Article 4 — Road Standards

For the purposes of this division, all principal thoroughfares and arterials shall be constructed, improved, and dedications made therefor in accordance with the following standards (insofar as this is practicable and will not create an undue hardship) and with the county major roads plan, a portion of the circulation element of the General Plan of Contra Costa County. (CCCC § 1006-2.1002)

Principal thoroughfares, Type A, shall be dedicated to a width of one hundred ten (110) feet, with seventy- two (72) feet of roadway, twenty (20) feet of sidewalk area and (18) eighteen feet dividing strip. Each one- half of the road shall consist of nine feet of dividing strip, thirty-six (36) feet of paved roadway, curbs and gutters, and ten feet of sidewalk area with at least four and five-tenths feet thereof paved. (CCCC § 1006-2.1004)

Principal thoroughfares, Type B, shall be dedicated to a width of one hundred (100) feet, with sixty-four (64) feet roadway, twenty (20) feet of sidewalk area and sixteen (16) feet of dividing strip. Each one-half of the road shall consist of eight feet of dividing strip, thirty-two (32) feet of paved roadway, curbs and gutters, ten feet of sidewalk area with at least four and five-tenths feet thereof paved. (CCCC § 1006-2.1006)

General thoroughfares shall be dedicated to a width of eighty-four (84) feet, with sixty-four (64) feet of roadway, and twenty (20) feet of sidewalk area. Each one-half of the road shall consist of thirty-two (32) feet of paved roadway, curbs and gutters, and ten feet of sidewalk area with at least four and five-tenths feet thereof paved. (CCCC § 1006-2.1008)

General arterials shall be dedicated to a width of sixty (60) feet, with forty (40) feet of roadway, and twenty (20) feet of sidewalk area. Each one-half of the road shall consist of twenty (20) feet of paved roadway, curbs and gutters, and ten feet of sidewalk area with at least four and five-tenths feet thereof paved. (CCCC § 1006-2.1010)

Industrial arterials shall be dedicated to a width of sixty-eight (68) feet, with forty-eight (48) feet of roadway, and twenty (20) feet of sidewalk area. Each one-half of the road shall consist of twenty-four (24) feet of paved roadway, curbs and gutters, and ten feet of sidewalk area with at least four and five-tenths feet thereof paved. (CCCC § 1006-2.1012)

Each intersection involving either a thoroughfare or arterial road shall be dedicated so as to provide a thirty (30) foot curved corner radius at the intersection of such roads, which shall be improved in accordance with the standards for such road set forth in this division. (CCCC § 1006-2.1014)

The property owner shall make an agreement with the city on the road improvements to be constructed by him or her, including curb, gutter, sidewalk, and the necessary structural pavement section as thick as required by Chapter 16.52 and to a maximum width of twenty (20) feet from curb face for each side of the roadway. Necessary longitudinal storm drainage shall be considered as a part of the improvements. Street lighting where reasonably necessary shall be considered as a part of the improvements. (CCCC § 1006-2.1016)

All improvements required by this division shall be placed and constructed in accordance with Chapter