Nd Highway 18 over Rush River
GoodCass County, North Dakota · 1 North of Amenia · Structure no. 0018083586
- Built
- 1957
- 68 years old
- Condition
- Good
- inspected July 2023
- Type
- Slab
- Concrete Continuous
- Length
- 60 ft
- 3 main spans
- Daily traffic
- 1,000
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Nd Highway 18 over Rush River is a concrete continuous slab carrying Nd Highway 18 over Rush River in Cass County, North Dakota. It was built in 1957, so it is 68 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 1,000 vehicles a day, roughly 12% of them trucks, projected to reach 837 by 2039. The structure is 60 ft (18.3 m) long and 35 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nd Highway 18 over Rush River built?
It was built in 1957, making it 68 years old in 2025.
What condition is Nd Highway 18 over Rush 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 July 2023.
How much traffic does Nd Highway 18 over Rush River carry?
About 1,000 vehicles per day (2019 count), of which roughly 12% are trucks.
How long is Nd Highway 18 over Rush River?
The structure is 60 ft (18.3 m) long with a longest span of 22 ft (6.7 m) and a deck 35 ft wide.
Who owns Nd Highway 18 over Rush River?
It is owned by the State Highway Agency.