250th ST over Allen Creek
PoorPosted for loadHarrison County, Iowa · 079442301 · Structure no. 000000000178310
- Built
- 1965
- 60 years old
- Condition
- Poor
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 60 ft
- 1 main span
- Daily traffic
- 11
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
250th ST over Allen Creek is a steel stringer/multi-beam or girder carrying 250th ST over Allen Creek in Harrison County, Iowa. It was built in 1965, so it is 60 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 11 vehicles a day, projected to reach 11 by 2044. The structure is 60 ft (18.3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 250th ST over Allen Creek built?
It was built in 1965, making it 60 years old in 2025.
What condition is 250th ST over Allen Creek 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 January 2024.
How much traffic does 250th ST over Allen Creek carry?
About 11 vehicles per day (2022 count).
How long is 250th ST over Allen Creek?
The structure is 60 ft (18.3 m) long with a longest span of 59 ft (18 m) and a deck 24 ft wide.
Who owns 250th ST over Allen Creek?
It is owned by the County Highway Agency.