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P18-0078, P18-0079, P18-0081, PUD-130, and Tract 8569 PC-2026-09, April 22, 2026 <br /> <br />(CA MUTCD), latest editions. The City also references design standards from “A Policy <br />on Geometric Design of Highways and Streets” (latest edition) as published by the <br />American Association of State Highway and Transportation Officials (AASHTO). Any <br />deviations from standards must be approved by the City Engineer. (Address <br />this condition prior to plan approval) <br /> <br />49. HOT-MIX ASPHALT PAVEMENT DESIGN STANDARDS: Public roadways and parking <br />lots shall be surfaced with hot-mix asphalt (HMA) as designed according to Chapter 630 <br />“Flexible Pavement” of the Caltrans Highway Design Manual, unless otherwise <br />approved by the City Engineer. The following minimum standards shall apply to the <br />design: <br /> <br />a. Minimum design life = 20-years <br /> <br />b. R-value of the underlying soil shall be R = 5 minimum. A higher R-value will be <br />allowed only through analytic testing by a licensed geotechnical engineer or <br />engineering geologist. <br /> <br />c. Asphalt Binder classification shall be PG 64-10. <br /> <br />d. Minimum Traffic Index (TI) shall be as follows. A lower TI will be considered only <br />when justified by analytic calculations performed by a licensed civil or traffic <br />engineer according to the Caltrans Highway Design Manual Chapter 613. <br />i. Public parking lot: TImin = 4.5 <br />ii. Local Street: TImin = 5.0 <br />iii. Residential collector street: TImin = 6.0 <br />iv. Collector street: TImin = 7.0 <br />v. Arterial street: TImin = 9.0 <br /> <br />e. Minimum thickness of HMA layer = 3 inches <br /> <br />f. Minimum thickness of total structural section = 8 inches (regardless of R-value). <br />(Address this condition prior to plan approval). <br /> <br />50. HYDROLOGIC AND HYDRAULIC CALCULATIONS: The City’s storm drainage network <br />has been designed in accordance with the Alameda County Hydrology and Hydraulics <br />Manual published by the Alameda County Flood Control & Water Conservation District. <br />Said manual is available for download at: https://acfloodcontrol.org/the-work-we-do/the- <br />work-we-do-hydrology-manual/. <br /> <br />The City is located in Zone 7, and its storm drain pipe network is considered a <br />secondary facility. Any additions or upgrades to the City’s pipe network shall be <br />designed in accordance with the manual. Calculations submitted for review/approval <br />shall be presented in a format consistent with the “Calculation Form – District Rational <br />Method” available in the manual. Said calculations shall be prepared, stamped, and <br />    <br />  <br /> <br />