Cedar Ridge RD over I-380
GoodLinn County, Iowa · 1.5 Mi. N of Jct. SR W36 · Structure no. 000000000605095
- Built
- 1982
- 43 years old
- Condition
- Good
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 273 ft
- 4 main spans
- Daily traffic
- 70
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Cedar Ridge RD over I-380 is a prestressed concrete stringer/multi-beam or girder carrying Cedar Ridge RD over I-380 in Linn County, Iowa. It was built in 1982, so it is 43 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 70 vehicles a day, roughly 24% of them trucks, projected to reach 70 by 2044. The structure is 273 ft (83.2 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Cedar Ridge RD over I-380 built?
It was built in 1982, making it 43 years old in 2025.
What condition is Cedar Ridge RD over I-380 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.
How much traffic does Cedar Ridge RD over I-380 carry?
About 70 vehicles per day (2022 count), of which roughly 24% are trucks.
How long is Cedar Ridge RD over I-380?
The structure is 273 ft (83.2 m) long with a longest span of 91 ft (27.7 m) and a deck 33 ft wide.
Who owns Cedar Ridge RD over I-380?
It is owned by the State Highway Agency.