International Commission on Irrigation & Drainage Commission Interationale des Irrigation et du Drainage
| 4152. Adit : 1- Tunnel driven from the bottom or some distance down shafts or wells sunk in fissured and porous rocks. They intercept the water from the water-bearing fissures and lead it to the sump or well. 2 - See 2680. | ||
| SEE: Adit, | ||
