Thunder Road over N Fork Maquoketa River
GoodDubuque County, Iowa · 090W11807 · Structure no. 000000000366975
- Built
- 2024
- 1 years old
- Condition
- Good
- inspected August 2024
- Type
- Slab
- Concrete Continuous
- Length
- 83 ft
- 3 main spans
- Daily traffic
- 380
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Thunder Road over N Fork Maquoketa River is a concrete continuous slab carrying Thunder Road over N Fork Maquoketa River in Dubuque County, Iowa. It was built in 2024, so it is 1 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 380 vehicles a day, roughly 7% of them trucks, projected to reach 380 by 2044. The structure is 83 ft (25.3 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 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 Thunder Road over N Fork Maquoketa River built?
It was built in 2024, making it 1 years old in 2025.
What condition is Thunder Road over N Fork Maquoketa River 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 August 2024.
How much traffic does Thunder Road over N Fork Maquoketa River carry?
About 380 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is Thunder Road over N Fork Maquoketa River?
The structure is 83 ft (25.3 m) long with a longest span of 31 ft (9.4 m) and a deck 33 ft wide.
Who owns Thunder Road over N Fork Maquoketa River?
It is owned by the County Highway Agency.