Ia 404 NB over Floyd River
FairPlymouth County, Iowa · 0.4 Mi. N of Jct. Ia 3 · Structure no. 000000000039631
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 296 ft
- 4 main spans
- Daily traffic
- 2,400
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 404 NB over Floyd River is a prestressed concrete stringer/multi-beam or girder carrying Ia 404 NB over Floyd River in Plymouth County, Iowa. It was built in 1972, so it is 53 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 2,400 vehicles a day, roughly 7% of them trucks, projected to reach 2,400 by 2044. The structure is 296 ft (90.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Ia 404 NB over Floyd River built?
It was built in 1972, making it 53 years old in 2025.
What condition is Ia 404 NB over Floyd River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2024.
How much traffic does Ia 404 NB over Floyd River carry?
About 2,400 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is Ia 404 NB over Floyd River?
The structure is 296 ft (90.2 m) long with a longest span of 77 ft (23.5 m) and a deck 43 ft wide.
Who owns Ia 404 NB over Floyd River?
It is owned by the State Highway Agency.