Lone Tree RD over US 218
GoodBlack Hawk County, Iowa · 1.7 MI N of Ia 57 & Ia 58 · Structure no. 000000000601600
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 231 ft
- 2 main spans
- Daily traffic
- 2,358
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Lone Tree RD over US 218 is a steel continuous stringer/multi-beam or girder carrying Lone Tree RD over US 218 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 2,358 vehicles a day, roughly 6% of them trucks, projected to reach 2,358 by 2043. The structure is 231 ft (70.4 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Lone Tree RD over US 218 built?
It was built in 1995, making it 30 years old in 2025.
What condition is Lone Tree 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 June 2023.
How much traffic does Lone Tree RD over US 218 carry?
About 2,358 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is Lone Tree RD over US 218?
The structure is 231 ft (70.4 m) long with a longest span of 114 ft (34.7 m) and a deck 43 ft wide.
Who owns Lone Tree RD over US 218?
It is owned by the State Highway Agency.