Section 350. Department of public works

The head of the department of
  public works shall be the director of public works. In counties adopting
  the county manager  form,  the  county  director  form  and  the  county
  president  form,  the office of county superintendent of highways and of
  county engineer, if any, is abolished  and  the  functions,  powers  and
  duties  of the office shall devolve upon the department of public works.
  Nothing in this article contained  shall  be  construed  to  impair  the
  powers of the county superintendent of highways in counties adopting the
  county  administrator  form of government, and the county superintendent
  of highways of any such county shall continue to have and  exercise  the
  functions,  powers and duties of his office as now or hereafter provided
  by law.