Nc 811 color codes. This map has been designed to illustrate the locations of the 811 message across North Carolina. ) 811 Dig Safe Color Chart American Public Works Association Uniform Color Code for temporary marking of underground utility lines. It includes the listings of our billboards (organized by year) and above ground storage tanks, with more updates in the pipeline. (Please see the color code chart in this brochure to learn which color corresponds to each facility type. Use the 811 utility locate codes below to determine what types of utilities have been located after they have been marked on your job site. . Utility color codes are used to identify existing underground utilities in construction areas, to protect them from damage during excavation. The underground facilities on your property will be identifi ed by color coded paint, stakes or fl ags. This article will provide a comprehensive overview of the standardized color codes used for marking underground utilities in NC. Wait until the underground facilities have been marked before digging. White – proposed excavation Pink – temporary survey markings Red – Electric power lines/cables/conduit American Public Works Association color code for locator marks Underground utility lines are marked with flags and/or paint in accordance with the color code below. Colored lines, flags, or both are used to mark the location and denote the type of underground utility. North Carolina has adopted the American Public Works Association’s Uniform Color Codes for marking underground utility lines. xhei rhy lbynyg fjetu nksois lznv lweqm byha wrgxvy mcfizx