Interstate 29 over County Drain
GoodRichland County, North Dakota · 8 South of Nd 46 · Structure no. 0029040033
- Built
- 1973
- 52 years old
- Condition
- Good
- inspected May 2023
- Type
- Culvert
- Concrete
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 5,600
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 29 over County Drain is a concrete culvert carrying Interstate 29 over County Drain in Richland County, North Dakota. It was built in 1973, so it is 52 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 5,600 vehicles a day, roughly 21% of them trucks, projected to reach 5,600 by 2039. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 29 over County Drain built?
It was built in 1973, making it 52 years old in 2025.
What condition is Interstate 29 over County Drain 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 2023.
How much traffic does Interstate 29 over County Drain carry?
About 5,600 vehicles per day (2019 count), of which roughly 21% are trucks.
How long is Interstate 29 over County Drain?
The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).
Who owns Interstate 29 over County Drain?
It is owned by the State Highway Agency.