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Peshastin Fishway
These projects update irrigation infrastructure to ensure fish screens are operable, provide fish passage, and/or improve water use efficiency.
Peshastin Fishway
A fishway was constructed at the Peshastin Irrigation District diversion structure on lower Peshastin Creek. The structure allows access to spawning and rearing habitat for steelhead, bull trout and Spring Chinook. The project structure is a roughened channel fishway at a channel slope of 3.9% upstream from the dam axis on the left abutment. The p roject also includes installation of fish screens at head gates. The dam was notched for a 16ft width. From that notch the roughened channel fishway extends upstream for approximately 87 feet. The fishway have two training walls for the entire length that extend to elevation 1180 (same as the left abutment elevation) and was constructed of steel plate sections with rock support. Boulders were placed in the fishway invert to create a meandering flow pattern and provide shelter for fish. Two boulder weirs woulwere placed immediately downstream from the fishway exit to backwater flashboard weirs at the channel's upstream exit. These weirs are required to meet hydraulic drop criteria of 6 inches. The existing dam notch will be closed when the fishway is in use. The goal of the project was to connect isolated habitat to increase the range and distribution of salmon.
Posted: 02/19/2015 10:05 AM
Last Updated: 02/19/2015 10:21 AM
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The information contained on this site is provided as a courtesy of the Chelan County. Where it exists, the "Index.txt" will contain a brief explanation of files contained in this folder
Chelan County makes every effort to ensure the accuracy of the information provided on its web site. However, due to the possibility of transmission errors, HTML browser capabilities, changes made since the last update to the site, etc., neither Chelan County, nor any agency, officer or employee of Chelan County warrants the accuracy, reliability, or timeliness of any information published by this system and shall not be held liable for any losses caused by reliance on the accuracy, reliability, or timeliness of such information. Portions of such information may be incorrect or not current. Any person or entity that relies on any information obtained from this system does so at his or her own risk.
PLEASE NOTE: FTP browsing is no longer supported on the latest browsers, please refer below to acccess our FTP content.
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The information contained on this site is provided as a courtesy of the Chelan County. Where it exists, the "Index.txt" will contain a brief explanation of files contained in this folder
Chelan County makes every effort to ensure the accuracy of the information provided on its web site. However, due to the possibility of transmission errors, HTML browser capabilities, changes made since the last update to the site, etc., neither Chelan County, nor any agency, officer or employee of Chelan County warrants the accuracy, reliability, or timeliness of any information published by this system and shall not be held liable for any losses caused by reliance on the accuracy, reliability, or timeliness of such information. Portions of such information may be incorrect or not current. Any person or entity that relies on any information obtained from this system does so at his or her own risk.
PLEASE NOTE: FTP browsing is no longer supported on the latest browsers, please refer below to acccess our FTP content.
| Popular Browsers | Supported |
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By clicking continue, you confirm that you have read, understood and agreed to this disclaimer.
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GIS Disclaimer
The information contained on this site is provided as a courtesy of the Chelan County. Where it exists, the "Index.txt" will contain a brief explanation of files contained in this folder
Chelan County makes every effort to ensure the accuracy of the information provided on its web site. However, due to the possibility of transmission errors, HTML browser capabilities, changes made since the last update to the site, etc., neither Chelan County, nor any agency, officer or employee of Chelan County warrants the accuracy, reliability, or timeliness of any information published by this system and shall not be held liable for any losses caused by reliance on the accuracy, reliability, or timeliness of such information. Portions of such information may be incorrect or not current. Any person or entity that relies on any information obtained from this system does so at his or her own risk.
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GIS Disclaimer
The information contained on this site is provided as a courtesy of the Chelan County. Where it exists, the "Index.txt" will contain a brief explanation of files contained in this folder
Chelan County makes every effort to ensure the accuracy of the information provided on its web site. However, due to the possibility of transmission errors, HTML browser capabilities, changes made since the last update to the site, etc., neither Chelan County, nor any agency, officer or employee of Chelan County warrants the accuracy, reliability, or timeliness of any information published by this system and shall not be held liable for any losses caused by reliance on the accuracy, reliability, or timeliness of such information. Portions of such information may be incorrect or not current. Any person or entity that relies on any information obtained from this system does so at his or her own risk.
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