YELLOW BEAR DAM, ALLEN , SD  

YEAR COMPLETED - PROFESSIONAL SERVICES:  2005

YEAR COMPLETED - CONSTRUCTION:  N/A       

PROJECT OWNER:   BIA GREAT PLAINS 

Aaron Swan and Associates performed their hydraulic analysis for this project using the HEC-RAS Model (Boss version 3.1.3).  This criterion was used to calculate the water surface elevations and flow volumes for the proposed structure for 50 year and 100 year storm events.  The data was used to determine the height of the earthen dam (storage capacity of the reservoir) and the size of the spillway.