SB I-380 over West Blue Creek
GoodLinn County, Iowa · 2.7 Mi. N of JCT SR W35 · Structure no. 000000000605115
- Built
- 1982
- 43 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 189 ft
- 3 main spans
- Daily traffic
- 10,750
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
SB I-380 over West Blue Creek is a prestressed concrete stringer/multi-beam or girder carrying SB I-380 over West Blue Creek 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 10,750 vehicles a day, roughly 27% of them trucks, projected to reach 10,750 by 2044. The structure is 189 ft (57.6 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
| 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 SB I-380 over West Blue Creek built?
It was built in 1982, making it 43 years old in 2025.
What condition is SB I-380 over West Blue Creek 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 November 2024.
How much traffic does SB I-380 over West Blue Creek carry?
About 10,750 vehicles per day (2022 count), of which roughly 27% are trucks.
How long is SB I-380 over West Blue Creek?
The structure is 189 ft (57.6 m) long with a longest span of 65 ft (19.8 m) and a deck 43 ft wide.
Who owns SB I-380 over West Blue Creek?
It is owned by the State Highway Agency.