Authors :
Yayuk Sri Sundari; Purwanto; Yuswal Subhy, Habir
Volume/Issue :
Volume 8 - 2023, Issue 7 - July
Google Scholar :
https://bit.ly/3TmGbDi
Scribd :
https://tinyurl.com/bddfmx54
DOI :
https://doi.org/10.5281/zenodo.8217278
Abstract :
It is hoped that the Benanga Reservoir in
Samarinda City can function as irrigation for the
surrounding community's rice fields, as a flood buffer or
controller, and also as a Local water company (PDAM)
raw water, and in the future it can become a water
tourism area for the people of Samarinda, as well as
residents outside Samarinda. The main problem facing
the current is the reservoir not being able to function as
needed due to the insufficient capacity of the reservoir
due to the large amount of sedimentation and the surface
is filled with wild water hyacinth plants. The current
condition of the existing reservoir has an area of 108
hectares and the volume of the reservoir that does not
fulfill it is only 3.24 x 106 m3
. To find out the reservoir
capacity of the Benanga Reservoir, it is necessary to
carry out an analysis of inflow and outflow calculations
and an analysis of the reservoir capacity. The study
aimed to determine the water holding capacity of the
Benanga Reservoir, Samarinda. The research was
conducted at the Benanga Reservoir, Samarinda City
from April to May 2023. Primary data were collected,
namely the depth of the reservoir and the volume of the
reservoir, secondary data, namely the area of the
reservoir, from the Department of Public Works and
Public Housing (PUPR) Office of East Kalimantan. Data
analysis, namely: analysis of tracking floods through the
reservoir using the Muskingum method, analysis of
reservoir capacity (inflow and outflow), analysis of
sediment deposition in the reservoir, analysis of sediment
that settles in the reservoir, and maximum flood
discharge. The results of the research show that: (1) The
results of the analysis of flood tracing through the
Benanga Reservoir obtained that the flood discharge
entering the reservoir (Qinflow) was 706.4578 m3
/second
and the flood discharge that was leaving the reservoir
(Qoutflow) was 443.930 m3
/second, so that the Benanga
Reservoir can reduce flood discharge by 262.528
m3
/second; and (2) by using the mass arch method, the
capacity of the Benanga Reservoir is 27.145 x 106 m3
,
while the actual water holding capacity of the Benanga
Reservoir is 3.240 x106 m3
.
Keywords :
Reservoir Capacity, Flood Discharge, Reservoir Volume, Benanga Reservoir
It is hoped that the Benanga Reservoir in
Samarinda City can function as irrigation for the
surrounding community's rice fields, as a flood buffer or
controller, and also as a Local water company (PDAM)
raw water, and in the future it can become a water
tourism area for the people of Samarinda, as well as
residents outside Samarinda. The main problem facing
the current is the reservoir not being able to function as
needed due to the insufficient capacity of the reservoir
due to the large amount of sedimentation and the surface
is filled with wild water hyacinth plants. The current
condition of the existing reservoir has an area of 108
hectares and the volume of the reservoir that does not
fulfill it is only 3.24 x 106 m3
. To find out the reservoir
capacity of the Benanga Reservoir, it is necessary to
carry out an analysis of inflow and outflow calculations
and an analysis of the reservoir capacity. The study
aimed to determine the water holding capacity of the
Benanga Reservoir, Samarinda. The research was
conducted at the Benanga Reservoir, Samarinda City
from April to May 2023. Primary data were collected,
namely the depth of the reservoir and the volume of the
reservoir, secondary data, namely the area of the
reservoir, from the Department of Public Works and
Public Housing (PUPR) Office of East Kalimantan. Data
analysis, namely: analysis of tracking floods through the
reservoir using the Muskingum method, analysis of
reservoir capacity (inflow and outflow), analysis of
sediment deposition in the reservoir, analysis of sediment
that settles in the reservoir, and maximum flood
discharge. The results of the research show that: (1) The
results of the analysis of flood tracing through the
Benanga Reservoir obtained that the flood discharge
entering the reservoir (Qinflow) was 706.4578 m3
/second
and the flood discharge that was leaving the reservoir
(Qoutflow) was 443.930 m3
/second, so that the Benanga
Reservoir can reduce flood discharge by 262.528
m3
/second; and (2) by using the mass arch method, the
capacity of the Benanga Reservoir is 27.145 x 106 m3
,
while the actual water holding capacity of the Benanga
Reservoir is 3.240 x106 m3
.
Keywords :
Reservoir Capacity, Flood Discharge, Reservoir Volume, Benanga Reservoir
