On November 4-7, 2019, bathymetric data were collected on the Sandusky River between Tiffin and Fremont, Ohio. Wading measurements were made at cross-sections shallower than about 1 foot using a survey pole with a Trimble R10 Global Navigation Satellite System (GNSS) receiver connected to the Ohio Department of Transportation (ODOT) real-time virtual reference station (VRS) network. Cross-sections that were deeper than about 1 foot were measured with a CEE-ECHO single-beam echosounder mounted to a canoe. A Trimble R10 GNSS receiver connected to the ODOT real-time VRS network was mounted directly above the echosounder and integrated with the echosounder data collection unit to convert measured depths to bed elevations. The echosounder was also used to collect bathymetric data while moving between cross-sections, where depths allowed. During a limited part of the bathymetric survey (November 4-6, 2019), a YSI EXO2 Multiparameter Sonde was deployed from the canoe to measure water temperature, dissolved oxygen, specific conductance, pH, and turbidity. The EXO2 collected data where depth allowed at cross-sections and while moving between cross-sections.