R37 Robin ST over I-35
GoodClarke County, Iowa · 3.1 Mi. S of SR G76 · Structure no. 000000000020260
- Built
- 1957
- 68 years old
- Condition
- Good
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 201 ft
- 4 main spans
- Daily traffic
- 34
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
R37 Robin ST over I-35 is a prestressed concrete stringer/multi-beam or girder carrying R37 Robin ST over I-35 in Clarke County, Iowa. It was built in 1957, so it is 68 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 34 vehicles a day, projected to reach 34 by 2044. The structure is 201 ft (61.3 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 R37 Robin ST over I-35 built?
It was built in 1957, making it 68 years old in 2025.
What condition is R37 Robin ST over I-35 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.
How much traffic does R37 Robin ST over I-35 carry?
About 34 vehicles per day (2022 count).
How long is R37 Robin ST over I-35?
The structure is 201 ft (61.3 m) long with a longest span of 56 ft (17.1 m) and a deck 28 ft wide.
Who owns R37 Robin ST over I-35?
It is owned by the State Highway Agency.