Ia 3 over Little Maquoketa River
FairDubuque County, Iowa · 0.4 Mi. N of N JCT SR D10 · Structure no. 000000000024001
- Built
- 1947
- 78 years old, rebuilt 1975
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 243 ft
- 3 main spans
- Daily traffic
- 5,100
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 3 over Little Maquoketa River is a steel continuous stringer/multi-beam or girder carrying Ia 3 over Little Maquoketa River in Dubuque County, Iowa. It was built in 1947 and reconstructed in 1975, so it is 78 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 5,100 vehicles a day, roughly 5% of them trucks, projected to reach 5,100 by 2042. The structure is 243 ft (74.1 m) long and 48 ft wide. If it were closed, the detour would be 19.9 mi (32 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| 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 Ia 3 over Little Maquoketa River built?
It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1975.
What condition is Ia 3 over Little Maquoketa River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.
How much traffic does Ia 3 over Little Maquoketa River carry?
About 5,100 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is Ia 3 over Little Maquoketa River?
The structure is 243 ft (74.1 m) long with a longest span of 93 ft (28.3 m) and a deck 48 ft wide.
Who owns Ia 3 over Little Maquoketa River?
It is owned by the State Highway Agency.