SR C-25 over I-35
FairFranklin County, Iowa · 4.5 Miles N of JCT Ia 3 · Structure no. 000000000602450
- Built
- 1973
- 52 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 336 ft
- 4 main spans
- Daily traffic
- 864
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
SR C-25 over I-35 is a steel continuous stringer/multi-beam or girder carrying SR C-25 over I-35 in Franklin County, Iowa. It was built in 1973, so it is 52 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 864 vehicles a day, roughly 13% of them trucks, projected to reach 864 by 2044. The structure is 336 ft (102.4 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR C-25 over I-35 built?
It was built in 1973, making it 52 years old in 2025.
What condition is SR C-25 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 SR C-25 over I-35 carry?
About 864 vehicles per day (2022 count), of which roughly 13% are trucks.
How long is SR C-25 over I-35?
The structure is 336 ft (102.4 m) long with a longest span of 107 ft (32.6 m) and a deck 35 ft wide.
Who owns SR C-25 over I-35?
It is owned by the State Highway Agency.