Dane RD over US 218
GoodJohnson County, Iowa · 0.8 Mi. S of Jct. Ia #1 · Structure no. 000000000605535
- Built
- 1983
- 42 years old
- Condition
- Good
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 409 ft
- 4 main spans
- Daily traffic
- 630
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Dane RD over US 218 is a steel continuous stringer/multi-beam or girder carrying Dane RD over US 218 in Johnson 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 630 vehicles a day, roughly 7% of them trucks, projected to reach 630 by 2043. The structure is 409 ft (124.7 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 Dane RD over US 218 built?
It was built in 1983, making it 42 years old in 2025.
What condition is Dane RD over US 218 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 July 2023.
How much traffic does Dane RD over US 218 carry?
About 630 vehicles per day (2022 count), of which roughly 7% are trucks.
How long is Dane RD over US 218?
The structure is 409 ft (124.7 m) long with a longest span of 132 ft (40.2 m) and a deck 33 ft wide.
Who owns Dane RD over US 218?
It is owned by the State Highway Agency.