Article 3. Extension Of County Highways Through Cities of California Streets And Highways Code >> Division 2. >> Chapter 9. >> Article 3.

The board of supervisors of any county may, by a resolution adopted by a four-fifths vote of its members, declare any highway in the county lying in whole or in part within a city to be a county highway for one or more of the following purposes: acquisition of rights-of-way, construction, maintenance, improvement, or repair.

A copy of such resolution shall be forwarded to the governing body of the city within which is included any portion of the highway. Such governing body may consent to the establishment of such included portion as a part of the county highway. Upon the taking effect of an ordinance or resolution containing such consent, such portion of such highway shall become a county highway for one or more of the following purposes: acquisition of rights-of-way, construction, maintenance, improvement, or repair.

Thereafter the board of supervisors of the county may acquire rights-of-way for, construct, maintain, improve, or repair such highway in the same manner as other county highways, and may pay for such work out of one or more of the following:
  (a) The county general fund.
  (b) The road fund.
  (c) The proceeds of any county bond issue voted for the purpose of laying out, constructing, maintaining, improving or repairing county highways.
  (d) Any other fund available for such purposes.

Nothing contained in this article shall limit in any manner the police power of any city with reference to any such street or portion of street improved under the provisions of this article.

At any time after all or a portion of a city street becomes a county highway, as provided in this article, and all improvements commenced by the county, or its agents thereon, have been fully completed, the board of supervisors of such county may adopt a resolution declaring that all or any portion of such street is no longer a county highway. Ten days after the filing of such resolution with the clerk of the city within which the street lies, such street, or the portion thereof described in the resolution, shall cease to be a county highway.

Whenever county bonds are voted or a special tax is levied for paving a county highway, and the natural course of such highway runs into or through any city, the board of supervisors shall pave within such city that portion of the highway which is designated by the chief executive of the city and the county supervisor in whose district such portion is located. Such highway portion shall be constructed to standards equal to those of the highway approaching such city. If such chief executive and such supervisor do not agree as to what street will be thus designated, then the chairman of the commission shall designate the street and his judgment shall be final and conclusive.

Whenever a city permits a county to use the city streets and highways for the purpose of constructing and maintaining any highway or boulevard as part of a county system of roads pursuant to Section 1850, the board of supervisors may construct and maintain such bridge or bridges on such highway or boulevard within the city as it deems necessary, and may macadamize, pave, curb, or gutter, such highway or boulevard in such manner as it determines; and the cost or expense thereof shall be paid from the general fund of the county.