SPRING CREEK BRIDGE , ROSEBUD INDIAN RESERVATION, SPRING CREEK , SOUTH DAKOTA

YEAR COMPLETED - PROFESSIONAL SERVICES:  2000

YEAR COMPLETED - CONSTRUCTION:  N/A

PROJECT OWNER:    ROSEBUD SIOUX TRIBE—TEA-21

Aaron Swan and Associates performed their hydraulic analysis for this project using the USGS Water Resources Investigations 35-74, A Method for Estimating Magnitude and Frequency of Floods in South Dakota , prepared for the South Dakota Department of Transportation in cooperation with the Unite States Department of Transportation, Federal Highway Administration.  HEC-RAS routing was used to calculate 50 year and 100 year water surface elevations and flow volumes through the proposed structure.  

Drainage area, average slopes and elevations were determined using the USGS 7½ minute quadrangle maps and local hydraulics survey was performed by Aaron Swan and Associates.  The analyses were performed for the design, location and channel protection for a bridge over the Little White River on the Rosebud Indian Reservation.