BANJARSARI PERMANENT DAM PLANNING, BARENG VILLAGE, BARENG DISTRICT, JOMBANG REGENCY.

The Banjarsari Permanent Weir is located in Bareng Village, Bareng District, Regency Jombang, is the use of water supplies from the Gogor River for supplies raw water, especially for the benefit of the agricultural sector with a large area 132 Ha rice field. The step in planning this weir is to carry out an analysis hydrology to determine the planned flood discharge. Flood discharge calculation results
The plan is then used for hydraulic and structural analysis of the weir. After weir construction planning, weir stability control is carried out overturning, shearing, eccentricity and soil bearing capacity. This research uses data secondary in the form of daily rainfall data for 10 years from 3 stations, Based on the results of the analysis and planning of the Banjarsari Dam, the discharge was obtained
Q50 design flood is 286.41 m3 /sec. Weir dimensions with effective width the weir is 21 meters, the round type lighthouse is 6.3 meters high and the USBR Type III stilling pool with a total length of 16 meters, results of stability analysis with loads and moment that acts on the weir, it can be seen that the weir is safe
against overturning, the weir is safe against sliding, and the weir is safe against falling.
Keywords: Planning, Fixed Dam, Flood Discharge.