300 ST over Small
PoorButler County, Iowa · 090151601 · Structure no. 000000000086645
- Built
- 1979
- 46 years old
- Condition
- Poor
- inspected April 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 26 ft
- 1 main span
- Daily traffic
- 73
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
300 ST over Small is a prestressed concrete tee beam carrying 300 ST over Small in Butler County, Iowa. It was built in 1979, so it is 46 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 73 vehicles a day, projected to reach 73 by 2043. The structure is 26 ft (7.9 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 300 ST over Small built?
It was built in 1979, making it 46 years old in 2025.
What condition is 300 ST over Small in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.
How much traffic does 300 ST over Small carry?
About 73 vehicles per day (2022 count).
How long is 300 ST over Small?
The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 24 ft wide.
Who owns 300 ST over Small?
It is owned by the County Highway Agency.