We recommend you include the following information in your citation. Look below the item for additional data you may want to include.
Contact Owning Institution
All fields are required.
Download Item
Please use this item responsibly. Check the rights information for this item to see if it has copyright restrictions. Note that even if the item is protected by copyright, you may be able to use it for educational, research, or other purposes. To learn more, read Calisphere's terms of use.
Do you need a bigger file? To obtain an alternate file type or higher resolution copy, please
contact the owning institution.
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: The U.S. Army Corps of Engineers, San Francisco District (Corps), and the City of St. Helena, California, the project's non-Federal sponsor, propose to remove or modify Upper York Creek Dam and appurtenances, remove accumulated sediment, and restore the local ecosystem structure. Removing or modifying the dam would improve fish passage for the federally listed steelhead (Oncorhynchus mykiss), would reduce the potential for future downstream sediment releases and fish kills, and would allow for the restoration of approximately 3 total acres of degraded riparian and riverine habitat surrounding Upper York Creek Dam. This report presents the findings of the alternatives analysis and the selection of a recommended plan for the Upper York Creek Ecosystem Restoration Project. Scope/Content: Height: 50 Length: 140 Scope/Content: Date constructed: 1900.
Type
text
Form/Genre
digital copy
Identifier
ark:/86086/n2nv9hwr 641
Language
English eng
Subject
Ecology and river restoration Dams Dam retirement
Place
Napa River, CA York Creek, CA Upper York Creek Dam United States
If you're wondering about permissions and what you can do with this item, a good starting point is the "rights information" on this page. See our terms of use for more tips.
Share your story
Has Calisphere helped you advance your research, complete a project, or find something meaningful? We'd love to hear about it; please send us a message.