Dams  |  Highways  |  Tunnel Constructions Drinking Water and Wastewater Mains Treatment Karacaoren II. Dam, Energy Tunnel and H.E.P.P. Karacaoren Water Intake Structure Esen II. H.E.P.P. Esen Settlement Basin Energy Tunnel Esen II. Concrete Dam, Energy Tunnel and H.E.P.P. Pressure Pipeline Penstock Pipeline Spillway Structure and Weir Gates   Koycegiz Dalyan Highway Koycegiz Dalyan Highway Fethiye - Kalkan II. Phase Highway Adana Seyhan Lake East Crossing Adana Seyhan Lake West Crossing Oman - Thumrait Highway Construction Oman - Thumrait Highway Construction Oman - Thumrait Highway Construction     Oymapinar Dam Diversion Tunnel, Access Roads and Road Tunnels Oymapinar Dam Access Road Tunnels Petkim Aliaga Plant Water Supply Tunnel Izmir Cumhuriyet Dia 2.8m Pressure Tunnel Izmir Bayrakli Dia 2.8m Pressure Tunnel Adana Water Supply System Pressure Tunnels