Sediment material potential of Bone River as a prevention of silting and flood of Bone River estuary, Gorontalo

Abstract

Bone River Estuary acts as a connecting lane between the three rivers (Bolango River, Bone River, and Tamalate River) with Tomini Bay. There is a port activity of goods located right on the river estuary, which is potentially disrupted due to the silting and can cause flood. This situation will undoubtedly disrupt port transportation routes and affect the economic condition of Gorontalo. The aim of this research is to identify the potential of sediment utilization at the downstream of the Bone River as an effort to prevent siltation at the estuary of river Bone, Gorontalo and to prevent flood. The method used in this research is field observation which includes observation of the morphological condition of research location and sampling. Samples will then be processed by means of sieving, separation, and classification of Sphericity sediment material by referring to zoning classification and Sneed and Folk classification. The result of histogram data showed that the sediment material was dominated by coarse sand size and grain size distribution dominated by coarse sand with size of phi is 0, on sediment data showed generally very leptokurtic with skewed skill or highly skewed.

Distribution and Characteristic Sediment Material of Watershed Deli River-Sumatera, Indonesia

“…Naturally, the river will accommodate sediment with water, starting from the upstream, and sediment will be transported from one place to another gradually which is influenced by the energy of the transport currents and is deposited when the work energy is reduced or lost [8], [9], [10], [11], [12], so that it will form sediment in the river channel, thus triggering the occurrence of shallow rivers, disrupting the working system of canals and other infrastructure. [3], [13], [14]. The transportation process usually occurs gradually and continuously to the sea.…”