330th over Blair Creek
GoodCerro Gordo County, Iowa · 097200901 · Structure no. 000000000106670
- Built
- 1966
- 59 years old
- Condition
- Good
- inspected January 2024
- Type
- Slab
- Concrete Continuous
- Length
- 75 ft
- 3 main spans
- Daily traffic
- 236
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
330th over Blair Creek is a concrete continuous slab carrying 330th over Blair Creek in Cerro Gordo County, Iowa. It was built in 1966, so it is 59 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 236 vehicles a day, roughly 19% of them trucks, projected to reach 236 by 2044. The structure is 75 ft (22.9 m) long and 30 ft wide. If it were closed, the detour would be 14.9 mi (24 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 330th over Blair Creek built?
It was built in 1966, making it 59 years old in 2025.
What condition is 330th over Blair Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.
How much traffic does 330th over Blair Creek carry?
About 236 vehicles per day (2022 count), of which roughly 19% are trucks.
How long is 330th over Blair Creek?
The structure is 75 ft (22.9 m) long with a longest span of 29 ft (8.8 m) and a deck 30 ft wide.
Who owns 330th over Blair Creek?
It is owned by the County Highway Agency.