Text / Stream Channel Assessment for Horse Creek Dam Removal Project

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Title: Stream Channel Assessment for Horse Creek Dam Removal Project
Creator: Antonio Llanos
Michael Love
Michael Love & Associates
Date Created and/or Issued: 2005 October 07
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: Horse Creek is a tributary to the Sisquoc River, a designated Wild and Scenic River in northern Santa Barbara County. Horse Creek lies entirely within the Los Padres National Forest, with most of the watershed lying within the San Rafael Wilderness. Horse Creek is the furthest downstream tributary to the Sisquoc River that is entirely within the National Forest. This stream is believed to have historically served as spawning and rearing habitat for Southern Steelhead, an anadromous form of rainbow trout which is currently listed as Endangered under the Federal Endangered Species Act. However, on Horse Creek approximately 850 feet upstream of the Sisquoc River exists an abandoned concrete dam. The dam crest is nearly 9 feet above the downstream channel bed, and based on an earlier barrier assessment it is believed to block all upstream migrating fish (Stoecker, 2003). The dam is constructed of sacrete and rebar and contains a stilling well, likely installed for gaging stream flows. The dam is completely filled-in with sediment and no longer serves its intended purpose. The Community Environmental Council, the Los Padres National Forest, and the California Department of Fish and Game are working together to remove the abandoned dam and restore access for steelhead to the upstream habitat. Michael Love & Associates was contracted to perform a site survey with the assistance of Stoecker Ecological to characterize the existing physical channel conditions, evaluate anticipated channel response associated with removal of the dam, and characterize the streams hydrology through estimation of peak flows and associated recurrence intervals.
Scope/Content: Height: 9
Type: text
Form/Genre: digital copy
Identifier: ark:/86086/n2qr4wt3
89
Subject: Ecology and river restoration
Pre- and post-project monitoring
Dams
Dam retirement
Place: Horse Creek, CA
Sisquoc River, CA
Horse Creek Dam
US

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