The Public Works Department shall have the following duties insofar as the City performs these functions by its own forces (and not by contract):
A. To construct, improve, maintain, and clean streets (including alleys and other public ways), bridges, and sidewalks; to install and maintain street lights, traffic- control signs, markings, signals, and devices; to erect and maintain street name signs; and to supervise the use of streets by privately owned utilities;
B. To maintain and operate the City water system;
C. To construct, improve, maintain, and operate storm sewers;
D. To maintain all buildings and grounds used by the City;
E. To maintain and operate all parks, playgrounds, swimming pools, and other recreational facilities and programs operated by the City;
F. To collect and dispose of garbage and other refuse whenever the City provides this service by its own forces (rather than by contract);
G. To maintain City owned motor equipment; and
H. To perform such other functions relating to the maintenance, repair, improvement, and operation of the physical facilities owned or used by the City government as the City Manager may prescribe consistent with law and ordinance. (2007 Code § 1-46)