Greenwood Bay Condominium Homeowners Association Seawall Repair Project
Summary
SCH Number
2023100291
Public Agency
California Regional Water Quality Control Board, San Francisco Bay Region 2
(RWQCB)
Document Title
Greenwood Bay Condominium Homeowners Association Seawall Repair Project
Document Type
NOE - Notice of Exemption
Received
Posted
10/10/2023
Document Description
The Project is removing, repairing, and reconstructing elements of a structurally deficient timber seawall in the Salt Works canal. The repairs include installing a new fiber-reinforced polymer (FRP) sheet-pile-wale system with tipping pile anchors, replacing the top four feet of backfill with permeable, lightweight fill, and incorporating weep holes to allow for pressure drainage behind the wall. Existing tie-rods in good condition will be reused or replaced. A vibratory hammer will be used for FRP pile installation. Elements of the existing seawall that are no longer needed will be removed following the installation of the repair elements. All work will be completed landside using excavation equipment or hand tools.
Contact Information
Name
Alicia Pisani
Agency Name
SF Bay Water Resource Control Board
Job Title
Scientific Aid
Contact Types
Lead/Public Agency
Phone
Name
Holly Garber
Agency Name
SF Bay Water Resource Control Board
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Cities
Mill Valley, Tiburon
Counties
Marin
Regions
San Francisco Bay Area, Unincorporated
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
15301 – Existing Facilities, Class 1
Reasons for Exemption
The new seawall has no expansion of original use, and the seawall directly replaces an existing structure located on the same site.
Exempt Status
Categorical Exemption
Type, Section or Code
15302 – Replacement or Reconstruction, Class 2
Reasons for Exemption
The new seawall has no expansion of original use, and the seawall directly replaces an existing structure located on the same site.
County Clerk
Marin
Attachments
Notice of Exemption
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