Text / Preliminary fish passage monitoring plan for the Sandy River following the removal …

Preliminary fish passage monitoring plan for the Sandy River following the removal of Marmot Dam

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Title: Preliminary fish passage monitoring plan for the Sandy River following the removal of Marmot Dam
Creator: Stillwater Sciences
Date Created and/or Issued: 7/1/02
Contributing Institution: UC Riverside, Library, Water Resources Collections and Archives
Collection: Clearinghouse for Dam Removal Information (CDRI)
Rights Information: Copyrighted
Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user.
Description: Scope/Content: Abstract: This monitoring plan proposes to use channel complexity as an indicator of potential fish barriers following the removal of Marmot Dam. Channel complexity at four monitoring sites will be measured using the standard deviation of channel bed elevation, which will be surveyed annually for at least three years prior to dam removal, and continue annually after the dam removal until the risks of potential passage barrier formation becomes sufficiently small. We selected one site in the Reservoir Reach, two sites in Reach 1, and one site at the top of Reach 3. In the Reservoir Reach and Reach 1, the monitoring duration would be one year plus two consecutive years with (1) no barriers to fish passage, and (2) either improved channel complexity or channel complexity within the range of values prior to dam removal (i.e., monitoring would be conducted for at least three years in these reaches). Reach 3 would be monitored for the duration of monitoring in Reach 1 plus two consecutive years with (1) no barriers to fish passage, and (2) either improved channel complexity or channel complexity within the range of values prior to dam removal (i.e., monitoring would be conducted for at least five years in this reach). Channel bed surveys must be accompanied by reconnaissance trips to assess actual passage conditions in the Sandy River.
Scope/Content: Height: 50
Scope/Content: Date constructed: 1913. Date removed: 2007.
Type: text
Form/Genre: digital copy
Identifier: ark:/86086/n2f76c7c
702
Subject: Fisheries and fish passage
Pre- and post-project monitoring
Dams
Dam retirement
Place: Sandy River, OR
Marmot Dam
United States

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