The patrols have been supported by West Mercia Police, Shropshire Fire and Rescue Service and businesses in the town.
After the evening river patrols, street pastors take over from 23:00 GMT, continuing to help members of the community, said West Mercia Search and Rescue.
It urged people to “remain mindful around waterways and look out for one another”.
Advice to help anyone in trouble after going into the water, includes shouting for help, while rescuers should try to help reach them with something safe, or throw a flotation aid into the water and call 999 immediately.