51 Street over I-380
GoodBenton County, Iowa · 2.8 Mi. S of Jct. SR D48 · Structure no. 000000000605435
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 334 ft
- 4 main spans
- Daily traffic
- 128
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
51 Street over I-380 is a steel continuous stringer/multi-beam or girder carrying 51 Street over I-380 in Benton County, Iowa. It was built in 1984, so it is 41 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 128 vehicles a day, projected to reach 128 by 2044. The structure is 334 ft (101.8 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 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 51 Street over I-380 built?
It was built in 1984, making it 41 years old in 2025.
What condition is 51 Street 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 November 2024.
How much traffic does 51 Street over I-380 carry?
About 128 vehicles per day (2022 count).
How long is 51 Street over I-380?
The structure is 334 ft (101.8 m) long with a longest span of 106 ft (32.3 m) and a deck 33 ft wide.
Who owns 51 Street over I-380?
It is owned by the State Highway Agency.