Use these flash cards to learn the color coding for locating underground utilities.
There are 6 flash cards in this set (1 page to print.)
1. Print out the cards.
2. Cut along the dashed lines.
3. Fold along the solid lines.
Sample flash cards in this set:
|Red||electric power lines, cables, conduit, and lighting cables|
|Orange||telecommunication, alarm or signal lines, cables, or conduit|
|Yellow||natural gas, oil, steam, petroleum, or other gaseous or flammable material|
|Green||sewers and drain lines|
|White||proposed excavation limits or route|