Black RD over Rock Creek
GoodWhiteside County, Illinois · 5 SW of Morrison · Structure no. 098306300000000
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected March 2021
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 189 ft
- 3 main spans
- Daily traffic
- 725
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Black RD over Rock Creek is a prestressed concrete box beam or girders - multiple carrying Black RD over Rock Creek in Whiteside County, Illinois. It was built in 2018, so it is 7 years old, younger than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 725 vehicles a day, roughly 23% of them trucks, projected to reach 732 by 2046. The structure is 189 ft (57.5 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Black RD over Rock Creek built?
It was built in 2018, making it 7 years old in 2025.
What condition is Black RD over Rock Creek 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 March 2021.
How much traffic does Black RD over Rock Creek carry?
About 725 vehicles per day (2021 count), of which roughly 23% are trucks.
How long is Black RD over Rock Creek?
The structure is 189 ft (57.5 m) long with a longest span of 72 ft (21.9 m) and a deck 28 ft wide.
Who owns Black RD over Rock Creek?
It is owned by the County Highway Agency.