US 18 over Cedar River
FairFloyd County, Iowa · 0.1 Mi. E of Ia 14 · Structure no. 000000000024970
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 334 ft
- 3 main spans
- Daily traffic
- 10,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 18 over Cedar River is a steel continuous stringer/multi-beam or girder carrying US 18 over Cedar River in Floyd County, Iowa. It was built in 1967, so it is 58 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 10,500 vehicles a day, roughly 4% of them trucks, projected to reach 10,500 by 2044. The structure is 334 ft (101.8 m) long and 61 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 18 over Cedar River built?
It was built in 1967, making it 58 years old in 2025.
What condition is US 18 over Cedar 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 August 2024.
How much traffic does US 18 over Cedar River carry?
About 10,500 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is US 18 over Cedar River?
The structure is 334 ft (101.8 m) long with a longest span of 129 ft (39.3 m) and a deck 61 ft wide.
Who owns US 18 over Cedar River?
It is owned by the State Highway Agency.