The victim honked at a car parked in the middle of the street before the other driver got out and fired a gunshot that struck him in the leg, police said.
The middle school will have a virtual learning day after a water main break disrupted its water supply, the Riverview Gardens School District announced.
Police are searching for the driver who struck the mother and daughter and put them in the hospital. There have been a dozen crashes at that intersection this year.
When remediation begins in the areas, the "DO NOT DIG" signs will be replaced with a "CAUTION CONTAMINTATION AREA" sign that features the trefoil symbol.
Dionna Samuel was fatally shot Monday while on the job at an East St. Louis McDonald's. Her mother and local officials said they don't believe she was the target.