Tripp County Emergency Manager, Jon Burdette, is reporting that the National Weather service has issued a Flood Warning for the Keya Paha river through Sunday night. The Hidden Timber Dam in Todd County broke this morning. Part of the dam has washed away. This dam leads into the Keya Paha river. This will add to the current flooding. Residents along the Keya Paha river are asked to evacuate and get to higher ground. National Weather Service is determining 3-4 hours before it will reach the Keya Paha in Tripp County. So, approximately around noon central time you should notice some rising in the water. If you have any questions, please contact dispatch in Winner or you may contact Jon Burdette on his cell at 605-840-0342.