N15 over Big Blue River Tributary
FairSeward County, Nebraska · 7S Seward · Structure no. S015 05910
- Built
- 1947
- 78 years old, rebuilt 1988
- Condition
- Fair
- inspected January 2025
- Type
- Culvert
- Concrete
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 3,295
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
N15 over Big Blue River Tributary is a concrete culvert carrying N15 over Big Blue River Tributary in Seward County, Nebraska. It was built in 1947 and reconstructed in 1988, so it is 78 years old, older than the Nebraska average of 47.1 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 3,295 vehicles a day, roughly 10% of them trucks, projected to reach 4,778 by 2038. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 31.1 mi (50 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N15 over Big Blue River Tributary built?
It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1988.
What condition is N15 over Big Blue River Tributary 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 January 2025.
How much traffic does N15 over Big Blue River Tributary carry?
About 3,295 vehicles per day (2018 count), of which roughly 10% are trucks.
How long is N15 over Big Blue River Tributary?
The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).
Who owns N15 over Big Blue River Tributary?
It is owned by the State Highway Agency.