This project included 12100 meters steel pipeline with 1200mm diameter, for transference of raw water from Taham dam to Zanjan water treatment plant. Excavation amount was about 25000m³, 30 percent of it was in rocky grounds. Also there was construction of 12 kilometers of first level R.O.W. Pipes before installation should be coated by coaltar material from outer side and lining concrete at inner side.