FIGURE IV - 1
Note 1: The street structural section shall be determined from "R" values obtained from materials gathered at the level of the proposed subgrade using the State of California Division of Highways design method for crushed aggregate base. Crushed aggregate base shall conform to section 200-2.2 of the latest edition of the Standard Specifications for Public Works Construction (Green Book). In no case shall the minimum street section be less than 3 inches asphalt concrete and 4 inches of aggregate base. If deep lift asphalt is used the minimum section shall be 7 inches of asphalt.
*** See Standard Street Sections (pages IV-30 thru IV-33)
Up to 8% with special approval of the City Engineer
Up to 14% with special approval of the City Engineer
Street / ClassificationR/WCurb WidthR/W Cut OffCurb RadiusTISection (See note 1)Max. Grade %Min Grade %Min Radius Valley Min.Design Speed
Major Arterials******27' x 27'35'105"AC/CAB6**0.4150060
Secondary Arterials******27' x 27'35'94"AC/CAB6**0.4100060
IND. / COMM. Collector76/846427' x 27'35'94"AC/CAB6*0.4600
IND. / COMM. (minor / CDS)664627' x 27'35'94"AC/CAB10*0.4300
Res Collector644013' x 13'25'53"AC/CAB10*0.4300
Res. Local603613' x 13'25'53"AC/CAB10*0.4250
Res Cul-de-sac583413' x 13'25'43"AC/CAB10*0.4250
Frontage Road544013' x 13'25'73"AC/CAB10*0.4250
Alley303010' x 10'15'43"AC/CAB10*
STREET DESIGN PARAMETERS