US 151 over Iowa River Overflow
FairIowa County, Iowa · 1.6 Mi. S of JCT Ia 220 · Structure no. 000000000029551
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 693 ft
- 10 main spans
- Daily traffic
- 5,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 151 over Iowa River Overflow is a prestressed concrete stringer/multi-beam or girder carrying US 151 over Iowa River Overflow in Iowa County, Iowa. It was built in 1974, so it is 51 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 5,500 vehicles a day, roughly 12% of them trucks, projected to reach 5,500 by 2043. The structure is 693 ft (211.2 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
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 151 over Iowa River Overflow built?
It was built in 1974, making it 51 years old in 2025.
What condition is US 151 over Iowa River Overflow 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 August 2023.
How much traffic does US 151 over Iowa River Overflow carry?
About 5,500 vehicles per day (2022 count), of which roughly 12% are trucks.
How long is US 151 over Iowa River Overflow?
The structure is 693 ft (211.2 m) long with a longest span of 69 ft (21 m) and a deck 47 ft wide.
Who owns US 151 over Iowa River Overflow?
It is owned by the State Highway Agency.