FM 500th ST over Dd #121
GoodKossuth County, Iowa · 100301601 · Structure no. 000000000217761
- Built
- 1998
- 27 years old
- Condition
- Good
- inspected May 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 330
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM 500th ST over Dd #121 is a concrete continuous culvert carrying FM 500th ST over Dd #121 in Kossuth County, Iowa. It was built in 1998, so it is 27 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 330 vehicles a day, roughly 11% of them trucks, projected to reach 330 by 2043. The structure is 25 ft (7.6 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM 500th ST over Dd #121 built?
It was built in 1998, making it 27 years old in 2025.
What condition is FM 500th ST over Dd #121 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 May 2023.
How much traffic does FM 500th ST over Dd #121 carry?
About 330 vehicles per day (2022 count), of which roughly 11% are trucks.
How long is FM 500th ST over Dd #121?
The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 34 ft wide.
Who owns FM 500th ST over Dd #121?
It is owned by the County Highway Agency.