N29 over Interstate Canal
GoodSioux County, Nebraska · 8N Mitchell · Structure no. S029 02121
- Built
- 1973
- 52 years old, rebuilt 2015
- Condition
- Good
- inspected May 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 82 ft
- 3 main spans
- Daily traffic
- 240
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
N29 over Interstate Canal is a prestressed concrete tee beam carrying N29 over Interstate Canal in Sioux County, Nebraska. It was built in 1973 and reconstructed in 2015, so it is 52 years old, older than the Nebraska average of 47.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 240 vehicles a day, roughly 8% of them trucks, projected to reach 324 by 2038. The structure is 82 ft (25 m) long and 34 ft wide. If it were closed, the detour would be 217.5 mi (350 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 | 9 Excellent | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N29 over Interstate Canal built?
It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2015.
What condition is N29 over Interstate Canal 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 N29 over Interstate Canal carry?
About 240 vehicles per day (2018 count), of which roughly 8% are trucks.
How long is N29 over Interstate Canal?
The structure is 82 ft (25 m) long with a longest span of 31 ft (9.4 m) and a deck 34 ft wide.
Who owns N29 over Interstate Canal?
It is owned by the State Highway Agency.