Boar RD over I-380
GoodLinn County, Iowa · 1.6 Mi. S of S.R. W36 · Structure no. 000000000605085
- Built
- 1983
- 42 years old
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 376 ft
- 4 main spans
- Daily traffic
- 39
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Boar RD over I-380 is a steel continuous stringer/multi-beam or girder carrying Boar RD over I-380 in Linn County, Iowa. It was built in 1983, so it is 42 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 39 vehicles a day, projected to reach 39 by 2043. The structure is 376 ft (114.6 m) long and 33 ft wide. If it were closed, the detour would be 21.1 mi (34 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 Boar RD over I-380 built?
It was built in 1983, making it 42 years old in 2025.
What condition is Boar 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 October 2023.
How much traffic does Boar RD over I-380 carry?
About 39 vehicles per day (2022 count).
How long is Boar RD over I-380?
The structure is 376 ft (114.6 m) long with a longest span of 121 ft (36.9 m) and a deck 33 ft wide.
Who owns Boar RD over I-380?
It is owned by the State Highway Agency.