Conger Road over Mill Creek
PoorOgle County, Illinois · 3 MI NW of Byron · Structure no. 071327100000000
- Built
- 1987
- 38 years old
- Condition
- Poor
- inspected August 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 68 ft
- 1 main span
- Daily traffic
- 250
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Conger Road over Mill Creek is a prestressed concrete box beam or girders - multiple carrying Conger Road over Mill Creek in Ogle County, Illinois. It was built in 1987, so it is 38 years old, younger than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 250 vehicles a day, roughly 37% of them trucks, projected to reach 234 by 2046. The structure is 68 ft (20.7 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Conger Road over Mill Creek built?
It was built in 1987, making it 38 years old in 2025.
What condition is Conger Road over Mill Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.
How much traffic does Conger Road over Mill Creek carry?
About 250 vehicles per day (2022 count), of which roughly 37% are trucks.
How long is Conger Road over Mill Creek?
The structure is 68 ft (20.7 m) long with a longest span of 66 ft (20.1 m) and a deck 24 ft wide.
Who owns Conger Road over Mill Creek?
It is owned by the Town or Township Highway Agency.