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64. EXISTING PAVEMENT FRONTING THE DEVELOPMENT: The applicant's California licensed civil engineer shall examine the structural section of the existing street(s) fronting the development and submit a summary with the first submittal of the improvement plans. The summary shall include the civil engineer's findings and an opinion of the sufficiency of the existing pavement to support the post-project traffic demand. If the opinion concludes the existing pavement is insufficient to support the post-project traffic demand, the civil engineer shall submit a recommendation in the summary to reconstruct or rehabilitate the existing pavement. The recommendation shall be subject to the review and approval of the Director of Engineering/City Engineer. If the opinion concludes the existing pavement is sufficient, the applicant shall apply a slurry seal treatment on Alisal Street and Westbridge Lane after the completion of utility undergrounding and frontage improvements and prior to the City Council's acceptance of public improvements. (Address this condition prior to acceptance of improvements) 65. CURB AND GUTTER: The applicant shall construct vertical Portland cement concrete (PCC) curb and gutter on proposed public streets within this development in compliance with the City Standard Specifications and Details in effect at the time of the issuance of permits, unless otherwise approved by the Director of Engineering/City Engineer. (Address this condition prior to improvement plan approval) 66. RETAINING WALLS: All retaining walls along the street shall be located behind the public service easement (PSE), unless otherwise approved by the Director of Engineering/City Engineer. All retaining walls with a minimum height of 4 feet, measured from the bottom of the footing to the finished grade at the top of the wall, and all retaining walls with a surcharge shall be designed by a California licensed civil or structural engineer. (Address this condition prior to improvement plan approval) 67. STREET LONGITUDINAL SLOPE: The minimum grade for the gutter flowline on public and private streets shall be 0.75 percent, unless otherwise approved by the Director of Engineering/City Engineer. (Address this condition prior to improvement plan approval) 68. SUBDRAINS: The curb and gutter along the proposed public and private streets shall have a subdrain installed at either the back of the curb or lip of gutter in compliance with the City Standard Specifications and Details in effect at the time of issuance of permits. Sub-drains shall be connected to the storm drain system or drained by other means acceptable to the Director of Engineering/City Engineer. (Address this condition prior to improvement plan approval) 69. EXISTING SUBDRAINS: All subdrains to be installed as part of the landslide remediation effort shall have cleanouts installed at the upstream end of the pipe PUD-138 and VTM 8616 Planning Commission Page 18 of 30