Local over Knapp Creek
GoodBenton County, Iowa · 082092502 · Structure no. 000000000070131
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected March 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 59
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Local over Knapp Creek is a concrete continuous culvert carrying Local over Knapp Creek in Benton County, Iowa. It was built in 1989, so it is 36 years old, younger than the Iowa average of 45.5 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 59 vehicles a day, projected to reach 59 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.9 mi (3 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Local over Knapp Creek built?
It was built in 1989, making it 36 years old in 2025.
What condition is Local over Knapp 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 March 2023.
How much traffic does Local over Knapp Creek carry?
About 59 vehicles per day (2022 count).
How long is Local over Knapp Creek?
The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).
Who owns Local over Knapp Creek?
It is owned by the County Highway Agency.