FM over Black Hawk Creek
FairGrundy County, Iowa · 088171901 · Structure no. 000000000165080
- Built
- 1900
- 125 years old, rebuilt 2005
- Condition
- Fair
- inspected April 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 31 ft
- 2 main spans
- Daily traffic
- 354
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Black Hawk Creek is a concrete continuous culvert carrying FM over Black Hawk Creek in Grundy County, Iowa. It was built in 1900 and reconstructed in 2005, so it is 125 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 354 vehicles a day, roughly 17% of them trucks, projected to reach 354 by 2044. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 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 Black Hawk Creek built?
It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2005.
What condition is FM over Black Hawk Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.
How much traffic does FM over Black Hawk Creek carry?
About 354 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is FM over Black Hawk Creek?
The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.3 m).
Who owns FM over Black Hawk Creek?
It is owned by the County Highway Agency.