Ia 136 over N Fork Maquoketa River
GoodDubuque County, Iowa · 2.0 Mi. N. of US 151 · Structure no. 000000000024121
- Built
- 2017
- 8 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 237 ft
- 3 main spans
- Daily traffic
- 2,140
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 136 over N Fork Maquoketa River is a prestressed concrete stringer/multi-beam or girder carrying Ia 136 over N Fork Maquoketa River in Dubuque County, Iowa. It was built in 2017, so it is 8 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 2,140 vehicles a day, roughly 17% of them trucks, projected to reach 2,140 by 2043. The structure is 237 ft (72.2 m) long and 47 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 136 over N Fork Maquoketa River built?
It was built in 2017, making it 8 years old in 2025.
What condition is Ia 136 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 September 2023.
How much traffic does Ia 136 over N Fork Maquoketa River carry?
About 2,140 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is Ia 136 over N Fork Maquoketa River?
The structure is 237 ft (72.2 m) long with a longest span of 112 ft (34.1 m) and a deck 47 ft wide.
Who owns Ia 136 over N Fork Maquoketa River?
It is owned by the State Highway Agency.