FM - 660th over Jim Creek
PoorPosted for loadCass County, Iowa · 076351902 · Structure no. 000000000099350
- Built
- 1956
- 69 years old
- Condition
- Poor
- inspected March 2024
- Type
- Channel Beam
- Concrete
- Length
- 56 ft
- 1 main span
- Daily traffic
- 34
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM - 660th over Jim Creek is a concrete channel beam carrying FM - 660th over Jim Creek in Cass County, Iowa. It was built in 1956, so it is 69 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 34 vehicles a day, projected to reach 34 by 2044. The structure is 56 ft (17.1 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 - 660th over Jim Creek built?
It was built in 1956, making it 69 years old in 2025.
What condition is FM - 660th over Jim 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 March 2024.
How much traffic does FM - 660th over Jim Creek carry?
About 34 vehicles per day (2022 count).
How long is FM - 660th over Jim Creek?
The structure is 56 ft (17.1 m) long with a longest span of 55 ft (16.8 m) and a deck 20 ft wide.
Who owns FM - 660th over Jim Creek?
It is owned by the County Highway Agency.