Flap Gate and Outfall Structure Rehabilitation at Eden Landing Pump Station (Zone 3A, Line A), Hayward, Alameda County, California.
Summary
SCH Number
2023020522
Public Agency
Alameda County Flood Control and Water Conservation District
Document Title
Flap Gate and Outfall Structure Rehabilitation at Eden Landing Pump Station (Zone 3A, Line A), Hayward, Alameda County, California.
Document Type
NOE - Notice of Exemption
Received
Posted
2/22/2023
Document Description
The Alameda County Flood Control and Water Conservation District (District) owns and maintains the Eden Landing Pump Station. Eden Landing Pump Station requires maintenance repair and replacement of the existing flap gate and outfall structure as part of the maintenance process. This would also require rehabilitating and repairing an existing concrete outfall structure that is connected to the pump station outfall. Spalled concrete on existing concrete headwall and wingwalls will be removed and patched with new concrete. The new concrete headwall and wingwalls will be constructed in front of the existing headwall and wingwalls. The existing concrete apron will not be disturbed. Work will include removal and replacement of the existing 48” flap gate with a new flap gate. Work on the outfall structure and flap gates will require a temporary gravel bag cofferdam installed within a tidal zone. Most of the cofferdam will be on an existing concrete apron but portions may need to be on a rock slope protection area of the flood control channel. A flow-through plug may need to be utilized to keep the pump station discharge operational during the work. Work will be phased to take place during the summer months to minimize any impacts.
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
Hayward
Counties
Alameda
Regions
Unincorporated
Cross Streets
Take I-880 to San Mateo Bridge (Bridge 92) going West. Exit at Clawiter/Eden Landing Rd (Exit 24
Zip
94544
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Sec. 15301, Class 1: Existing Facilities
Reasons for Exemption
The proposed project constitutes repair, maintenance, and minor alteration to existing public facilities involving negligible expansion of use.
County Clerk
Alameda
Attachments
Notice of Exemption
Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. For more information, please visit OPR’s Accessibility Site.