Ia 3 over I-35
FairFranklin County, Iowa · At Jct. I-35 · Structure no. 000000000602475
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 350 ft
- 4 main spans
- Daily traffic
- 2,400
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 3 over I-35 is a steel continuous stringer/multi-beam or girder carrying Ia 3 over I-35 in Franklin County, Iowa. It was built in 1974, so it is 51 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 19% of them trucks, projected to reach 2,400 by 2044. The structure is 350 ft (106.7 m) long and 63 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 3 over I-35 built?
It was built in 1974, making it 51 years old in 2025.
What condition is Ia 3 over I-35 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 September 2024.
How much traffic does Ia 3 over I-35 carry?
About 2,400 vehicles per day (2022 count), of which roughly 19% are trucks.
How long is Ia 3 over I-35?
The structure is 350 ft (106.7 m) long with a longest span of 112 ft (34.1 m) and a deck 63 ft wide.
Who owns Ia 3 over I-35?
It is owned by the State Highway Agency.