The U.S. Geological Survey (USGS) monitors water surface flow reversals, commercial vessel traffic, and water temperature and specific conductance in the U.S. Army Corps of Engineers Electric Dispersal Barrier System (EDBS) on the Chicago Sanitary and Ship Canal, Chicago, Illinois. These data are planned to be released on USGS ScienceBase annually. This data release is the summary of all the data collected from water year 2019 (October 1, 2018, to September 30, 2019). Meyers and others (2019) describe all the data collected during October 1, 2018, to September 30, 2019. Water surface flow reversals at the EDBS were monitored using surface velocity radar. Commercial vessel traffic patterns through the EDBS were documented using a motion-activated video camera. Commercial vessel traffic data are only available from October 1, 2018, to July 3, 2019. Water temperature and specific conductance were reported in near real-time from USGS sensors at streamgage 05536995, installed just downstream from the EDBS.