270th ST over Drainage Ditch
PoorPosted for loadDickinson County, Iowa · 097350201 · Structure no. 000000000117160
- Built
- 1926
- 99 years old, rebuilt 1947
- Condition
- Poor
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 36 ft
- 1 main span
- Daily traffic
- 5
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
270th ST over Drainage Ditch is a steel stringer/multi-beam or girder carrying 270th ST over Drainage Ditch in Dickinson County, Iowa. It was built in 1926 and reconstructed in 1947, so it is 99 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 other load-capacity restriction.
It carries about 5 vehicles a day, projected to reach 5 by 2043. The structure is 36 ft (11 m) long and 24 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 270th ST over Drainage Ditch built?
It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1947.
What condition is 270th ST over Drainage Ditch 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 270th ST over Drainage Ditch carry?
About 5 vehicles per day (2021 count).
How long is 270th ST over Drainage Ditch?
The structure is 36 ft (11 m) long with a longest span of 32 ft (9.8 m) and a deck 24 ft wide.
Who owns 270th ST over Drainage Ditch?
It is owned by the County Highway Agency.