109th Street in Allison Township, South Dakota

109th Street in Brown County is a gravel unclassified road. It runs in an east-west direction and crosses 375th Avenue, 376th Avenue, 378th Avenue, 382nd Avenue and 383rd Avenue and ends at 384th Avenue, while the other end is a cul-de-sac. It connects Allison Township and Frederick Township. 109th Street also exists in North Detroit Township, Lansing Township and Richland Township.