канавка, траншея, кювет
- aerobic ditch
- collecting ditch
- cross ditch
- diversion ditch
- drain ditch
- field ditch
- foundation ditch
- interception ditch
- main drainage ditch
- offtake ditch
- outfall ditch
- oxidation ditch
- pipeline ditch
- roadside ditch
- side ditch
- supply ditch
- surface ditch
- V-shaped ditch