Final Sediment Augmentation Pilot Study Report

A Sediment Augmentation Experiment Alternatives Screening Study (Screening Study) was conducted to evaluate alternatives to reduce the approximately 150,000-ton/year average annual sediment deficit in the Platte River reach between Lexington and Odessa, Nebraska. The Screening Study recommended that a Pilot Study be conducted to evaluate the means and methods of sediment augmentation as a way to reduce uncertainties associated with full-scale implementation. The Pilot Study management action was intended to introduce 100,000 tons (80,000 yd3) of sediment into the project reach each year for 2 years (2012 and 2013). The results of the Pilot Study will be used to inform the Platte River Recovery Implementation Program (Program or PRRIP) on considerations for full-scale sediment augmentation.