172nd ST over Stream
PoorPosted for loadClayton County, Iowa · 094050903 · Structure no. 000000000120480
- Built
- 1916
- 109 years old
- Condition
- Poor
- inspected November 2023
- Type
- Truss - Thru
- Steel
- Length
- 40 ft
- 1 main span
- Daily traffic
- 16
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
172nd ST over Stream is a steel truss - thru carrying 172nd ST over Stream in Clayton County, Iowa. It was built in 1916, so it is 109 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 16 vehicles a day, projected to reach 16 by 2043. The structure is 40 ft (12.2 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 172nd ST over Stream built?
It was built in 1916, making it 109 years old in 2025.
What condition is 172nd ST over Stream 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 November 2023.
How much traffic does 172nd ST over Stream carry?
About 16 vehicles per day (2022 count).
How long is 172nd ST over Stream?
The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 16 ft wide.
Who owns 172nd ST over Stream?
It is owned by the County Highway Agency.