N21 over Ash Creek
GoodCuster County, Nebraska · 9NE Oconto · Structure no. S021 06165
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 82 ft
- 1 main span
- Daily traffic
- 830
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
N21 over Ash Creek is a steel stringer/multi-beam or girder carrying N21 over Ash Creek in Custer County, Nebraska. It was built in 2003, so it is 22 years old, younger 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 830 vehicles a day, roughly 23% of them trucks, projected to reach 1,204 by 2038. The structure is 82 ft (25.1 m) long and 38 ft wide. If it were closed, the detour would be 62.1 mi (100 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 | 8 Very Good | 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 N21 over Ash Creek built?
It was built in 2003, making it 22 years old in 2025.
What condition is N21 over Ash Creek 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 November 2024.
How much traffic does N21 over Ash Creek carry?
About 830 vehicles per day (2018 count), of which roughly 23% are trucks.
How long is N21 over Ash Creek?
The structure is 82 ft (25.1 m) long with a longest span of 80 ft (24.4 m) and a deck 38 ft wide.
Who owns N21 over Ash Creek?
It is owned by the State Highway Agency.