US 61 & 151 over Mississippi River Island
FairDubuque County, Iowa · In North Dubuque · Structure no. 000000000604440
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected September 2024
- Type
- Arch - Thru
- Steel
- Length
- 2,950 ft
- 1 main span
- Daily traffic
- 20,400
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 61 & 151 over Mississippi River Island is a steel arch - thru carrying US 61 & 151 over Mississippi River Island in Dubuque County, Iowa. It was built in 1982, so it is 43 years old, younger 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 20,400 vehicles a day, roughly 17% of them trucks, projected to reach 20,400 by 2044. The structure is 2,950 ft (899.2 m) long and 75 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 61 & 151 over Mississippi River Island built?
It was built in 1982, making it 43 years old in 2025.
What condition is US 61 & 151 over Mississippi River Island 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 September 2024.
How much traffic does US 61 & 151 over Mississippi River Island carry?
About 20,400 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is US 61 & 151 over Mississippi River Island?
The structure is 2,950 ft (899.2 m) long with a longest span of 670 ft (204.2 m) and a deck 75 ft wide.
Who owns US 61 & 151 over Mississippi River Island?
It is owned by the State Highway Agency.