Interstate 29 over Sheyenne River
FairCass County, North Dakota · 2 North of Harwood · Structure no. 0029074490 R
- Built
- 1968
- 57 years old, rebuilt 1978
- Condition
- Fair
- inspected July 2023
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 200 ft
- 3 main spans
- Daily traffic
- 4,850
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 29 over Sheyenne River is a prestressed concrete continuous box beam or girders - single or spread carrying Interstate 29 over Sheyenne River in Cass County, North Dakota. It was built in 1968 and reconstructed in 1978, so it is 57 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 4,850 vehicles a day, roughly 18% of them trucks, projected to reach 4,850 by 2039. The structure is 200 ft (61 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Interstate 29 over Sheyenne River built?
It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1978.
What condition is Interstate 29 over Sheyenne River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.
How much traffic does Interstate 29 over Sheyenne River carry?
About 4,850 vehicles per day (2019 count), of which roughly 18% are trucks.
How long is Interstate 29 over Sheyenne River?
The structure is 200 ft (61 m) long with a longest span of 67 ft (20.4 m) and a deck 41 ft wide.
Who owns Interstate 29 over Sheyenne River?
It is owned by the State Highway Agency.