3-306.A. Construction or Installation Authorized. Nothing in this Title shall be construed to prevent the authorized construction or installation, in any zone district, of a public utility facility or structure necessary for the transmission of commodities or services of a utility company including mains, transmission and distribution lines, substations and exchanges. The storage, maintenance and business facilities of public utilities shall be restricted to their zone districts in which they are listed as permitted uses or uses permitted on review.

3-306.B. New Lines To Be Underground. All new electric, telephone, and cable television utility lines, including main transmission, distribution, and building service lines, shall be located underground. Proposed new utility lines shall be reviewed by the Public Works Department prior to the issuance of a building permit. Upon modification, reconstruction, or repair or a building that exceeds twenty five percent (25%) of the value of the building, utility lines existing on the building lot and serving the building shall be relocated underground.

3-306.C. Depth. No underground electric lines installed in any public right of way shall be less than three feet (3') below finished grade. The Public Works Department may require greater burial depths if, as determined by the director, such burial depths are required to protect the safety of persons or property.

3-306.D. Excavation Permit Required. For any excavation within a public right-of-way or public easement for utility installation or repair, or surface improvements, an excavation permit issued by the Director of Public Works or his/her designee shall be obtained prior to commencement of work. Prior to any work, all contractors excavating in public rights-of-way may be required to post a bond or other financial security in an amount deemed necessary by the Public Works Department, such bond or security to warrant all surface or other repairs for a period of time as determined by the Public Works Department.