N7 over Calamus River
GoodBrown County, Nebraska · 26S Ainsworth · Structure no. S007 01774
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected March 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 93 ft
- 3 main spans
- Daily traffic
- 525
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
N7 over Calamus River is a prestressed concrete tee beam carrying N7 over Calamus River in Brown County, Nebraska. It was built in 1991, so it is 34 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 525 vehicles a day, roughly 13% of them trucks, projected to reach 683 by 2038. The structure is 93 ft (28.3 m) long and 38 ft wide. If it were closed, the detour would be 192.6 mi (310 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 | 7 Good | Some minor problems. |
| 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 N7 over Calamus River built?
It was built in 1991, making it 34 years old in 2025.
What condition is N7 over Calamus River 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 March 2023.
How much traffic does N7 over Calamus River carry?
About 525 vehicles per day (2018 count), of which roughly 13% are trucks.
How long is N7 over Calamus River?
The structure is 93 ft (28.3 m) long with a longest span of 31 ft (9.4 m) and a deck 38 ft wide.
Who owns N7 over Calamus River?
It is owned by the State Highway Agency.