Emergency Estudillo Canal (Zone 2 Line A) Channel Wall Temporary Stabilization, Between I-880 Freeway and Fargo Avenue, in San Leandro, Alameda County.
Summary
SCH Number
2023020535
Public Agency
Alameda County Flood Control and Water Conservation District
Document Title
Emergency Estudillo Canal (Zone 2 Line A) Channel Wall Temporary Stabilization, Between I-880 Freeway and Fargo Avenue, in San Leandro, Alameda County.
Document Type
NOE - Notice of Exemption
Received
Posted
2/23/2023
Document Description
The Alameda County Flood Control and Water Conservation District (District) owns and maintains Estudillo Canal (also known as Zone 2 Line A). The Estudillo Canal was constructed in the early 1960s. Much of the existing channel is concrete lined with either inclined or vertical concrete channel walls and bottom. During heavy rains on December 31, 2022, an approximately 170 foot section of vertical concrete channel wall, along the west side of the channel, collapsed unexpectedly just downstream of Manor Boulevard behind the backyards of 15008, 15016, 15024, and 15032 Crosby Street. Heavy rains continued on January 1, 2023, in which an approximately 90 foot section of vertical concrete channel wall, along the west side of the channel, collapsed unexpectedly behind the backyards of 15072, 15080 and 15092 Crosby Street. Between rain storm events, the District’s maintenance and operations staff removed fallen loose debris to minimize channel blockage and installed visqueen plastic sheets weight down by sandbags to temporarily minimize further erosion of exposed banks in the backyards of several homes. Additional emergency measure will need to be taken as soon as practicable after the series of storm events. The proposed emergency channel wall stabilization includes fabrication of steel support brackets to be fastened to the vertical channel walls and connected to the temporary steel struts to be installed above the top of channel wall, along the portions of existing vertical concrete channel walls experiencing leaning condition. The implementation of these temporary support bracings would minimize further catastrophic vertical channel wall failure.
Contact Information
Name
James Yoo
Agency Name
Alameda County Flood Control District
Job Title
Associate Environmental Compliance Specialist
Contact Types
Lead/Public Agency
Phone
Email
Location
Cities
San Leandro
Counties
Alameda
Regions
Citywide, Unincorporated
Cross Streets
Between Fargo Ave and the I-880 Freeway in San Leandro, Alameda County.
Zip
94577
Notice of Exemption
Exempt Status
Statutory Exemption
Type, Section or Code
SEC. 15269, Emergency Services Act Sections 855 (b) and 8625 of the California Government
Reasons for Exemption
These projects are categorically exempt by specific provisions of the California Environmental Quality Act as described proclaimed by the Governor pursuant to California Emergency Services Act Sections 855 (b) and 8625 of the California Government code and Emergency Service proclaimed, under Title 2, Section 2.118.110 of the Administrative Code of the County of Alameda, the existence or threatened existence of a local emergency when said County is affected or likely be affected by a public calamity and the County Board of Supervisor is not in session.
County Clerk
Alameda
Attachments
Notice of Exemption
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