B64 Agate RD over Stream
GoodClayton County, Iowa · 0.5 Miles E Bugle RD · Structure no. 000000000120781
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 110 ft
- 1 main span
- Daily traffic
- 295
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
B64 Agate RD over Stream is a concrete stringer/multi-beam or girder carrying B64 Agate RD over Stream in Clayton County, Iowa. It was built in 2018, so it is 7 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 295 vehicles a day, roughly 20% of them trucks, projected to reach 295 by 2044. The structure is 110 ft (33.5 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 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 B64 Agate RD over Stream built?
It was built in 2018, making it 7 years old in 2025.
What condition is B64 Agate RD over Stream 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 October 2024.
How much traffic does B64 Agate RD over Stream carry?
About 295 vehicles per day (2022 count), of which roughly 20% are trucks.
How long is B64 Agate RD over Stream?
The structure is 110 ft (33.5 m) long with a longest span of 110 ft (33.5 m) and a deck 33 ft wide.
Who owns B64 Agate RD over Stream?
It is owned by the County Highway Agency.