Every civil engineering firm uses custom plan symbols in their drawings so it is important to check the drawing legend. The symbols below come from the US National CAD Standard or are typical symbols we have seen in civil sets.
You may also be interested in our article that covers civil engineering abbreviations.
Jump directly to the line styles or to the plan symbols.
Civil Engineering Line Styles
Property Line
Limit of Work Line
Fence Lines
Sanitary Sewer Line
Storm Drain Line
Water Line
Domestic Water Line
Fire Protection Line
Chilled Water Line
Steam Line
Natural Gas Line
Fire Alarm Line
Electrical Line
Telecommunications Line
Cable TV Line
Overhead Wire Line
Civil Engineering Plan Symbols
Tree Line
Topographic Contour Line
Boring Indicator
Survey Monument
Spot Elevation
Top/Bottom of Curb
Top/Bottom of Wall
Catch Basin
Cleanout
Sanitary Sewer Manhole
Storm Drain Manhole
Water Manhole
Water Handhole
Water Meter
Hose Hydrant
Wall Mounted Hose Hydrant
Fire Hydrant
Steam Manhole
Natural Gas Manhole
Natural Gas Meter
Natural Gas Shutoff
Valve
Electrical Manhole
Electrical Handhole
Electrical Meter
Electrical Switch or Shutoff
Telecommunications Manhole
Telecommunications Handhole
