120th ST over Creek
PoorPosted for loadAudubon County, Iowa · 081361501 · Structure no. 000000000069780
- Built
- 1941
- 84 years old, rebuilt 1996
- Condition
- Poor
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 24 ft
- 1 main span
- Daily traffic
- 35
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
120th ST over Creek is a wood or timber stringer/multi-beam or girder carrying 120th ST over Creek in Audubon County, Iowa. It was built in 1941 and reconstructed in 1996, so it is 84 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 35 vehicles a day, roughly 17% of them trucks, projected to reach 35 by 2042. The structure is 24 ft (7.3 m) long and 17 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 120th ST over Creek built?
It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1996.
What condition is 120th ST over 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 2023.
How much traffic does 120th ST over Creek carry?
About 35 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is 120th ST over Creek?
The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 17 ft wide.
Who owns 120th ST over Creek?
It is owned by the County Highway Agency.