US 30 WB over Des Moines River
FairBoone County, Iowa · 1.3 Miles E of JCT SR R18 · Structure no. 000000000015210
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected April 2024
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 724 ft
- 7 main spans
- Daily traffic
- 4,350
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 30 WB over Des Moines River is a steel continuous girder and floorbeam system carrying US 30 WB over Des Moines River in Boone County, Iowa. It was built in 1963, so it is 62 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 4,350 vehicles a day, roughly 12% of them trucks, projected to reach 4,350 by 2043. The structure is 724 ft (220.7 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 US 30 WB over Des Moines River built?
It was built in 1963, making it 62 years old in 2025.
What condition is US 30 WB over Des Moines 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 2024.
How much traffic does US 30 WB over Des Moines River carry?
About 4,350 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is US 30 WB over Des Moines River?
The structure is 724 ft (220.7 m) long with a longest span of 109 ft (33.2 m) and a deck 36 ft wide.
Who owns US 30 WB over Des Moines River?
It is owned by the State Highway Agency.