|
Abstract:
|
Gung River is one of the rivers in Tegal Kabupaten. Gung River is sourced from Mount Slamet and empties into the Java Sea. Trench River Gung, especially in river segments around the location of Tyroll Weir Danawarih is quite wide even almost the entire width of the valley is a river trough. In order to fulfill irrigation needs, in 1912 the Dutch Government built the Danawarih Weir on the Gung River. Initially the Danawarih Weir was planned to irrigate an area of 12,804 ha, with the planned discharge taking 12.0 m3 / second. And by using a fixed type of lighthouse weir without building energy absorbers. In the early 1970s, Weir type Weir Drop were severely damaged where the body of the left weir was broken and destroyed by the flow. Because the existence of the weir is still needed, a new weir is formed in the form of a lower filter weir. Furthermore, the lower filter weir began to be built in 1972. In 1992 filter repairs were held considering that most of the rack rods had been released. Even though rehabilitation has been carried out, the condition of Danawarih Weir is currently experiencing several problems. Finally in 2015 Rehabilitation of Danawarih Weir was carried out by adding intake doors and divider doors to irrigate rice fields and increase the discharge of water entering the irrigation canal. |