WB US 30 over Cedar River Trail
FairLinn County, Iowa · 1.9 Mi. E of Jct. I-380 · Structure no. 000000000033455
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 183 ft
- 3 main spans
- Daily traffic
- 9,300
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
WB US 30 over Cedar River Trail is a prestressed concrete stringer/multi-beam or girder carrying WB US 30 over Cedar River Trail in Linn 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 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 9,300 vehicles a day, roughly 17% of them trucks, projected to reach 9,300 by 2043. The structure is 183 ft (55.8 m) long and 43 ft wide.
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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was WB US 30 over Cedar River Trail built?
It was built in 1974, making it 51 years old in 2025.
What condition is WB US 30 over Cedar River Trail 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 June 2023.
How much traffic does WB US 30 over Cedar River Trail carry?
About 9,300 vehicles per day (2021 count), of which roughly 17% are trucks.
How long is WB US 30 over Cedar River Trail?
The structure is 183 ft (55.8 m) long with a longest span of 69 ft (21 m) and a deck 43 ft wide.
Who owns WB US 30 over Cedar River Trail?
It is owned by the State Highway Agency.