Nd Highway 18 over Tongue River
GoodPembina County, North Dakota · 3 North of Nd 5 · Structure no. 0018231872
- Built
- 1972
- 53 years old
- Condition
- Good
- inspected May 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 85 ft
- 2 main spans
- Daily traffic
- 590
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Nd Highway 18 over Tongue River is a prestressed concrete continuous box beam or girders - single or spread carrying Nd Highway 18 over Tongue River in Pembina County, North Dakota. It was built in 1972, so it is 53 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 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 590 vehicles a day, roughly 15% of them trucks, projected to reach 590 by 2039. The structure is 85 ft (25.9 m) long and 41 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 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 Nd Highway 18 over Tongue River built?
It was built in 1972, making it 53 years old in 2025.
What condition is Nd Highway 18 over Tongue 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 May 2024.
How much traffic does Nd Highway 18 over Tongue River carry?
About 590 vehicles per day (2019 count), of which roughly 15% are trucks.
How long is Nd Highway 18 over Tongue River?
The structure is 85 ft (25.9 m) long with a longest span of 41 ft (12.5 m) and a deck 41 ft wide.
Who owns Nd Highway 18 over Tongue River?
It is owned by the State Highway Agency.