Rush Run enters the Olentangy River at RM 8.75. It is 1.5 miles in length and drains approximately 2 square miles in Franklin County. The Ohio EPA monitored this tributary in 1999 adjacent to Walnut Grove Cemetery (RM 0.4 and 0.3) The results are listed in the table below. Flow was substantial in this stream even during the drought. As classified by the Palmer Drought Severity Index, severe to extreme drought conditions were indicated for the period between July and October 1999 (Ohio DNR 1999).
of 6 times during the summer. Flow was substantial in Rush Run even during the height of the drought.
In 2006 the National Fish and Wildlife Foundation awarded FLOW a grant to restore a section of the streamside along Rush Run. A major volunteer restoration effort focused on the removal of invasive honeysuckle and garlic mustard which have crowded out the native wildflower population.