Ia 14 over Black Hawk Creek
PoorPosted for loadGrundy County, Iowa · 1.5 Mi. S of S JCT SR D35 · Structure no. 000000000025841
- Built
- 1931
- 94 years old, rebuilt 1983
- Condition
- Poor
- inspected August 2024
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 179 ft
- 2 main spans
- Daily traffic
- 3,230
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 14 over Black Hawk Creek is a steel continuous girder and floorbeam system carrying Ia 14 over Black Hawk Creek in Grundy County, Iowa. It was built in 1931 and reconstructed in 1983, so it is 94 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 3,230 vehicles a day, roughly 17% of them trucks, projected to reach 3,230 by 2044. The structure is 179 ft (54.6 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 Ia 14 over Black Hawk Creek built?
It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1983.
What condition is Ia 14 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 August 2024.
How much traffic does Ia 14 over Black Hawk Creek carry?
About 3,230 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is Ia 14 over Black Hawk Creek?
The structure is 179 ft (54.6 m) long with a longest span of 46 ft (14 m) and a deck 33 ft wide.
Who owns Ia 14 over Black Hawk Creek?
It is owned by the State Highway Agency.