The portion of Brooks Avenue from Howard Road in Gates to Genesee Park Boulevard in Rochester was originally designated as part of NY 47 between 1935 and 1938. When NY 47 was rerouted to follow Beahan Road and Scottsville Road between Howard Road and Elmwood Avenue , the former alignment of NY 47 on Brooks Avenue and Genesee Park Boulevard was redesignated NY 33B. The NY 33B designation was removed and reapplied to a new highway in the Buffalo area . The portion of NY 33B west of the Rochester city line was redesignated as NY 204.