150th ST over Floyd River
PoorPosted for loadPlymouth County, Iowa · 093453403 · Structure no. 000000000276840
- Built
- 1954
- 71 years old
- Condition
- Poor
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 175 ft
- 3 main spans
- Daily traffic
- 131
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
150th ST over Floyd River is a steel continuous stringer/multi-beam or girder carrying 150th ST over Floyd River in Plymouth County, Iowa. It was built in 1954, so it is 71 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 131 vehicles a day, roughly 38% of them trucks, projected to reach 131 by 2044. The structure is 175 ft (53.3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 150th ST over Floyd River built?
It was built in 1954, making it 71 years old in 2025.
What condition is 150th ST over Floyd 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 June 2023.
How much traffic does 150th ST over Floyd River carry?
About 131 vehicles per day (2022 count), of which roughly 38% are trucks.
How long is 150th ST over Floyd River?
The structure is 175 ft (53.3 m) long with a longest span of 68 ft (20.7 m) and a deck 22 ft wide.
Who owns 150th ST over Floyd River?
It is owned by the County Highway Agency.