B20 300th ST over Spring Creek
GoodCerro Gordo County, Iowa · 0.5 MI E US65 · Structure no. 000000000106751
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected January 2024
- Type
- Slab
- Concrete Continuous
- Length
- 127 ft
- 3 main spans
- Daily traffic
- 589
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
B20 300th ST over Spring Creek is a concrete continuous slab carrying B20 300th ST over Spring Creek in Cerro Gordo County, Iowa. It was built in 2016, so it is 9 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 589 vehicles a day, roughly 10% of them trucks, projected to reach 589 by 2044. The structure is 127 ft (38.7 m) long and 33 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was B20 300th ST over Spring Creek built?
It was built in 2016, making it 9 years old in 2025.
What condition is B20 300th ST over Spring 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 B20 300th ST over Spring Creek carry?
About 589 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is B20 300th ST over Spring Creek?
The structure is 127 ft (38.7 m) long with a longest span of 51 ft (15.5 m) and a deck 33 ft wide.
Who owns B20 300th ST over Spring Creek?
It is owned by the County Highway Agency.