470 UTILITIES ON STRUCTURES

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470.01 DESCRIPTION
Place utility markers to identify utilities when they are newly installed, replaced, or relocated. Place the identification markers as specified herein and as approved.
470.02 MATERIALS
Utility Facility Identification.
(a) Any new or replacement utility facility installed shall include an identification marker with the first 50 ft of the facility, the last 50 ft of the facility, and at intervals of 100 ft in-between.
(1) Adjust the spacing to have one marker in every bay bounded by beams and diaphragms through which the utility passes.
(b) The marker shall consist of decals or stenciling onto the pipe or carrier according to industry standard color coding with high quality black or white print.
(1) Provide lettering height of 1/3 the pipe diameter, but not smaller than 1 in. nor larger than 4 in.
(2) The markers shall include the name of the utility and a description of the contents including pressure, voltage, and any other pertinent information required by industry standards.
LABEL BACKGROUND COLOR / LETTERING COLOR CONTENT
RED Electrical Power
YELLOW Gas, Oil Steam, Petroleum or Gaseous Materials
ORANGE Communication, CATV, Alarm, or Signal
BLUE Potable Water
PURPLE Reclaimed Water, Irrigation, or Slurry
GREEN Sewer and Storm Drain
Figure 470.02(b) - Industry Standard Color Coding
470.03 CONSTRUCTION
Place identification markers within the first and last 50 ft of the structure, and at intervals not to exceed 100 ft.
Ensure that the surface to receive the marker is properly cleaned and prepared prior to the application. Orient the markings for best visibility.
470.04 MEASUREMENT AND PAYMENT
The application of utility markers on structures will not be measured but the cost will be incidental to the pertinent items.