BOARD AGENDA MEMORANDUM
SUBJECT:
Title
Adopt a Resolution Adopting the Final Mitigated Negative Declaration and Mitigation Monitoring and Reporting Program and Approve the Calabazas Creek Bank Rehabilitation Project (Project), Project No. 62084001 (Task 5183) (Cupertino) (District 5).
End
RECOMMENDATION:
Recommendation
A. Consider the environmental effects of the Calabazas Creek Bank Rehabilitation Project (Project) as discussed in the Final Mitigated Negative Declaration;
B. Adopt the Resolution ADOPTING THE FINAL MITIGATED NEGATIVE DECLARATION AND MITIGATION MONITORING AND REPORTING PROGRAM FOR THE CALABAZAS CREEK BANK REHABILITATION PROJECT; and
C. Approve the Project.
Body
SUMMARY:
Background and Project Description
Santa Clara Valley Water District (Valley Water) is responsible for maintenance of most of Calabazas Creek, which extends approximately 13.3 miles from the confluence with the Guadalupe Slough on the San Francisco Bay upstream to the Saratoga foothills. The total drainage area of Calabazas Creek is 22.7 square miles, over 90% of which is urbanized. Consequently, maintenance of the creek channel is necessary to support the creek's function as a flood protection facility, to prevent damage to adjacent properties from erosion, and to minimize impacts to the natural creek habitat (e.g. loss of habitat, reduced water quality).
The Project reach is located between Miller Avenue and Bollinger Avenue and is a deeply incised water course with little distance between top of the bank and the residential fence line, and the reach experiences bank erosion. Repairs in the Project reach were last completed in 2011, as part of Valley Water's Calabazas Creek Flood Protection Project along 3.7 miles of Calabazas Creek from Miller Avenue to Wardell Road.
During the recent periodic inspections performed by Watersheds Operation & Maintenance staff, deficiencies were observed along the creek in the Project area including toe erosion, bank failure, and s...
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