T47 over Shell Rock River
PoorPosted for loadButler County, Iowa · 093162702 · Structure no. 000000000089500
- Built
- 1963
- 62 years old, rebuilt 1982
- Condition
- Poor
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 448 ft
- 5 main spans
- Daily traffic
- 285
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
T47 over Shell Rock River is a steel continuous stringer/multi-beam or girder carrying T47 over Shell Rock River in Butler County, Iowa. It was built in 1963 and reconstructed in 1982, so it is 62 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. Its operating status is: posted for load restriction.
It carries about 285 vehicles a day, roughly 15% of them trucks, projected to reach 285 by 2044. The structure is 448 ft (136.6 m) long and 26 ft wide. If it were closed, the detour would be 13 mi (21 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 T47 over Shell Rock River built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1982.
What condition is T47 over Shell Rock River 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 2024.
How much traffic does T47 over Shell Rock River carry?
About 285 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is T47 over Shell Rock River?
The structure is 448 ft (136.6 m) long with a longest span of 98 ft (29.9 m) and a deck 26 ft wide.
Who owns T47 over Shell Rock River?
It is owned by the County Highway Agency.