US 30 over Six Mile Creek
FairHarrison County, Iowa · 0.3 Mi. E of Ia 44 · Structure no. 000000000027461
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 167 ft
- 3 main spans
- Daily traffic
- 4,490
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 30 over Six Mile Creek is a prestressed concrete stringer/multi-beam or girder carrying US 30 over Six Mile Creek in Harrison County, Iowa. It was built in 1988, so it is 37 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 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 4,490 vehicles a day, roughly 17% of them trucks, projected to reach 4,490 by 2043. The structure is 167 ft (50.9 m) long and 47 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| 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 Six Mile Creek built?
It was built in 1988, making it 37 years old in 2025.
What condition is US 30 over Six Mile Creek 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 30 over Six Mile Creek carry?
About 4,490 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is US 30 over Six Mile Creek?
The structure is 167 ft (50.9 m) long with a longest span of 82 ft (25 m) and a deck 47 ft wide.
Who owns US 30 over Six Mile Creek?
It is owned by the State Highway Agency.