Nagarjuna Sagar Dam, one in every of the seven wonders of the country has been Associate in Nursing epitome of development of the country. it's world’s largest masonry dam and is as previous as a complete generation. The foundations
tone of the dam was set back in 1955 and it absolutely was engineered until 1967. Nagarjuna Sagar dam happens to be one in every of the primary representatives of ‘green revolution’ within the country. however funnily enough, the conceptualization of the dam was done throughout a people era. a people Engineers sketched out this dam in 1903 with aid from Nizams of Hyderabad. the thought was to use excess water of stream avatar. They worked on many locations for the dam together with Hyderabad, Siddeswaram and Pulichintala. Raja Of Muktyala contend a vital role in identification of the location, planning and construction of the dam.
16 34' 23" North latitude
79 18' 47" East longuated
- Elevation or mean sea level of Nagarjuna sagar 124 meter (or) 407 ft Above sea level
The summers in Nagarjuna-Sagar are hot and generally avoided by the tourists. The month of March marks the start of summer season and it lasts till May. Temperature ranges between 34°C to 41°C during these months.
Monsoon Season at NagarjunasagarJune marks the beginning of Monsoon season in Nagarjuna-Sagar and lasts till September. Moderate rainfall is experienced by the region and light cotton clothes are just enough for the city weather.
Winter Season at Nagarjunasagar
Winters in Nagarjuna-Sagar start in the month of December and last till January. The weather is pleasant during these months and the temperature ranges between a comfortable 14°C to 24°C.
BEST TIME TO VISIT- SEP TO FEBRUARY
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World's largest masonry dam protected with 26 gates measuring 124.663m in height , Nagarjunasagar Dam located in Nalgonda District is built across River Krishna. The dam has a storage capacity of nearly 11,472 million cubic meters with an irrigation capacity for 9.81 lac acres of land
Nagarjuna Sagar History
Nagarjuna Sagar dam was
formally inaugurated by the then Prime Minister Jawaharlal salon in Gregorian calendar month
The dam plays a vital role for irrigation in province. The dam provides irrigation water to the districts of Nalgonda, Khammam, Prakasam, Guntur and avatar. That’s not all. Nagarjuna Sagar Dam could be a multi purpose dam that isn't solely used for irrigation however conjointly for hydro-electric comes in Asian nation. That’s the rationale why Jawaharlal solon whereas inaugurating the guided missile same that Nagarjuna Sagar Dam could be a image of country’s prosperity and speaks for the fashionable temples in Asian nation.
Nagarjuna Sagar Dam isn't simply an area of national importance however conjointly non secular price. it's an area wherever Buddhists come back to hope because the relics of Buddhist civilization that date to third century AD are found here throughout excavations. These relics are fastidiously preserved in Associate in Nursing island deposit settled within the interior of Nagarjuna Sagar lake. This deposit has been created within the sort of a Buddhist Vihara, that homes a beautiful assortment of items that signify Buddhist art and culture. It homes some in style relics too, that embody Associate in Nursing jewellery and a little tooth that area unit believed to be of Buddha. The deposit conjointly encompasses a monolithic sculpture of Buddha, that is partially ruined, however happens to be one in every of the most important attractions of the place.
The scenic beauty and non secular importance of the place makes it one in every of the foremost in style tourer destinations across the state. individuals visiting Hyderabad don't miss out on Nagarjuna Sagar dam as their trip would be incomplete while not a visit to the place. The place is well connected by road. you'll be able to take a bus or rent a taxi to achieve Nagarjuna Sagar Dam. Did we tend to mention ‘do not’ forget you camera behind otherwise you could regret all of your life!
DETAIL OF THE PROJECT
Latitude : 16 34' 23" N
Longitude : 79 18' 47" E
Catchment area at Dam site : 83,083 Sq.miles (2,15,185 Sq.KMs)
Maximum annual rain fall within the Catchment : 35" (889 MM)
Maximum determined flood : 30,050 cumecs (10.61 100000 C/s)
1000 years style flood : 58,340 cumecs (20.60 100000 C/S)
Routed flood : 45310 Cumecs (16.00 100000 C/S)
RESERVOIR DETAILS
F.R.L : +590.00 Ft. (+179.832 Mt.)
Maximum water level : +594.00 Ft. (+181.051 Mt.)
M.D.D.L : +510.00 Ft. (+155.450 Mt.)
Water unfold area : 110 Sq.Miles (285 Sq.KMs)
Live storage on top of +510.00 Ft. : 181 TMC
MASONRY DAM DETAILS
Length of spill approach Dam : 1545 foot. (470.916 Mts.)
Length of Non-over flow Dam : 3211 foot. (978.612 Mts.)
Total length of Masonry Dam : 4756 foot. (1449.628 Mts)
Maximum height of Dam on top of deepest Foundation : 409 foot. (124.663 Mts.)
Top breadth of Dam : 28 foot. (8.534 Mts.)
Maximum base breadth of Dam : 320 foot. (97.536 Mts.)
Over-all breadth of road approach at top : 30 foot. 9 inch. (9.373 Mts)
Deepest foundation level : +196.00 Ft. (+59.741 Mts)
Average watercourse bed level : +245.00 Ft.(+74.676 Mts.)
Spillway crest level : +546.00 Ft. (+166.421 Mts.)
Top of crest gates : +590.00 Ft.(+179.832 Mts.)
Top of Dam : +605.00 Ft. (184.404 Mts.)
Invert level of flip bucket : +240.00 Ft. (73.15 Mts.)
Crest gates : 26 Nos. of size 45' x 44' (13.716 x 13.410m)
Chute sluices : 2 vents of size 10' x 25' with sill at +450' (137.16 Mts), Operable upto +549.00 foot Discharging seventeen,000 C/S at full gate gap.
Diversion Tunnel : 2 Vents of size 10' x 25', Operable upto +560.00 Ft, Discharging twenty,000 C/S at full gate gap.
Right Canal Head sluice : 9 vents of size 10' x 15' with sill At +489' (149.047 Mt.)
Left Canal Head sluice : 3 vents of size 10' x 25' with sill At +489' (149.047 Mt.)
EARTH DAM DETAILS:
Length of Left Earth Dam : 8400 foot. (2560.32 Mts.)
Length of Right Earth Dam : 2800 foot. (853.44 Mts.)
Total Length : 11,200 Ft. (3413.76 Mts.)
Maximum height : 85 Ft(25.908 Mts.)
Top width : 30 foot. 6" (9.296 Mts.)
Top level : +610 foot. (+185.928 Mts.)
POWER GENERATION:
Penstocks ( eight numbers) : 16.00 Ft. dia (4.88 Mts)
Centre line elevation : +405.00 ft.(+123.40 Mts.)
Main Power House :
1 no conventional : one0 MW capability,Discharging capability four,700 C/s
7 Nos. reversible : 100MW capability,Discharging capacity:4,300 C/S
Right Canal Power House: : Three Units-30MW every
Left Canal Power House : : Two Units-30MW every
Utilisation Of The Project
Irrigation
- The right canal (Jawahar canal) is 203 metric linear unit (126 mi) long with most 311.5 cumecs capability and irrigates one.117 million acres (4,520 km2) of land in Guntur and Prakasam districts.
- The left canal (Lal Bahadur Shastri canal) is 179 metric linear unit (111 mi) long with most 311.5 cumecs capability and irrigates one.008 million acres (4,080 km2) of land in Nalgonda, Suryapet, Krishna, West Godavari and Khamman districts. \
- The project remodeled the economy of higher than districts. fifty four villages (48 in Nalgonda and half dozen in Guntur) were submersed in water and twenty four,000 individuals were affected. The relocation of the individuals was completed by 2007.
Fishing in Sagar backwaters
Alimineti Madhava Reddy elevate irrigation canal attracts water from the Nagarjuna Sagar reservoir to irrigate zero.37 million acres (1,500 km2) of land in Nalgonda district. This elevate theme with pumping station set close to Puttamgandi village on the locality of Krishna stream additionally provides nearly twenty TMC water for the beverage wants of Hyderabad town. Nearly eightieth of the Nagarjuna Sagar water utilized in Hyderabad town is offered for irrigation use in Nalgonda district within the type of regenerated water/treated sewerage water. additionally, the high level flood flow canal drawing water from the left facet shore of the reservoir additionally provides irrigation water in Nalgonda district.
Power generation
- The electricity plant includes a power generation capability of 815.6 MW with eight units (1x110 MW+7x100.8 MW).
- initial unit was commissioned on seven March 1978 and eighth unit on twenty four Gregorian calendar month 1985. the proper canal plant includes a power generation capability of ninety megawatts (120,000 hp) with three units of thirty megawatts (40,000 hp) every.
- The left canal plant includes a power generation capability of sixty megawatts (80,000 hp) with two units of thirty MW every.
- The tail pool is underneath advanced stage of construction to place to use the pumped-up storage options of seven x a hundred.8 MW units. And it'll be helpful for the irrigation
Nagarjuna sagar dam power generation
Many times, it happens that power generation from the one hundred fifty MW canal based mostly units isn't optimised once the Nagarjuna Sagar reservoir is overflowing on its conduit and really less water is needed for irrigation from the canals throughout the monsoon floods. Power generation from canal based mostly hydro units may be optimised by running these units throughout the flooding amount by cathartic the water totally into the canals. The unwanted canal water may be discharged into the natural stream once it's crossing the foremost stream. therefore escape power may be generated from the water taking place unutilised into the stream by the canal based mostly power units additionally.
The water level within the Nagarjuna Sagar reservoir shall be maintained higher than the minimum level needed for these units in most of the time by cathartic water from the upstream Srisailam reservoir to optimise the facility generation from the canal based mostly units throughout season.
Tourism
Nagarjunasagar Dam is one amongst the popular weekend getaways from Hyderabad. Thousands of tourists visit Nagarjuna Sagar once the dam gates ar open in monsoon season (around Sep / October). edifice Vijay Vihar, operated by Telangana business is one amongst the simplest places for accommodation in Nagarjunasagar.
- There ar many different places around Nagarjuna Sagar which will be visited as a one-day trip from Hyderabad.
- Nagarjunakonda in Andhra Pradesh – has got to be reached by a ship from seafaring purpose operated by TSTDC or APTDC
- Anupu in Andhra Pradesh
- Ethipothala Falls close to Macherla in Andhra Pradesh – The water discharged from the Nagarjuna Sagar Right Bank canal, the Chandravanka and Surya Vanka streams keeps the water fall live or flowing throughout the rainy seaso
Environmental aspect
The artificial elevate irrigation based mostly diversion of the stream from its natural delta space into Nalgonda district caused erosion of the fluorine-rich volcanic rocks in Nalgonda and contaminated its groundwater offer. It additionally caused unsure flows of water into the Krishna stream delta space and a shrinkage of the natural surprise "The Kolleru Lake". the employment of abrasion resistant canals interfered with the natural silting method of a stream to the deltas and created long ecological problems to the health of the delta lands. Reduced flows into ocean|the ocean} resulted in land salinization and sea encroachment of coastal lands in Diviseema. The diversion of Krishna water for two hundred metric linear unit to Hyderabad resulted in large evaporation losses particularly in summer and reduced the scale of Krishna stream. several forest preserves on the natural Krishna flow ar currently categorised as "completely degraded" forest areas. Krishna stream once home to AN ecological wonderland of H2O fish and aquatic population is currently fully uninhabited. The stream stopped being passable since the year of Nagarjuna sagar construction.
Impact on Hyderabad water security
Water coming up with for Hyderabad town started in 1920 with the sound of Music stream for fifteen Mgd. It progressed to sound Esi (Himayat Sagar 1927 – 11mgd) and Manjira (1965–1993 – Majira and Singur dams) for an {additional|for one more} additional one hundred thirty Mgd. It took a large leap throughout 1995–2004 with the empowerment of Krishna stream exploitation (Phases I – III) at a complete value of over 10 thousand crores to produce an extra 190Mgd to Hyderabad from Nagarjuna sagar removed from the Krishna Delta and therefore the Kolleru lake.The project incurs an extra evaporation and discharge loss of sixty four Mgd. concerning half-hour of the water naturally flowing to Krishna Delta before 1995 is currently amused to Hyderabad.
Construction
The construction of Nagarjuna Sagar Dam started in 1956 tho' obstacles like the deficiency of funds hampered its progress. This semiconductor diode to the employment of stone in situ of concrete and to accelerate the development, a cement mill was created close to Guntur and a railway line was created to boost the property. the development of the dam was completed in 1969 and also the waters of the dam were used for the primary time in 1972. it's same that over forty five,000 to 70,000 staff participated within the construction of the dam.
Other Attractions
The Nagarjuna Sagar reservoir lies adjacent to the dam, that adds to the wonder of the dam. except the dam, there ar adjacent attractions like Nagarjunakonda Island that lies within the centre of the lake. it's the remnants of Buddhist settlement that was settled there as a results of the development of the dam. There ar launches that take you to the present place and it needs a forty minutes boat trip reach the Island. The guests may also visit Ethipothala waterfalls which offer a cascading impact and Srisailam life Reserve that lay within the locality of the dam.
It is not stunning if one feel oneself insignificant whereas standing before such a large structure. Hope this text familiarises you with this subject marvel.
How to reach Nagarjunasagar
by Air
The nearest International aerodrome from Nagarjuna-Sagar is Rajiv Gandhi International aerodrome, Hyderabad, roughly 3 hour drive from Nagarjuna-Sagar. The aerodrome is well connected to major cities like metropolis, Goa, Indore, Jaipur, Jammu, Kochi, Kolkata, Kozhikode, Madurai, Ahmedabad, Bangalore, Bombay and city via Air Asian nation, Indigo, Jet Airways, Jet Connect and Spice Jet.
by Rail
The nearest railroad station is Macherla railroad station, around twenty four Kms from Nagarjuna-Sagar. Macherla railroad station is well connected to major cities of province State.
by Road
Nagarjuna-Sagar is fifty five Kms from Devarakonda, sixty one Kms from Nalgonda, 107 Kms from Kodad, a hundred and fifty Kms from Guntur, 163 Kms from Hyderabad, 176 Kms from Tenali, 177 Kms from Duggirala, 184 Kms from Ongole, 191 Kms from Vijayawada, 237 Kms from Nandyal and is coupled via province State Road Transport Corporation (APSRTC) and a few personal travel services.
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