Local over Black Hawk Creek
PoorPosted for loadGrundy County, Iowa · 087152102 · Structure no. 000000000163990
- Built
- 1946
- 79 years old
- Condition
- Poor
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 185 ft
- 3 main spans
- Daily traffic
- 59
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Local over Black Hawk Creek is a steel continuous stringer/multi-beam or girder carrying Local over Black Hawk Creek in Grundy County, Iowa. It was built in 1946, so it is 79 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 59 vehicles a day, projected to reach 59 by 2044. The structure is 185 ft (56.4 m) long and 24 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Local over Black Hawk Creek built?
It was built in 1946, making it 79 years old in 2025.
What condition is Local 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 April 2024.
How much traffic does Local over Black Hawk Creek carry?
About 59 vehicles per day (2022 count).
How long is Local over Black Hawk Creek?
The structure is 185 ft (56.4 m) long with a longest span of 70 ft (21.3 m) and a deck 24 ft wide.
Who owns Local over Black Hawk Creek?
It is owned by the County Highway Agency.