Herber RD over Little Maquoketa River
GoodDubuque County, Iowa · 090E22604 · Structure no. 000000000148051
- Built
- 2015
- 10 years old
- Condition
- Good
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 576 ft
- 5 main spans
- Daily traffic
- 1,910
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Herber RD over Little Maquoketa River is a prestressed concrete stringer/multi-beam or girder carrying Herber RD over Little Maquoketa River in Dubuque County, Iowa. It was built in 2015, so it is 10 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 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 1,910 vehicles a day, projected to reach 1,910 by 2043. The structure is 576 ft (175.6 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Herber RD over Little Maquoketa River built?
It was built in 2015, making it 10 years old in 2025.
What condition is Herber RD over Little 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 April 2023.
How much traffic does Herber RD over Little Maquoketa River carry?
About 1,910 vehicles per day (2023 count).
How long is Herber RD over Little Maquoketa River?
The structure is 576 ft (175.6 m) long with a longest span of 117 ft (35.7 m) and a deck 33 ft wide.
Who owns Herber RD over Little Maquoketa River?
It is owned by the County Highway Agency.