410 140th ST over Boone River
PoorPosted for loadHancock County, Iowa · 094261501 · Structure no. 000000000172940
- Built
- 1927
- 98 years old
- Condition
- Poor
- inspected March 2024
- Type
- Girder and Floorbeam System
- Concrete
- Length
- 51 ft
- 2 main spans
- Daily traffic
- 21
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
410 140th ST over Boone River is a concrete girder and floorbeam system carrying 410 140th ST over Boone River in Hancock County, Iowa. It was built in 1927, so it is 98 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 3 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 21 vehicles a day, projected to reach 21 by 2044. The structure is 51 ft (15.5 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 410 140th ST over Boone River built?
It was built in 1927, making it 98 years old in 2025.
What condition is 410 140th ST over Boone 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 March 2024.
How much traffic does 410 140th ST over Boone River carry?
About 21 vehicles per day (2021 count).
How long is 410 140th ST over Boone River?
The structure is 51 ft (15.5 m) long with a longest span of 25 ft (7.6 m) and a deck 22 ft wide.
Who owns 410 140th ST over Boone River?
It is owned by the County Highway Agency.