FAU 7155(DUNCAN RD over Copper Slough
PoorChampaign County, Illinois · Duncan S of Sprngfld · Structure no. 010601000000000
- Built
- 1976
- 49 years old
- Condition
- Poor
- inspected September 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 40 ft
- 1 main span
- Daily traffic
- 7,550
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
FAU 7155(DUNCAN RD over Copper Slough is a prestressed concrete box beam or girders - multiple carrying FAU 7155(DUNCAN RD over Copper Slough in Champaign County, Illinois. It was built in 1976, so it is 49 years old, older 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 2 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 7,550 vehicles a day, roughly 5% of them trucks, projected to reach 7,626 by 2046. The structure is 40 ft (12.1 m) long and 40 ft wide.
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 | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| Superstructure | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 FAU 7155(DUNCAN RD over Copper Slough built?
It was built in 1976, making it 49 years old in 2025.
What condition is FAU 7155(DUNCAN RD over Copper Slough 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 September 2023.
How much traffic does FAU 7155(DUNCAN RD over Copper Slough carry?
About 7,550 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is FAU 7155(DUNCAN RD over Copper Slough?
The structure is 40 ft (12.1 m) long with a longest span of 37 ft (11.4 m) and a deck 40 ft wide.
Who owns FAU 7155(DUNCAN RD over Copper Slough?
It is owned by the City or Municipal Highway Agency.