320th Ave over Shell Creek
GoodBoone County, Nebraska · 10.5E 4.2S Petersburg · Structure no. C000614520
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected December 2022
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 46 ft
- 1 main span
- Daily traffic
- 10
- 2003 count
- Owner
- County
- County Highway Agency
About this bridge
320th Ave over Shell Creek is a prestressed concrete tee beam carrying 320th Ave over Shell Creek in Boone County, Nebraska. It was built in 1998, so it is 27 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 10 vehicles a day, projected to reach 17 by 2041. The structure is 46 ft (14 m) long and 25 ft wide. If it were closed, the detour would be 31.1 mi (50 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 320th Ave over Shell Creek built?
It was built in 1998, making it 27 years old in 2025.
What condition is 320th Ave over Shell 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 December 2022.
How much traffic does 320th Ave over Shell Creek carry?
About 10 vehicles per day (2003 count).
How long is 320th Ave over Shell Creek?
The structure is 46 ft (14 m) long with a longest span of 44 ft (13.4 m) and a deck 25 ft wide.
Who owns 320th Ave over Shell Creek?
It is owned by the County Highway Agency.