« All Events This event has passed. Petersburg City Hall May 18 @ 11:48 pm Riverwatch monitoring: Sangamon River, Sangamon River Forest Preserve » Add to calendar Google Calendar iCalendar Outlook 365 Outlook Live Details Date: May 18, 2024 Time: 11:48 pm Venue Petersburg City Hall 122 S. 6th Street Petersburg, IL 62675 United States + Google Map