FM over Patterson Creek
PoorPosted for loadAllamakee County, Iowa · 099062905 · Structure no. 000000000062950
- Built
- 1938
- 87 years old
- Condition
- Poor
- inspected April 2024
- Type
- Truss - Thru
- Steel
- Length
- 73 ft
- 1 main span
- Daily traffic
- 69
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Patterson Creek is a steel truss - thru carrying FM over Patterson Creek in Allamakee County, Iowa. It was built in 1938, so it is 87 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 69 vehicles a day, projected to reach 69 by 2044. The structure is 73 ft (22.3 m) long and 19 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 FM over Patterson Creek built?
It was built in 1938, making it 87 years old in 2025.
What condition is FM over Patterson 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 April 2024.
How much traffic does FM over Patterson Creek carry?
About 69 vehicles per day (2022 count).
How long is FM over Patterson Creek?
The structure is 73 ft (22.3 m) long with a longest span of 70 ft (21.3 m) and a deck 19 ft wide.
Who owns FM over Patterson Creek?
It is owned by the County Highway Agency.