Wonorejo Dam

Last updated
Wonorejo Dam
Country Indonesia
Location Tulungagung, East Java
PurposeMulti purpose
StatusOperational
Construction beganJune 1994
Opening date2001 [1]
Construction cost ¥ 14,954 billion
Built by
Owner(s) Minister For Public Works and Human Settlements
Operator(s) Jasa Tirta I
Dam and spillways
Type of dam Embankment
Impounds Gondang River
Height100 m
Length545 m
Elevation at crest188 m
Dam volume6.150.000 m³
Spillways 1
Spillway typeOgee aside
Spillway length110 m
Spillway capacity540 m³ / detik
Reservoir
CreatesWonorejo Reservoir
Total capacity122.000.000 m³
Active capacity106.000.000 m³
Inactive capacity16.000.000 m³
Catchment area 126,3 km²
Surface area3,85 km²
Wonorejo Hydroelectric Power Plant
Operator(s) PLN Nusantara Power
Type Conventional
Hydraulic head 73,9 m
Turbines 1
Installed capacity 6,5 MW [2]
Annual generation 31.700 MWh

Wonorejo Dam is a dam located at Pagerwojo district, Tulungagung Regency, East Java Province. This dam is located at the foot of Mount Wilis or about 12 kilometers from downtown Tulungagung. With a capacity of around 122 million cubic meters, this dam is also one of the largest dams in Indonesia. This dam was inaugurated on June 21, 2001, by the Vice President of Indonesia at that time, Megawati Sukarnoputri. [1]

Contents

This dam was built on the Gondang River in Wonorejo Village using a loan from OECF of ¥ 14.954 billion.

As a result of sedimentation, in 2011, the total capacity of the reservoir formed as a result of the construction of this dam is estimated to remain at 107.2 million cubic meters, with an active capacity of 97 million cubic meters and an inactive capacity of 10.1 million cubic meters. [3]

Utilization

The water that is blocked by this dam is used to generate electricity through a hydropower plant with a capacity of 6.5 MW, as well as a source of drinking water of 8.02 cubic meters per second. The dammed water is also used to irrigate 7,540 hectares of agricultural land.

This dam also functions to prevent flooding in Tulungagung, together with Neyama Tunnel in Besuki District.

The Wonorejo Dam is now also one of the mainstay tourist attractions Tulungagung Regency, besides Popoh Beach. Several accommodation facilities have also been built around the Wonorejo Dam, one of which is the Swa-Loh Resort.

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References

  1. 1 2 Sinaro, Radhi (2007). Menyimak Bendungan di Indonesia (1910-2006) (in Indonesian). Tangerang Selatan: Bentara Adhi Cipta. ISBN   978-979-3945-23-1.
  2. Development of the Brantas River Basin (part 10) (PDF). Tokyo: JICA. 1998. pp. 206–207.
  3. "Pola Pengelolaan Sumber Daya Air Wilayah Sungai Brantas" (PDF) (in Indonesian). Kementerian Pekerjaan Umum dan Perumahan Rakyat. 20 March 2020. p. 145. Retrieved 16 January 2023.

Coordinates: 8°01′12″S111°48′19″E / 8.0200°S 111.8052°E / -8.0200; 111.8052