US 30 over Boyer River
FairHarrison County, Iowa · 3.7 Mi. W of Jct. Ia 37 · Structure no. 000000000027560
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 285 ft
- 3 main spans
- Daily traffic
- 3,090
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 30 over Boyer River is a steel continuous stringer/multi-beam or girder carrying US 30 over Boyer River in Harrison County, Iowa. It was built in 1968, so it is 57 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 6 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 3,090 vehicles a day, roughly 24% of them trucks, projected to reach 3,090 by 2042. The structure is 285 ft (86.9 m) long and 47 ft wide. If it were closed, the detour would be 21.7 mi (35 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 30 over Boyer River built?
It was built in 1968, making it 57 years old in 2025.
What condition is US 30 over Boyer 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 April 2023.
How much traffic does US 30 over Boyer River carry?
About 3,090 vehicles per day (2022 count), of which roughly 24% are trucks.
How long is US 30 over Boyer River?
The structure is 285 ft (86.9 m) long with a longest span of 109 ft (33.2 m) and a deck 47 ft wide.
Who owns US 30 over Boyer River?
It is owned by the State Highway Agency.