US 30 over E Br Big Rock Creek
GoodKane County, Illinois · 1.7M E of Kane-Dek L · Structure no. 045200600000000
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 128 ft
- 3 main spans
- Daily traffic
- 5,300
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 30 over E Br Big Rock Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying US 30 over E Br Big Rock Creek in Kane County, Illinois. It was built in 1984, so it is 41 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 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 5,300 vehicles a day, roughly 12% of them trucks, projected to reach 6,527 by 2046. The structure is 128 ft (39 m) long and 43 ft wide.
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. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 30 over E Br Big Rock Creek built?
It was built in 1984, making it 41 years old in 2025.
What condition is US 30 over E Br Big 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 June 2023.
How much traffic does US 30 over E Br Big Rock Creek carry?
About 5,300 vehicles per day (2023 count), of which roughly 12% are trucks.
How long is US 30 over E Br Big Rock Creek?
The structure is 128 ft (39 m) long with a longest span of 41 ft (12.6 m) and a deck 43 ft wide.
Who owns US 30 over E Br Big Rock Creek?
It is owned by the State Highway Agency.