Ujani dam
| Ujani Dam Bhima Dam |
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View of Ujani or Bhima Dam and reservoir looking upstream
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 Location of Ujjani Dam and Reservoir in Maharashtra
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| Official name | Ujani Dam Bhima Dam |
| Location | Ujani, Madha Taluk, Solapur district |
| Coordinates | 18°04′26″N 75°07′12″E / 18.07389°N 75.12000°ECoordinates: 18°04′26″N 75°07′12″E / 18.07389°N 75.12000°E |
| Construction began | 1969 |
| Opening date | June 1980 |
| Construction cost | Rs 3295.85 million (1983–84) |
| Owner(s) | Government of Maharashtra, India |
| Operator(s) | Water Resources Department, Government of Maharashtra |
| Dam and spillways | |
| Type of dam | Composite: Earthfill/Gravity |
| Impounds | Bhima River |
| Height | 56.4 m (185 ft) |
| Length | 2,534 m (8,314 ft) |
| Width (crest) | 6.7 m (22 ft) |
| Dam volume | 3,320,000 m3 (4,340,000 cu yd) |
| Spillway type | Concrete |
| Spillway capacity | 15,717 m3/s (555,000 cu ft/s) |
| Reservoir | |
| Total capacity | 3,140,000,000 m3 (2,550,000 acre·ft) |
| Active capacity | 1,440,000,000 m3 (1,170,000 acre·ft) |
| Inactive capacity | 1,802,000,000 m3 (1,461,000 acre·ft) |
| Catchment area | 14,850 km2 (5,730 sq mi) |
| Surface area | 337 km2 (130 sq mi) |
| Power station | |
| Operator(s) | Government of Maharashtra |
| Type | Pumped-storage |
| Turbines | Reversible Pump Turbine |
| Installed capacity | 12 MW |
| Annual generation | 105 GWh initial years reducing to 21 GWh later as irrigation develops |
Ujjani Dam, also known as Bhima Dam or Bhima Irrigation Project, on the Bhima River, a tributary of the Krishna River, is an earthfill cum Masonry gravity dam located near Ujjani village of Madha Taluk in Solapur district of the state of Maharashtra in India.
The Bhima River, which originates in Bhimashankar of the Western Ghats, and forms the Bhima Valley with its tributary rivers and streams, has twenty-two dams built on it of which the Ujjani Dam is the terminal dam on the river and is the largest in the valley that intercepts a catchment area of 14,858 km2 (5,737 sq mi) (which includes a free catchment of 9,766 km2 (3,771 sq mi)). The construction of the dam project including the canal system on both banks was started in 1969 at an initial estimated cost of Rs 400 million and when completed in June 1980 the cost incurred was of the order of Rs 3295.85 million.
The reservoir created by the 56.4 m (185 ft) high earth cum concrete gravity dam on the Bhima River has a gross storage capacity of 3.320 km3 (0.797 cu mi). The annual utilization is 2.410 km3 (0.578 cu mi). The project provides multipurpose benefits of irrigation, hydroelectric power, drinking and industrial water supply and fisheries development. The irrigation supplies benefit 500 km2 (190 sq mi) of agricultural land, particularly in the Solapur district. Water supplied from the reservoir to irrigate agricultural areas primarily aims to reduce incidence of famines and scarcity during drought conditions. The reservoir operation also lessens threat due floods to cities such as Pandharpur (an important religious pilgrimage centre for the Hindus). As a result of irrigation facilities, some of the important crops grown under irrigated conditions are sugarcane, wheat, millet and cotton.
The Bhima River on which the Ujjani Dam has been built rises from Bhimashankar hills in the Western Ghats, also known as the Sahyadri hill range. The river flows for a length of 725 km (450 mi) till it meets the Krishna River (one of the two major river systems in Maharashtra, the other being the Godavari River) near Raichur in Raichur district in Karnataka .Bhima River Basin has many tributaries of which the major ones are the Kundali River, Kumandala River, Ghod river, Bhama River, Indrayani River, Mula River, Mutha River, Pavna River, Bori, Sina, Man, Bhogwati and Nira. The total drainage area of 48,631 km2 (18,777 sq mi) of Bhima River basin, an inter state river basin, covers both Maharashtra (75%) and Karnataka (25%) states, out of which 14,858 km2 (5,737 sq mi) drains into the Ujjani Reservoir created by the Ujjani Dam. The Upper Bhima River basin is subdivided into three zones namely northern, middle and southern, the main stem of the river is in the middle zone where the Bhima Dam is built, while the southern zone is dominated by five reservoirs. The basin above the dam has intense rural, agricultural, urban and industrial activities. The river basin, which has a slope from west to east has extreme physiographic and agro-climatic variations. The drainage basin has rich and fertile agricultural land, and several water resources development projects have been built on its river system. Government of Maharashtra has classified the stretches of the Upper Bhima River for the purpose of various uses as, A-I for drinking water without conventional treatment but after disinfection, A-II Drinking water after conventional treatment followed by disinfection, A-III for fish and wildlife propagation and A-IV for agriculture, industrial cooling and process. The dam and the reservoir are approachable from Pune city, which is 160 km (99 mi) away. The dam is about 5 mi (8.0 km) upstream of the bridge across the Bhima River on the Pune-Sholapur Road.
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