Blairsferry RD over I 380
FairLinn County, Iowa · 0.6 Mi. N of Jct. Ia 100 · Structure no. 000000000604730
- Built
- 1980
- 45 years old
- Condition
- Fair
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 257 ft
- 4 main spans
- Daily traffic
- 8,891
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Blairsferry RD over I 380 is a prestressed concrete stringer/multi-beam or girder carrying Blairsferry RD over I 380 in Linn County, Iowa. It was built in 1980, so it is 45 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 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 8,891 vehicles a day, roughly 2% of them trucks, projected to reach 8,891 by 2043. The structure is 257 ft (78.3 m) long and 93 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Blairsferry RD over I 380 built?
It was built in 1980, making it 45 years old in 2025.
What condition is Blairsferry RD over I 380 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 February 2023.
How much traffic does Blairsferry RD over I 380 carry?
About 8,891 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Blairsferry RD over I 380?
The structure is 257 ft (78.3 m) long with a longest span of 81 ft (24.7 m) and a deck 93 ft wide.
Who owns Blairsferry RD over I 380?
It is owned by the State Highway Agency.