51 River Corridor Processes and Related Decision Making (Posters)

Tuesday, 19 March 2019
8:00 AM - 12:00 PM
Casco Bay Hall

USING RESERVOIR SIZE, WATERSHED CHARACTERISTICS, AND SEDIMENT TRANSPORT PROXIES TO ESTIMATE IMPOUNDED SEDIMENT VOLUME AND DOMINANT GRAIN SIZE AT DAMS IN NEW ENGLAND

Paper number: 51-7
Program: Theme Sessions
Time: 8:00 AM – 12:00 PM

Authors

Abstract

Large volumes of impounded sediment, especially fine-grained sediment, decrease dam storage capacity and increase the cost and logistical complexity of dam removal. Regression analysis was used to identify relationships between reservoir size, sediment supply proxies, sediment transport proxies, and impounded sediment volume and grain size at numerous previous dam removal sites in New England. Relationships from regression analysis were used to estimate sediment characteristics at additional New England dams informing a region-wide tradeoff analysis between impounded sediment characteristics, improvements to fish passage, and dam safety.

Geological Society of America Abstracts with Programs. Vol. 51, No. 1

doi: 10.1130/abs/2019NE-327944

© Copyright 2019 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.