SB I-35 over SR C-13
FairFranklin County, Iowa · At Jct. SR C-13 · Structure no. 000000000602510
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 138 ft
- 3 main spans
- Daily traffic
- 8,350
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
SB I-35 over SR C-13 is a prestressed concrete stringer/multi-beam or girder carrying SB I-35 over SR C-13 in Franklin 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 8,350 vehicles a day, roughly 30% of them trucks, projected to reach 8,350 by 2044. The structure is 138 ft (42.1 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SB I-35 over SR C-13 built?
It was built in 1972, making it 53 years old in 2025.
What condition is SB I-35 over SR C-13 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 October 2024.
How much traffic does SB I-35 over SR C-13 carry?
About 8,350 vehicles per day (2022 count), of which roughly 30% are trucks.
How long is SB I-35 over SR C-13?
The structure is 138 ft (42.1 m) long with a longest span of 65 ft (19.8 m) and a deck 43 ft wide.
Who owns SB I-35 over SR C-13?
It is owned by the State Highway Agency.