Storm Damage Repair, Between 22435 and 22438 Moyers Street, in Castro Valley, Alameda County.


SCH Number
Public Agency
Alameda County Public Works Agency (ACPWA)
Document Title
Storm Damage Repair, Between 22435 and 22438 Moyers Street, in Castro Valley, Alameda County.
Document Type
NOE - Notice of Exemption
Document Description
During the 2022-2023 winter storms, a storm drain manhole located between 22435 and 22438 Moyers Street in Castro Valley failed. The manhole that connects the existing 12” corrugated metal pipe (CMP) also failed, resulting in the washing out of a portion of the CMP pipe. The washout of the CMP pipe further caused the manhole structure to sink and eventually collapse. In preparation for the upcoming winter season, the County performed a temporary repair by reconnecting the damaged 12” storm drain pipe to the existing concrete outfall structure. The County plans to remove this temporary connection and proceed with a permanent repair project in the summer of 2024. This permanent repair includes the removal of temporary storm drain pipe connections, the reconstruction of the storm drain manhole, the reconstruction of approximately 23 linear feet of 12” CMP, and the stabilization of the channel bank along the pipe alignment with erosion control fabric and approximately 11 cubic yards of import fill material.

Contact Information

James Yoo
Agency Name
Alameda County Public Works Agency
Job Title
Associate Environmental Compliance Specialist
Contact Types
Lead/Public Agency


Unincorporated Castro Valley
Cross Streets
Unincorporated Castro Valley Area

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Sec 15301, Existing Facilities
Reasons for Exemption
The proposed project constitutes repair, maintenance, and minor alterations to existing public facilities involving negligible expansion of use.
County Clerk


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