120th ST over Big Bear Creek
FairJones County, Iowa · 084030901 · Structure no. 000000000207431
- Built
- 1991
- 34 years old
- Condition
- Fair
- inspected January 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 34 ft
- 1 main span
- Daily traffic
- 21
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
120th ST over Big Bear Creek is a prestressed concrete tee beam carrying 120th ST over Big Bear Creek in Jones County, Iowa. It was built in 1991, so it is 34 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 21 vehicles a day, projected to reach 21 by 2044. The structure is 34 ft (10.4 m) long and 24 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 120th ST over Big Bear Creek built?
It was built in 1991, making it 34 years old in 2025.
What condition is 120th ST over Big Bear Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.
How much traffic does 120th ST over Big Bear Creek carry?
About 21 vehicles per day (2022 count).
How long is 120th ST over Big Bear Creek?
The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 24 ft wide.
Who owns 120th ST over Big Bear Creek?
It is owned by the County Highway Agency.