Ramp B (eb) over Cedar River Overflow
GoodBlack Hawk County, Iowa · At Jct. U.S. 218 & Ia 57 · Structure no. 000000000601545
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 581 ft
- 6 main spans
- Daily traffic
- 3,400
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ramp B (eb) over Cedar River Overflow is a prestressed concrete stringer/multi-beam or girder carrying Ramp B (eb) over Cedar River Overflow in Black Hawk County, Iowa. It was built in 1995, so it is 30 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 3,400 vehicles a day, roughly 3% of them trucks, projected to reach 3,400 by 2043. The structure is 581 ft (177.1 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ramp B (eb) over Cedar River Overflow built?
It was built in 1995, making it 30 years old in 2025.
What condition is Ramp B (eb) over Cedar River Overflow 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 2023.
How much traffic does Ramp B (eb) over Cedar River Overflow carry?
About 3,400 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is Ramp B (eb) over Cedar River Overflow?
The structure is 581 ft (177.1 m) long with a longest span of 97 ft (29.6 m) and a deck 43 ft wide.
Who owns Ramp B (eb) over Cedar River Overflow?
It is owned by the State Highway Agency.