US 30 WB over Des Plaines River
PoorWill County, Illinois · 0.8 M W of Il 171 · Structure no. 099010100000000
- Built
- 1933
- 92 years old, rebuilt 2025
- Condition
- Poor
- inspected June 2024
- Type
- Movable - Bascule
- Steel
- Length
- 289 ft
- 1 main span
- Daily traffic
- 13,600
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 30 WB over Des Plaines River is a steel movable - bascule carrying US 30 WB over Des Plaines River in Will County, Illinois. It was built in 1933 and reconstructed in 2025, so it is 92 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. Its operating status is: open, would be posted or closed except for temporary shoring.
It carries about 13,600 vehicles a day, roughly 2% of them trucks, projected to reach 17,150 by 2046. The structure is 289 ft (88.2 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 30 WB over Des Plaines River built?
It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2025.
What condition is US 30 WB over Des Plaines 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 2024.
How much traffic does US 30 WB over Des Plaines River carry?
About 13,600 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is US 30 WB over Des Plaines River?
The structure is 289 ft (88.2 m) long with a longest span of 174 ft (53 m) and a deck 60 ft wide.
Who owns US 30 WB over Des Plaines River?
It is owned by the State Highway Agency.