Priority development of smalldam in Wonogiri regency

¹ Water Resources Consultant, Indonesia
² BBWS Bengawan Solo, Indonesia
³ Department of Civil Engineering, Diponegoro University, Semarang, Indonesia

^* Corresponding author: fisnu.company@gmail.com

Abstract

The province of Central Java often experiences floods during the rainy season and drought in the dry season. To support the program, BBWS Bengawan Solo participated in building some small-dams in Solo basin watershed. For this plan to be realized there needs to be a preceded study to determine the locations of potential dams. The paper aims to identify potential small-dams in the Solo River Basin, particularly in the Wonogiri District, and to determine priorities for the sequence of development. The potential of the small-dams is roughly derived from public information, topographic maps, and ground surveys. Initially, based on public information and local government officials, 39 locations of small-dams were obtained. After analyzing the topographic map and ground checking, the potential locations were cut down to 13 sites. Five small-dams will be selected as the first priority. The priority is determined based on multiple criteria, which consisted of technical criteria (topography, geology, and hydrology) and non-technical criteria (drought, economy, social and environment). Assessment method was based on the scoring system on all criteria. The result found that the five most potential small-dams in Wonogiri District are Glimbung, Gompyong, Wungu, Weru, and Waru.