US 20 EB over Ia 58
FairBlack Hawk County, Iowa · At the Jct. Iowa #27 & 58 · Structure no. 000000000605640
- Built
- 1984
- 41 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 183 ft
- 3 main spans
- Daily traffic
- 7,050
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 20 EB over Ia 58 is a prestressed concrete stringer/multi-beam or girder carrying US 20 EB over Ia 58 in Black Hawk 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 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 7,050 vehicles a day, roughly 20% of them trucks, projected to reach 7,050 by 2044. The structure is 183 ft (55.8 m) long and 43 ft wide.
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 | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 20 EB over Ia 58 built?
It was built in 1984, making it 41 years old in 2025.
What condition is US 20 EB over Ia 58 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 June 2024.
How much traffic does US 20 EB over Ia 58 carry?
About 7,050 vehicles per day (2022 count), of which roughly 20% are trucks.
How long is US 20 EB over Ia 58?
The structure is 183 ft (55.8 m) long with a longest span of 92 ft (28 m) and a deck 43 ft wide.
Who owns US 20 EB over Ia 58?
It is owned by the State Highway Agency.