K-35 over I-29
FairWoodbury County, Iowa · 4.2 Mi. N of Jct. Ia 141 · Structure no. 000000000053640
- Built
- 1959
- 66 years old
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 240 ft
- 4 main spans
- Daily traffic
- 90
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
K-35 over I-29 is a prestressed concrete stringer/multi-beam or girder carrying K-35 over I-29 in Woodbury County, Iowa. It was built in 1959, so it is 66 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 90 vehicles a day, projected to reach 90 by 2044. The structure is 240 ft (73.2 m) long and 29 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 K-35 over I-29 built?
It was built in 1959, making it 66 years old in 2025.
What condition is K-35 over I-29 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 December 2024.
How much traffic does K-35 over I-29 carry?
About 90 vehicles per day (2022 count).
How long is K-35 over I-29?
The structure is 240 ft (73.2 m) long with a longest span of 71 ft (21.6 m) and a deck 29 ft wide.
Who owns K-35 over I-29?
It is owned by the State Highway Agency.