| 词条 | Okhla barrage |
| 释义 |
| name = Okhla barrage | name_official = | image = Agra canal headworks1871a.jpg | image_size = | image_caption = Agra Canal headworks at Okhla (c. 1871) | image_alt = | location_map = India Delhi#India | location_map_size = | location_map_caption = | coordinates = {{Coord|28.565|N|77.303|E|type:landmark|display=inline}} | country = India | location = Okhla in Delhi | status = Functional | construction_began = | opening = 1874 | demolished = | cost = | owner = | dam_type = | dam_height = | dam_height_thalweg = | dam_height_foundation= | dam_length = {{Convert|791|m|ft|0|abbr=on}}[1] | dam_width_crest = | dam_width_base = | dam_volume = | dam_elevation_crest = | dam_crosses = | spillway_count = | spillway_type = | spillway_capacity = | res_name = | res_capacity_total = | res_capacity_active = | res_capacity_inactive= | res_catchment = | res_surface = | res_elevation = | res_max_depth = | res_max_length = | res_max_width = | res_tidal_range = | plant_operator = | plant_commission = | plant_decommission = | plant_type = | plant_turbines = | plant_capacity = | plant_annual_gen = | website = | extra = }} The Okhla barrage (Okhla Weir and Okhla bridge),[2] is 791 meters[1] or roughly 800-yard long weir across Yamuna River opened in 1874, is today the location of Okhla Bird Sanctuary 10 km to the south of New Delhi and downstream of Nizamuddin bridge at Okhla, where Agra canal originates from it.[3] The top of barrage also serves as the Delhi-Noida carriageway of Mahamaya-Kalindi Kunj road.[4] Nearby later-era New Okhla Barrage is 554 meters long.[1] It is under the management of the government of Uttar Pradesh, ITO barrage is under Haryana government, and Wazirabad barrage is managed by Delhi government.[5] HistoryThe barrage and Agra canal were opened in 1874 by the British Raj for the purpose of irrigation and water navigation from Delhi to Gurgaon, Mathura and Agra districts, and Bharatpur State. Navigation stopped in 1904.[6] It was built seven-feet higher than the summer level of the river.[6] The Yamuna, from its origin at Yamunotri to Okhla barrage, is called Upper Yamuna which is managed by Upper Yamuna River Board created in 1995.[7][8] Yamuna flows for 48 km in Delhi, including 22 km from Wazirabad barrage where it enters Delhi to Okhla barrage after which it enters Haryana.[9][10][11] Upstream barrages in Delhi are Wazirabad barrage (north) and ITO barrage (center).[4][10][11][12] A canal was built from Okhla barrage to Gurugram district (now Faridabad) during the 3rd Five-Year Plans of India (1961-66).[13] That canal now has a downstream Palla barrage in Faridabad. Bird SanctuaryOkhla barrage now also serves as the location of Okhla Bird Sanctuary.[14][15][16][17] Downstream on Agra canal is also Keetham Lake National Bird Sanctuary.[18][19][20] PreservationThe road over the barrage was shut for 45 days in September 2017, for repairs to 18 of its 27 water release gates, prior to the arrival of migratory birds in November.[4] Navigation restorationThis barrage on Yamuna is part of National Waterway NW110, one of India's 111 National Waterways. Okhla barrage lies on the following two under-development waterways projects.[28][29]
See also
References1. ^1 2 Regional plan 2. ^I. Mohan, 1992, [https://books.google.com.sg/books?id=Z8FIAAAAYAAJ Environment and Urban Development: A Critical Evaluation of Slums]. 3. ^Agra Canal Modernization Project {{webarchive |url=https://web.archive.org/web/20080318135145/http://irrigation.up.nic.in/achievements.htm |date=18 March 2008 }} 4. ^1 2 [https://timesofindia.indiatimes.com/city/noida/okhla-barrage-to-be-shut-at-night-for-45-days/articleshow/60757500.cms Okhla barrage to be shut at night for 45 days.], Times of India, 20 Sept 2017. 5. ^Too many cooks spoil the broth, The Hindu, 29 March 2016. 6. ^1 {{cite EB1911|wstitle=Agra Canal}}. 7. ^2015, [https://books.google.com.sg/books?isbn=8123020066 INDIA 2015], New Media Wing. 8. ^Upper Yamuna River Board Official website. 9. ^[spaenvis.nic.in/index1.aspx?lid=2284&mid=1&langid=1&linkid=550 YAMUNA FLOOD PLAIN - ENVIS Center on Human Settlement's] 30 June 2016. 10. ^1 Joginder Singh, 2010, [https://books.google.com.sg/books?id=qGmpz0IrNVIC&pg=PA504&dq=okhla+barrage+name&hl=en&sa=X&ved=0ahUKEwiL9rTPjpXYAhXBQo8KHY7yAeoQ6AEIQjAF#v=onepage&q=okhla%20barrage%20name&f=false India, Democracy and Disappointments], Page 504. 11. ^1 Sharad K. Jain, Pushpendra K. Agarwal, Vijay P. Singh, 2007, [https://books.google.com.sg/books?isbn=1402051808 Hydrology and Water Resources of India], Page 348. 12. ^1967, [https://books.google.com.sg/books?id=_LLmrBR7QfwC Annual Research Memoirs], - Central Water and Power Research Station (India)] 13. ^Milap Chand Dandia, 1976, [https://books.google.com.sg/books?id=eZE2AQAAIAAJ Rajasthan Year-book & Who's who], Volume 14, Page 69. 14. ^{{cite web| title = Petition to protect Okhla bird sanctuary| url =http://articles.timesofindia.indiatimes.com/2009-03-12/flora-fauna/28047010_1_birds-species-petition |date=12 March 2009| accessdate = 2013-08-15| publisher = The Times of India}} 15. ^{{cite web | title =Report from India: Where Have the Birds Gone?|author=Ananda Banerjee|date=28 July 2011| publisher=ClimateStoryTellers.org| url = http://www.climatestorytellers.org/stories/ananda-banerjee-where-have-the-birds-gone/ | accessdate = 2013-08-15}} 16. ^{{cite web | title = Stop constructions around Okhla sanctuary: Tribunal to Noida authority|publisher=Hindustan Times | url = http://www.hindustantimes.com/India-news/Noida/Stop-constructions-around-Okhla-sanctuary-Tribunal-to-Noida-authority/Article1-1108069.aspx| accessdate = 2013-08-15|date= 15 August 2013}} 17. ^{{cite web| title = National Green Tribunal whammy to realty projects| url =http://timesofindia.indiatimes.com/city/noida/National-Green-Tribunal-whammy-to-realty-projects/articleshow/21837787.cms|date=15 August 2013| accessdate = 2013-08-15 | publisher = The Times of India}} 18. ^Keetham Lake Agra excursion 19. ^Bird sanctury, http://cpcbenvis.nic.in/newsletter/ CPCBENVIS] 20. ^Agra Braj circuit of UP {{webarchive|url=https://web.archive.org/web/20081005042333/http://up-tourism.com/tour/agra_braj_circuit.htm |date=5 October 2008 }}, UP Tourism. 21. ^1 [https://timesofindia.indiatimes.com/city/delhi/Yamuna-water-link-may-get-govt-nod/articleshow/51705467.cms Yamuna water link may get govt nod], Times of India, 6 April 2016. 22. ^1 Steamer service to revive navigation in Agra Canal after 143 years, Hindustan Times, 1 Feb 2017. 7 : Dams on the Yamuna River|Tourist attractions in Delhi|Barrages in India|Bridges in Delhi|Bird sanctuaries of Delhi|Lakes of Delhi|Wetlands of India |
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