US 61 over Iowa River
FairLouisa County, Iowa · 4.2 Mi. S of Jct. Iowa 92 · Structure no. 000000000034011
- Built
- 1980
- 45 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 1,040 ft
- 8 main spans
- Daily traffic
- 4,950
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 61 over Iowa River is a steel continuous stringer/multi-beam or girder carrying US 61 over Iowa River in Louisa County, Iowa. It was built in 1980, so it is 45 years old, younger 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 4,950 vehicles a day, roughly 17% of them trucks, projected to reach 4,950 by 2044. The structure is 1,040 ft (317 m) long and 47 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 7 Good | Some minor problems. |
| 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 US 61 over Iowa River built?
It was built in 1980, making it 45 years old in 2025.
What condition is US 61 over Iowa 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 61 over Iowa River carry?
About 4,950 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is US 61 over Iowa River?
The structure is 1,040 ft (317 m) long with a longest span of 137 ft (41.8 m) and a deck 47 ft wide.
Who owns US 61 over Iowa River?
It is owned by the State Highway Agency.