Greenhill RD over Trolley Trail
GoodBlack Hawk County, Iowa · City Bridge No. 61 · Structure no. 000000000605915
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 175 ft
- 3 main spans
- Daily traffic
- 1,908
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Greenhill RD over Trolley Trail is a prestressed concrete stringer/multi-beam or girder carrying Greenhill RD over Trolley Trail in Black Hawk County, Iowa. It was built in 1989, so it is 36 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 1,908 vehicles a day, roughly 3% of them trucks, projected to reach 1,908 by 2043. The structure is 175 ft (53.3 m) long and 87 ft wide. If it were closed, the detour would be 1.9 mi (3 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 Greenhill RD over Trolley Trail built?
It was built in 1989, making it 36 years old in 2025.
What condition is Greenhill RD over Trolley Trail 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 Greenhill RD over Trolley Trail carry?
About 1,908 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is Greenhill RD over Trolley Trail?
The structure is 175 ft (53.3 m) long with a longest span of 61 ft (18.6 m) and a deck 87 ft wide.
Who owns Greenhill RD over Trolley Trail?
It is owned by the City or Municipal Highway Agency.