Bighorn RD over Hewett Creek
PoorPosted for loadClayton County, Iowa · 092062204 · Structure no. 000000000119290
- Built
- 1920
- 105 years old
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 42 ft
- 1 main span
- Daily traffic
- 51
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Bighorn RD over Hewett Creek is a steel stringer/multi-beam or girder carrying Bighorn RD over Hewett Creek in Clayton County, Iowa. It was built in 1920, so it is 105 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 load restriction.
It carries about 51 vehicles a day, projected to reach 51 by 2044. The structure is 42 ft (12.8 m) long and 18 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 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 Bighorn RD over Hewett Creek built?
It was built in 1920, making it 105 years old in 2025.
What condition is Bighorn RD over Hewett 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 October 2024.
How much traffic does Bighorn RD over Hewett Creek carry?
About 51 vehicles per day (2022 count).
How long is Bighorn RD over Hewett Creek?
The structure is 42 ft (12.8 m) long with a longest span of 41 ft (12.5 m) and a deck 18 ft wide.
Who owns Bighorn RD over Hewett Creek?
It is owned by the County Highway Agency.