The proposals call for a large canal or tunnel being excavated of about 55 to 100 kilometres (34 to 62 mi) depending on the route chosen to the Mediterranean Sea to bring seawater into the area.[2] Or otherwise a 320 kilometre (200 mile) pipeline north-east to the freshwater Nile River south of Rosetta.[3][4] In comparison, Egypt's Suez Canal is currently 193 kilometres in length.[5] By balancing the inflow and evaporation, the lake's water level can be held constant. Several proposed lake levels are 70, 60 and 50 meters below sea level.