Ukai Dam - Revision history

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	==See also==		==See also==
	~~{{Portal\|India\|Water\|Renewable energy}}~~
	* [[Sardar Sarovar Dam]]		* [[Sardar Sarovar Dam]]
	* [[Wier-Cum Causeway\|Wier-Cum Causeway on Tapi]]		* [[Wier-Cum Causeway\|Wier-Cum Causeway on Tapi]]

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	The [[Ukai]] Dam, constructed across the [[Tapti River\|Tapi River]], is the second largest reservoir in [[Gujarat]] after the [[Sardar Sarovar Dam\|Sardar Sarovar]]. It is also known as Vallabh Sagar. Constructed in 1972, the dam is meant for irrigation, power generation and flood control. Having a catchment area of about 62,255 km<sup>2</sup> and a water spread of about 52,000 hectares, its capacity is almost same as that of the [[Bhakra Dam\|Bhakra Nangal Dam]]. The site is located 94~~ ~~km from [[Surat]].		The [[Ukai]] Dam, constructed across the [[Tapti River\|Tapi River]], is the second largest reservoir in [[Gujarat]] after the [[Sardar Sarovar Dam\|Sardar Sarovar]]. It is also known as Vallabh Sagar. Constructed in 1972, the dam is meant for irrigation, power generation and [[flood control]]. Having a catchment area of about 62,255 km<sup>2</sup> and a water spread of about 52,000 hectares, its capacity is almost same as that of the [[Bhakra Dam\|Bhakra Nangal Dam]]. The site is located 94 km from [[Surat]].

	The storage capacity of Ukai dam is almost 46% of the total capacity of all the other existing dams in Gujarat if put together. Thus it can be concluded that the rest of the dams have as little as 0.1% average storage capacity. During the last 40 years, the actual irrigation potential is attained through all the major and medium water resources projects in the State, which comprises only 14 million hectares.<ref>{{cite news \|title=Grave danger to Ukai dam: Gujarat govt \|url=http://articles.timesofindia.indiatimes.com/2006-08-08/ahmedabad/27804539_1_ukai-tapi-catchment-areas \|archive-url=https://web.archive.org/web/20110811080720/http://articles.timesofindia.indiatimes.com/2006-08-08/ahmedabad/27804539_1_ukai-tapi-catchment-areas \|url-status=dead \|archive-date=11 August 2011 \|work=[[The Times of India]] \|date=8 August 2006 \|access-date=2 July 2010 }}</ref>

	The dam is an earth-cum-masonry dam. Its embankment wall is 4,927 m long. Its earth dam is 105.156 meters high, whereas the masonry dam is 68.68 meters high. The dam's left bank canal feeds water to an area of 1,522 km<sup>2</sup>. and its right canal provides water to 2,275 km<sup>2</sup> of land.<ref name="Ukai">{{cite web\|title=Water Resources Projects in the Tapi Basin\|url=http://www.nih.ernet.in/rbis/india_information/Tapi_projects.htm\|url-status=live\|archive-url=https://web.archive.org/web/20160413171140/http://www.nih.ernet.in/rbis/india_information/Tapi_projects.htm\|archive-date=2016-04-13\|access-date=2 February 2014}}</ref>		The dam is an earth-cum-masonry dam. Its embankment wall is 4,927 m long. Its earth dam is 105.156 meters high, whereas the masonry dam is 68.68 meters high. The dam's left bank canal feeds water to an area of 1,522 km<sup>2</sup>. and its right canal provides water to 2,275 km<sup>2</sup> of land.<ref name="Ukai">{{cite web\|title=Water Resources Projects in the Tapi Basin\|url=http://www.nih.ernet.in/rbis/india_information/Tapi_projects.htm\|url-status=live\|archive-url=https://web.archive.org/web/20160413171140/http://www.nih.ernet.in/rbis/india_information/Tapi_projects.htm\|archive-date=2016-04-13\|access-date=2 February 2014}}</ref>

	A fort built by the [[Gaekwad dynasty]] of [[Baroda State\|Baroda]] was submerged in the reservoir. It can be spotted when water levels in the reservoir goes down.<ref>{{cite news \|last1=Bhatt \|first1=Himansshu \|title=Submerged fort emerges from low water of Ukai reservoir {{!}} Surat News - Times of India \|url=https://timesofindia.indiatimes.com/city/surat/Submerged-fort-emerges-from-low-water-of-Ukai-reservoir/articleshow/52647923.cms \|access-date=21 June 2019 \|work=The Times of India \|date=8 June 2016 \|language=en}}</ref>		A fort built by the [[Gaekwad dynasty]] of [[Baroda State\|Baroda]] was submerged in the reservoir. It can be spotted when water levels in the reservoir goes down.<ref>{{cite news \|last1=Bhatt \|first1=Himansshu \|title=Submerged fort emerges from low water of Ukai reservoir {{!}} Surat News - Times of India \|url=https://timesofindia.indiatimes.com/city/surat/Submerged-fort-emerges-from-low-water-of-Ukai-reservoir/articleshow/52647923.cms \|access-date=21 June 2019 \|work=The Times of India \|date=8 June 2016 \|language=en}}</ref>
			[[File:Ukai dam.jpg\|thumb\|Photo of Ukai dam\|left]]

	==Ukai Hydro Power Station==		==Ukai Hydro Power Station==

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{{Infobox dam
| name = Ukai dam
| name_official = Ukai Water Resources Project
| image =
| image_size =
| image_caption =
| image_alt =
| location_map = India Gujarat
| location_map_size =
| location_map_caption = Ukai Dam
| coordinates = {{coord|21|14|53.67|N|73|35|21.87|E|type:landmark|display=inline,title}}
| country = [[India]]
| location = [[Tapi district]]
| status = o
| construction_began = 1964
| opening = 1972
| demolished =
| cost = Rs 1389.6 Million
| owner =
| dam_type =
| dam_height = 345ft
| dam_height_thalweg =
| dam_height_foundation={{convert|105.156|m|ft|lk=in|sigfig=2}}
| dam_length = {{convert|4927|m|ft|lk=in|sigfig=2}}
| dam_width_crest =
| dam_width_base =
| dam_volume =
| dam_elevation_crest =
| dam_crosses = [[Tapti River|Tapi River]]
| spillway_count = 22, radial
| spillway_type = [[Ogee]]
| spillway_capacity = 46,269 m3/s
| res_name = Vallabhsagar
| res_capacity_total = 7,414 [[million cubic metre|MCM]]
| res_capacity_active = 6,730 MCM
| res_capacity_inactive=
| res_catchment = {{convert|62225|km2|sqft|lk=in|sigfig=2}}
| res_surface = {{convert|612|km2|sqft|lk=in|sigfig=2}}
| res_elevation =
| res_max_depth =
| res_max_length =
| res_max_width =
| res_tidal_range =
| plant_hydraulic_head = {{convert|57|m|ft|lk=in|sigfig=2}} to {{convert|34|m|ft|lk=in|sigfig=2}}
| plant_operator =
| plant_commission =
| plant_decommission =
| plant_type = c
| plant_turbines =
| plant_capacity = 300 MW
| plant_annual_gen =
| website = [http://guj-nwrws.gujarat.gov.in/showpage.aspx?contentid=1601&lang=English Ukai dam]
| extra =
}}

The [[Ukai]] Dam, constructed across the [[Tapti River|Tapi River]], is the second largest reservoir in [[Gujarat]] after the [[Sardar Sarovar Dam|Sardar Sarovar]]. It is also known as Vallabh Sagar. Constructed in 1972, the dam is meant for irrigation, power generation and flood control. Having a catchment area of about 62,255 km2 and a water spread of about 52,000 hectares, its capacity is almost same as that of the [[Bhakra Dam|Bhakra Nangal Dam]]. The site is located 94 km from [[Surat]].

The storage capacity of Ukai dam is almost 46% of the total capacity of all the other existing dams in Gujarat if put together. Thus it can be concluded that the rest of the dams have as little as 0.1% average storage capacity. During the last 40 years, the actual irrigation potential is attained through all the major and medium water resources projects in the State, which comprises only 14 million hectares.<ref>{{cite news |title=Grave danger to Ukai dam: Gujarat govt |url=http://articles.timesofindia.indiatimes.com/2006-08-08/ahmedabad/27804539_1_ukai-tapi-catchment-areas |archive-url=https://web.archive.org/web/20110811080720/http://articles.timesofindia.indiatimes.com/2006-08-08/ahmedabad/27804539_1_ukai-tapi-catchment-areas |url-status=dead |archive-date=11 August 2011 |work=[[The Times of India]] |date=8 August 2006 |access-date=2 July 2010 }}</ref>

The dam is an earth-cum-masonry dam. Its embankment wall is 4,927 m long. Its earth dam is 105.156 meters high, whereas the masonry dam is 68.68 meters high. The dam's left bank canal feeds water to an area of 1,522 km2. and its right canal provides water to 2,275 km2 of land.<ref name="Ukai">{{cite web|title=Water Resources Projects in the Tapi Basin|url=http://www.nih.ernet.in/rbis/india_information/Tapi_projects.htm|url-status=live|archive-url=https://web.archive.org/web/20160413171140/http://www.nih.ernet.in/rbis/india_information/Tapi_projects.htm|archive-date=2016-04-13|access-date=2 February 2014}}</ref>

A fort built by the [[Gaekwad dynasty]] of [[Baroda State|Baroda]] was submerged in the reservoir. It can be spotted when water levels in the reservoir goes down.<ref>{{cite news |last1=Bhatt |first1=Himansshu |title=Submerged fort emerges from low water of Ukai reservoir {{!}} Surat News - Times of India |url=https://timesofindia.indiatimes.com/city/surat/Submerged-fort-emerges-from-low-water-of-Ukai-reservoir/articleshow/52647923.cms |access-date=21 June 2019 |work=The Times of India |date=8 June 2016 |language=en}}</ref>

==Ukai Hydro Power Station==

There are four hydro turbine units, each of 75 MW with a total installed capacity of 300 MW. All the above units were made by [[BHEL]]. Commissioning dates of units 1 to 4 are: 8 July 1974, 13 December 1974, 22 April 1975 and 4 March 1976.

==See also==
{{Portal|India|Water|Renewable energy}}
* [[Sardar Sarovar Dam]]
* [[Wier-Cum Causeway|Wier-Cum Causeway on Tapi]]
* [[Songadh Fort]]

==References==
{{reflist}}

{{stack|}}
{{Power Plants of Gujarat}}

[[Category:Dams in Gujarat]]
[[Category:Dams on the Tapti River]]
[[Category:Hydroelectric power stations in Gujarat]]
[[Category:Surat district]]
[[Category:Masonry dams]]
[[Category:Dams completed in 1972]]
[[Category:1972 establishments in Gujarat]]
{{India-dam-stub}}