I 35 SB over 13th ST
FairStory County, Iowa · 1.9 Miles N of JCT US 30 · Structure no. 000000000049280
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 162 ft
- 3 main spans
- Daily traffic
- 13,200
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I 35 SB over 13th ST is a prestressed concrete stringer/multi-beam or girder carrying I 35 SB over 13th ST in Story County, Iowa. It was built in 1966, so it is 59 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 5 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 13,200 vehicles a day, roughly 26% of them trucks, projected to reach 13,200 by 2043. The structure is 162 ft (49.4 m) long and 42 ft wide.
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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 35 SB over 13th ST built?
It was built in 1966, making it 59 years old in 2025.
What condition is I 35 SB over 13th ST 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 November 2023.
How much traffic does I 35 SB over 13th ST carry?
About 13,200 vehicles per day (2022 count), of which roughly 26% are trucks.
How long is I 35 SB over 13th ST?
The structure is 162 ft (49.4 m) long with a longest span of 72 ft (21.9 m) and a deck 42 ft wide.
Who owns I 35 SB over 13th ST?
It is owned by the State Highway Agency.