Aswan Dam the river has been improved, both upstream and downstream of the dam. Sailing along the Nile is a favorite tourism activity, which is mainly done during the winter when the natural flow of the Nile would have been too low to allow navigation of cruise ships. A new fishing industry has been created around Lake Nasser, though it is struggling due to its distance from any significant markets. The annual production was about 35 000 tons in the mid-1990s. Factories for the fishing industry and packaging have been set up near the Lake. The dams also protected Egypt from the
Lock and Dam No. 19 by a gantry crane that travels on the service bridge above the dam. At the time it was completed it was second in length only to the Aswan Low Dam on the Nile River. Construction began in 1910 and when completed in 1913 it was the largest capacity, single powerhouse electricity generating plant in the world. The Power House and spillways are owned and operated by Ameren Missouri and has a 142 MW capacity. The powerhouse contains 15 generators, originally designed to produce 25 Hz instead of the 60 Hz alternating current used today. Keokuk and Hamilton Water Power landed