N Lasalle ST over Main Br Chicago Rv
PoorPosted for loadCook County, Illinois · 307 N Lasalle St. · Structure no. 016603200000000
- Built
- 1928
- 97 years old, rebuilt 1971
- Condition
- Poor
- inspected September 2023
- Type
- Movable - Bascule
- Steel
- Length
- 326 ft
- 1 main span
- Daily traffic
- 18,600
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
N Lasalle ST over Main Br Chicago Rv is a steel movable - bascule carrying N Lasalle ST over Main Br Chicago Rv in Cook County, Illinois. It was built in 1928 and reconstructed in 1971, so it is 97 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 3 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: posted for load restriction.
It carries about 18,600 vehicles a day, roughly 5% of them trucks, projected to reach 12,373 by 2046. The structure is 326 ft (99.5 m) long and 86 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was N Lasalle ST over Main Br Chicago Rv built?
It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1971.
What condition is N Lasalle ST over Main Br Chicago Rv 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 N Lasalle ST over Main Br Chicago Rv carry?
About 18,600 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is N Lasalle ST over Main Br Chicago Rv?
The structure is 326 ft (99.5 m) long with a longest span of 242 ft (73.8 m) and a deck 86 ft wide.
Who owns N Lasalle ST over Main Br Chicago Rv?
It is owned by the City or Municipal Highway Agency.