Powers and Duties in General. The board of public works elected under section 3-2-3 shall be responsible for organizing and administering the following functions: construction and maintenance, highways, water and sewer systems, tree care, and parks, including landscaping and ground maintenance of all town buildings and property, and such other public works and related functions as may from time to time be vested in it through the General Laws, this charter, by-law or vote of the town meeting; and to this end the board shall, following each annual town election: (a) select from its membership a chairman, a vice-chairman, and a clerk for the ensuing year; and (b) be administratively organized into the following divisions: highway, water, trees, and cemeteries and parks. The board of public works, by a majority vote of its full membership, shall appoint a superintendent of public works for an initial term of three years and annually thereafter and shall fix his compensation within limits of an appropriation made for that purpose. The superintendent shall: (a) be especially qualified by education, training, and experience to perform the duties of the office and have such other qualifications as may be determined by by-law; (b) exercise and perform, under the board's supervision and direction, those public works functions for which the board is responsible; and (c) appoint, subject to approval by the board, such assistants, agents, and other employees as the exercise and performance of his powers, rights, and duties may require. The superintendent shall give the town a surety bond for the faithful performance of his duties in such sum and upon such conditions as the board may require; shall keep the board fully informed as to the public works needs of the town; shall keep a full and complete record of his operations; shall render to the board, as often as it may require, a full report thereon; and annually or more often shall prepare a synopsis of such reports for publication.