FM over Black Hawk Creek
PoorGrundy County, Iowa · 087152002 · Structure no. 000000000163981
- Built
- 1979
- 46 years old
- Condition
- Poor
- inspected March 2024
- Type
- Slab
- Concrete Continuous
- Length
- 226 ft
- 5 main spans
- Daily traffic
- 687
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Black Hawk Creek is a concrete continuous slab carrying FM over Black Hawk Creek in Grundy County, Iowa. It was built in 1979, so it is 46 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 687 vehicles a day, projected to reach 687 by 2044. The structure is 226 ft (68.9 m) long and 32 ft wide. 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 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over Black Hawk Creek built?
It was built in 1979, making it 46 years old in 2025.
What condition is FM over Black Hawk 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 over Black Hawk Creek carry?
About 687 vehicles per day (2022 count).
How long is FM over Black Hawk Creek?
The structure is 226 ft (68.9 m) long with a longest span of 49 ft (14.9 m) and a deck 32 ft wide.
Who owns FM over Black Hawk Creek?
It is owned by the County Highway Agency.