12.20A.110 Installation on roadway bridges and structures.

A.    Attachment of utility lines to a roadway structure (including bridges) may be allowed where such attachment conforms to sound engineering considerations for preserving the roadway structure and its safe operation, maintenance and appearance. The attachment shall be in accordance with the following:

(1)    Each proposed attachment shall be considered on its individual merits and separately designed so as to be compatible with the appearance of the structure.

(2)    Attachment of a utility shall not be considered unless the structure in question is of a design that is adequate to support the additional load and to accommodate the utility facility without compromise of highway features, including reasonable ease of maintenance.

(3)    Utility positioning which would inhibit access to any portion of the structure for painting, repair or maintenance shall not be allowed.

(4)    Manholes and other utility access panels shall not be permitted within the roadway portion of the structure.

(5)    Attachment on a structure of a pipeline carrying a hazardous transmittant shall be avoided where practicable. Approval of such attachments shall be subject to the county’s concurrence that any reasonable alternative would not be cost effective or practical.

(6)    The utility attachment shall not reduce the under or over clearance of a structure where such clearance is critical.

(7)    The preferred location for utility attachments is beneath the structure’s deck or floor, between the girders or beams within a cell and at an elevation above low superstructure steel or masonry. Attachment to the outside of a structure should be avoided where there are reasonable alternatives.

(8)    Utility mountings shall be of a type that will not create noise resulting from vibration.

(9)    The hole created in a structure abutment shall be sleeved, shall be of the minimum size necessary to accommodate the utility line, and shall be sealed to prevent any leakage of water or backfill material.

(10)    The utility line back of the abutment shall curve or angle out to align outside the roadbed area in as short a distance as is operationally practicable.

(11)    Communication and electrical power line attachments shall be suitably insulated, grounded and carried in protective conduit or pipe from point of exit from the ground to reentry. Carrier pipe and casing pipe shall be suitably insulated from electric power line attachments.

(12)    The utility shall be responsible for any restoration or repair of any portion of a structure or roadway disturbed by the utility installation or use. (Sec. 1 of Ord. 1999-11-15)