Via Verdi Sinkhole Restoration Project


SCH Number
Public Agency
Fish & Game #3
Document Title
Via Verdi Sinkhole Restoration Project
Document Type
NOE - Notice of Exemption
Document Description
SAA #1600-2010-0294-3 Repair of a damaged culvert that collapsed unexpectedly, creating a sinkhole approximately 130 feet long, 30 to 50 feet in width, and approximately 30 feet in depth and requiring closure of the Via Verdi roadway. Work will consist of excavation of the damaged culvert and surrounding soils, construction of approximately 160 linear feet of vertical retaining wall on each bank, to be supported by drilled steel piles and tie-backs anchored to the banks, construction of a new concrete headwall, and stabilization of the upper banks with erosion control blankets and riprap.

Contact Information

Randi Adair
Agency Name
California Department of Fish and Game
Contact Types
Lead/Public Agency


Contra Costa

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15302(c) - Class 2
Reasons for Exemption
The project involves reconstruction of an existing utility facility with no increase in capacity.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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