15th ST SW over Knife River
GoodDunn County, North Dakota · 3 East 1 South Manning · Structure no. 000000013119421
- Built
- 2019
- 6 years old
- Condition
- Good
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 80 ft
- 1 main span
- Daily traffic
- 72
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
15th ST SW over Knife River is a steel stringer/multi-beam or girder carrying 15th ST SW over Knife River in Dunn County, North Dakota. It was built in 2019, so it is 6 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 72 vehicles a day, projected to reach 97 by 2042. The structure is 80 ft (24.4 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 15th ST SW over Knife River built?
It was built in 2019, making it 6 years old in 2025.
What condition is 15th ST SW over Knife River 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 June 2024.
How much traffic does 15th ST SW over Knife River carry?
About 72 vehicles per day (2022 count).
How long is 15th ST SW over Knife River?
The structure is 80 ft (24.4 m) long with a longest span of 79 ft (24.1 m) and a deck 25 ft wide.
Who owns 15th ST SW over Knife River?
It is owned by the County Highway Agency.