Nd Highway 49 over Knife River
GoodMercer County, North Dakota · 1 South of Beulah · Structure no. 0049101247
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 288 ft
- 3 main spans
- Daily traffic
- 3,400
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Nd Highway 49 over Knife River is a prestressed concrete stringer/multi-beam or girder carrying Nd Highway 49 over Knife River in Mercer County, North Dakota. It was built in 2016, so it is 9 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 3,400 vehicles a day, roughly 7% of them trucks, projected to reach 3,300 by 2039. The structure is 288 ft (87.8 m) long and 53 ft wide. If it were closed, the detour would be 47.8 mi (77 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nd Highway 49 over Knife River built?
It was built in 2016, making it 9 years old in 2025.
What condition is Nd Highway 49 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 September 2023.
How much traffic does Nd Highway 49 over Knife River carry?
About 3,400 vehicles per day (2019 count), of which roughly 7% are trucks.
How long is Nd Highway 49 over Knife River?
The structure is 288 ft (87.8 m) long with a longest span of 96 ft (29.4 m) and a deck 53 ft wide.
Who owns Nd Highway 49 over Knife River?
It is owned by the State Highway Agency.