FAU-1239 Rockland over Desplaines River
PoorLake County, Illinois · 1.5 MI W I-94 · Structure no. 049304800000000
- Built
- 1990
- 35 years old
- Condition
- Poor
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 156 ft
- 3 main spans
- Daily traffic
- 3,450
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
FAU-1239 Rockland over Desplaines River is a prestressed concrete box beam or girders - multiple carrying FAU-1239 Rockland over Desplaines River in Lake County, Illinois. It was built in 1990, so it is 35 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 3,450 vehicles a day, roughly 2% of them trucks, projected to reach 5,101 by 2046. The structure is 156 ft (47.4 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FAU-1239 Rockland over Desplaines River built?
It was built in 1990, making it 35 years old in 2025.
What condition is FAU-1239 Rockland over Desplaines River 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 June 2023.
How much traffic does FAU-1239 Rockland over Desplaines River carry?
About 3,450 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is FAU-1239 Rockland over Desplaines River?
The structure is 156 ft (47.4 m) long with a longest span of 49 ft (15 m) and a deck 33 ft wide.
Who owns FAU-1239 Rockland over Desplaines River?
It is owned by the City or Municipal Highway Agency.