Via Verdi Sinkhole Restoration Project

Summary

SCH Number
2010088375
Lead Agency
Planning and Research, Office of (Office of Planning and Research)
Document Title
Via Verdi Sinkhole Restoration Project
Document Type
NOE - Notice of Exemption
Received

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
California Department of Fish and Game
P.O. Box 47
Yountville, CA 94559

(707) 944-5596

Location

Cities
Richmond
Counties
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.
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