Wonorejo Dam

Wonorejo Dam
Wonorejo Dam
Country	Indonesia
Location	Tulungagung, East Java
Purpose	Multi purpose
Status	Operational
Construction began	June 1994
Opening date	2001[1]
Construction cost	¥ 14,954 billion
Built by	Dam: Kajima, Taisei, And Housing Development; Machining: Boma Bisma Indra;
Owner(s)	Minister For Public Works and Human Settlements
Operator(s)	Jasa Tirta I
Dam and spillways
Type of dam	Embankment
Impounds	Gondang River
Height	100 m
Length	545 m
Elevation at crest	188 m
Dam volume	6.150.000 m³
Spillways	1
Spillway type	Ogee aside
Spillway length	110 m
Spillway capacity	540 m³ / detik
Reservoir
Creates	Wonorejo Reservoir
Total capacity	122.000.000 m³
Active capacity	106.000.000 m³
Inactive capacity	16.000.000 m³
Catchment area	126,3 km²
Surface area	3,85 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]

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.

External links

Terpesona Bendungan Wonorejo di Tulungagung

References

Sinaro, Radhi (2007). Menyimak Bendungan di Indonesia (1910-2006) (in Indonesian). Tangerang Selatan: Bentara Adhi Cipta. ISBN 978-979-3945-23-1.
Development of the Brantas River Basin (part 10) (PDF). Tokyo: JICA. 1998. pp. 206–207.
"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.

8.0200°S 111.8052°E / -8.0200; 111.8052

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[sinaro-1] Sinaro, Radhi (2007). Menyimak Bendungan di Indonesia (1910-2006) (in Indonesian). Tangerang Selatan: Bentara Adhi Cipta. ISBN 978-979-3945-23-1.

[jica-2] Development of the Brantas River Basin (part 10) (PDF). Tokyo: JICA. 1998. pp. 206–207.

[pola-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.