Vineyard Valley Bank Stabilization and Bridge Improvements Project
Summary
SCH Number
2023110308
Public Agency
California Regional Water Quality Control Board, San Francisco Bay Region 2
(RWQCB)
Document Title
Vineyard Valley Bank Stabilization and Bridge Improvements Project
Document Type
NOE - Notice of Exemption
Received
Posted
11/13/2023
Document Description
To repair and stabilize a 37 linear feet section of the Sulphur Creek bank with a failed concrete masonry unit block (CMU) wall and improve two existing one-way vehicle bridges and one pedestrian bridge at the Vineyard Valley Mobile Home Park. Failing CMU blocks on the left bank will be replaced with 12-inch D50 Rock Slope Protection, with granular filter or bedding behind and on the native soil. An undermined red willow tree will be removed to help stabilize the bank and beneficially reused to re-vegetate the bank. A mid-channel bar has developed and increased in size due to winter flow deposition, and the bar’s sediments will be beneficially reused onsite or hauled offsite. On the right bank, 35 linear feet will be stabilized with 9-inch horizontal vegetated soil lifts and planted with willow poles harvested onsite.
Contact Information
Name
Erin Fairley
Agency Name
SF Bay Water Board - RB2
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency
Phone
Name
Alicia L. Pisani
Agency Name
SF Bay Water Board - RB2
Job Title
Scientific Aid
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Cities
St. Helena
Counties
Napa
Regions
San Francisco Bay Area
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 2, C; Cal. Code Regs. tit. 14 § 15302
Reasons for Exemption
The Project’s reconstructed facilities will not expand the original facilities’ purposes, uses, and capacities.
County Clerk
Napa
Attachments
Notice of Exemption
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