Mirani Dam
Encyclopedia
Mirani Dam is a medium-size multi-purpose concrete-faced rock-filled dam located on the Dasht River
south of the Central Makran Range
in Kech District
in Balochistan province of Pakistan
. Its 302000 acre.ft. reservoir is fed by the Kech River
and the Nihing River.
Mirani Dam was completed in July 2006 and it impounded the Dasht River in August 2006. It successfully withstood an extreme flood event in June 2007.
The dam is used for irrigation of 33,200 acres in Kech Valley and for the supply of clean drinking water to Turbat
and Gwadar
.
, approximately 30 km west of Turbat
and 8 km from the nearest point of the under-construction 820 km-long M8 motorway (Pakistan)
connecting Ratodero
with Gwadar
.
The secondary purpose of Mirani Dam is to ensure a constant supply of clean drinking water to the towns of Turbat and Gwadar throughout the year.
(WAPDA) in 2001. Its design was prepared by the National Engineering Services of Pakistan (NESPAK) and the construction contract was awarded, on 15 June 2002 on EPC
/Turnkey
basis, to Mirani Dam Joint Venture (MDJV), a consortium led by Descon Engineering
Limited, a Pakistani company. The Mirani Dam project was the first EPC/Turnkey dam project awarded to Pakistani contractors.
Construction of the dam consumed 10.87 million man-hours and, at its peak, 1,550 people were employed for its construction, mostly from Kech and Gwadar districts. Construction was completed in July 2006.
Catchment Area: 7,964 sq. miles
Average Annual Flow: 223000 acre.ft.
Reservoir:
Gross Storage: 302000 acre.ft.
Live Storage: 52000 acre.ft.
Average Annual Releases: 114000 acre.ft.
Dam:
Type: Concrete-faced rock-filled
Height: 127 ft.
Length at Crest: 3,350 ft.
Top Width: 35 ft.
Spillway:
Type: Overflow
Clear Waterway: 344 ft.
Designed Capacity: 205800 cuft/s
Maximum Capacity: 384300 cuft/s
Outlet:
Tunnel Diameter: 8 ft.
Capacity: 377 cuft/s
Irrigation System Command Area & Capacity:
Irrigation System: Gravity, Lined Channels
Right Bank Canal: 20800 acres (84.2 km²) & 36 cuft/s
Left Bank Canal: 12400 acres (50.2 km²) & 141 cuft/s
Total: 33200 acres (134.4 km²) & 377 cuft/s
Dasht River
Dasht River is located in Gwadar District, Balochistan, Pakistan.Mirani Dam is located on Dasht River to irrigate the surrounding areas and to provide drinking water to Gwadar....
south of the Central Makran Range
Central Makran Range
Central Makran Range is a mountain range in southwestern part of Balochistan province of Pakistan.The Central Makran Range is primarily made up of limestone and sandstone and was formed when the northwestern Indian plate collided with the Asian plate....
in Kech District
Kech District
Kech or Turbat district is a district in Balochistan province of Pakistan.-Administration:The district of Kech is administratively subdivided into the following tehsils:* Buleda* Dasht* Turbat* Tump-Population:...
in Balochistan province of Pakistan
Pakistan
Pakistan , officially the Islamic Republic of Pakistan is a sovereign state in South Asia. It has a coastline along the Arabian Sea and the Gulf of Oman in the south and is bordered by Afghanistan and Iran in the west, India in the east and China in the far northeast. In the north, Tajikistan...
. Its 302000 acre.ft. reservoir is fed by the Kech River
Kech River
The Kech River is a tributary of the Dasht River which flows from Iran into Balochistan, Pakistan. The city of Turbat is located along this river and is used to irrigate the orchards and in vegetable farming. However the area is prone to flooding - in June 2007 the flood waters entered Turbat city...
and the Nihing River.
Mirani Dam was completed in July 2006 and it impounded the Dasht River in August 2006. It successfully withstood an extreme flood event in June 2007.
The dam is used for irrigation of 33,200 acres in Kech Valley and for the supply of clean drinking water to Turbat
Turbat
Turbat is a city located in southern Balochistan, a province of Pakistan. The town is the administrative center of Kech District and Turbat Tehsil, the town itself contains one Union council.-About:...
and Gwadar
Gwadar
Gwadar also known as Godar is a developing port city on the southwestern Arabian Sea coast of Pakistan. It is the district headquarters of Gwadar District in Balochistan province and has a population of approximately 50,000.Gwadar is strategically located at the apex of the Arabian Sea and at the...
.
Location
Mirani Dam is located on the Dasht RiverDasht River
Dasht River is located in Gwadar District, Balochistan, Pakistan.Mirani Dam is located on Dasht River to irrigate the surrounding areas and to provide drinking water to Gwadar....
, approximately 30 km west of Turbat
Turbat
Turbat is a city located in southern Balochistan, a province of Pakistan. The town is the administrative center of Kech District and Turbat Tehsil, the town itself contains one Union council.-About:...
and 8 km from the nearest point of the under-construction 820 km-long M8 motorway (Pakistan)
M8 motorway (Pakistan)
The M8 is an under-construction motorway in Balochistan and Sindh provinces of Pakistan.- Features :The M8 will have 4-lanes and a total length of 892 km...
connecting Ratodero
Ratodero
Ratodero is the capital of Ratodero Taluka a sub-division of Larkana District in the Sindh province of Pakistan, it is located some 30 km away from the district capital Larkana .Indo-Pak partition, the city has a special reputation for its sweet products. The most special is known as Mawa and...
with Gwadar
Gwadar
Gwadar also known as Godar is a developing port city on the southwestern Arabian Sea coast of Pakistan. It is the district headquarters of Gwadar District in Balochistan province and has a population of approximately 50,000.Gwadar is strategically located at the apex of the Arabian Sea and at the...
.
Purpose
The Kech, Nihing and Dasht Rivers are seasonal rivers that are dry for most part of the year and only active in the summer months when snow melts in the mountains upstream and during the summer rainfall season. The Kech Valley consists of cultivable soil upon which agriculture activity could be carried out if a constant water supply is ensured. The primary purpose of Mirani Dam was to store water from the three rivers during the summer season and during floods so that water could be available for irrigation purposes throughout the year in order to bring 33,200 acres of hitherto uncultivated land in Kech Valley under cultivation.The secondary purpose of Mirani Dam is to ensure a constant supply of clean drinking water to the towns of Turbat and Gwadar throughout the year.
Construction
Mirani Dam was commissioned by Pakistan's Water and Power Development AuthorityWater and Power Development Authority
The Water and Power Development Authority is a government-owned public utility maintaining power and water in Pakistan, although it does not manage thermal power. WAPDA includes Tarbela and Mangla dams among its resources...
(WAPDA) in 2001. Its design was prepared by the National Engineering Services of Pakistan (NESPAK) and the construction contract was awarded, on 15 June 2002 on EPC
EPC
EPC may refer to:Business, science and technology:* Earnings Per Click, a revenue analysis for online advertising* Embedded PC* Exception Program Counter...
/Turnkey
Turnkey
A turn-key or a turn-key project is a type of project that is constructed by a developer and sold or turned over to a buyer in a ready-to-use condition.-Common usage:...
basis, to Mirani Dam Joint Venture (MDJV), a consortium led by Descon Engineering
DESCON Engineering
Descon Engineering was established in 1977. DESCON Engineering is part of DESCON group which has three major businesses viz. Engineering, Chemicals & Power.-Businesses:The Engineering Business comprises following establishments:...
Limited, a Pakistani company. The Mirani Dam project was the first EPC/Turnkey dam project awarded to Pakistani contractors.
Construction of the dam consumed 10.87 million man-hours and, at its peak, 1,550 people were employed for its construction, mostly from Kech and Gwadar districts. Construction was completed in July 2006.
Salient features
Hydrology:Catchment Area: 7,964 sq. miles
Average Annual Flow: 223000 acre.ft.
Reservoir:
Gross Storage: 302000 acre.ft.
Live Storage: 52000 acre.ft.
Average Annual Releases: 114000 acre.ft.
Dam:
Type: Concrete-faced rock-filled
Height: 127 ft.
Length at Crest: 3,350 ft.
Top Width: 35 ft.
Spillway:
Type: Overflow
Clear Waterway: 344 ft.
Designed Capacity: 205800 cuft/s
Maximum Capacity: 384300 cuft/s
Outlet:
Tunnel Diameter: 8 ft.
Capacity: 377 cuft/s
Irrigation System Command Area & Capacity:
Irrigation System: Gravity, Lined Channels
Right Bank Canal: 20800 acres (84.2 km²) & 36 cuft/s
Left Bank Canal: 12400 acres (50.2 km²) & 141 cuft/s
Total: 33200 acres (134.4 km²) & 377 cuft/s