcupine Creek built?
It was built in 1991, making it 34 years old in 2025.
What condition is Irrsr County Hiway over Porcupine Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.
How much traffic does Irrsr County Hiway over Porcupine Creek carry?
About 20 vehicles per day (2019 count).
How long is Irrsr County Hiway over Porcupine Creek?
The structure is 96 ft (29.3 m) long with a longest span of 39 ft (11.9 m) and a deck 31 ft wide.
Who owns Irrsr County Hiway over Porcupine Creek?
It is owned by the County Highway Agency.