FM over Br Rock Ck
PoorBenton County, Iowa · 086110502 · Structure no. 000000000073285
- Built
- 1973
- 52 years old
- Condition
- Poor
- inspected April 2023
- Type
- Channel Beam
- Concrete
- Length
- 24 ft
- 1 main span
- Daily traffic
- 90
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Br Rock Ck is a concrete channel beam carrying FM over Br Rock Ck in Benton County, Iowa. It was built in 1973, so it is 52 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 90 vehicles a day, roughly 10% of them trucks, projected to reach 90 by 2043. The structure is 24 ft (7.3 m) long and 32 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 FM over Br Rock Ck built?
It was built in 1973, making it 52 years old in 2025.
What condition is FM over Br Rock Ck 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 FM over Br Rock Ck carry?
About 90 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is FM over Br Rock Ck?
The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 32 ft wide.
Who owns FM over Br Rock Ck?
It is owned by the County Highway Agency.