Utility Codes

OHIO 811

Utility Location & Coordination Council Uniform Color Code

ColorMeaning
RedElectric power lines, cables, conduit and lighting cables
YellowGas, oil, steam, petroleum or gaseous materials
OrangeCommunications, alarm or signal lines, cables or conduit
BlueWater, irrigation and slurry lines
GreenSewers and drain lines
PinkTemporary survey marks
WhiteProposed excavation
Diagram demonstrating utility lines and Uniform Color Code