Main ST over Small Natural Stream
PoorWinneshiek County, Iowa · 000000000 · Structure no. 000000000052770
- Built
- 1940
- 85 years old
- Condition
- Poor
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 28 ft
- 1 main span
- Daily traffic
- 649
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Main ST over Small Natural Stream is a steel stringer/multi-beam or girder carrying Main ST over Small Natural Stream in Winneshiek County, Iowa. It was built in 1940, so it is 85 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.
It carries about 649 vehicles a day, roughly 21% of them trucks, projected to reach 649 by 2043. The structure is 28 ft (8.5 m) long and 28 ft wide. If it were closed, the detour would be 16.8 mi (27 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 | 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 Main ST over Small Natural Stream built?
It was built in 1940, making it 85 years old in 2025.
What condition is Main ST over Small Natural 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 April 2023.
How much traffic does Main ST over Small Natural Stream carry?
About 649 vehicles per day (2022 count), of which roughly 21% are trucks.
How long is Main ST over Small Natural Stream?
The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 28 ft wide.
Who owns Main ST over Small Natural Stream?
It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.