Bisalpur Dam

Bisalpur Dam
Name	Bisalpur Dam
Location	Tonk district, Rajasthan, India
Coordinates	26.0550°N 75.0170°E
Status	Operational
Construction	1999–2008
Opening	2008
Dam type	Earthen and masonry
Height	39.5 m
Length	1,067 m
Reservoir capacity total	1,013 million m3
River	Banas River
Owner	Rajasthan Water Resources Department

Bisalpur Dam Bisalpur Dam is a multipurpose reservoir on the Banas River in Tonk district, Rajasthan, India. The project provides drinking water to the urban agglomerations of Jaipur, Tonk, and surrounding municipalities while supporting irrigation in parts of Ajmer district and Bhilwara district. The scheme has been central to regional water policy debates involving agencies such as the Rajasthan Water Resources Department and national stakeholders like the Ministry of Jal Shakti.

Location and Overview

Bisalpur Dam is located near the village of Bisalpur in Tonk district on the course of the Banas River, a tributary of the Yamuna River basin. The catchment area extends into parts of Ajmer district and Bhilwara district, linking hydrology with terrain features of the Aravalli Range and plains that drain toward the Ganges River system. The reservoir created by the dam, often referred to as Bisalpur Reservoir, plays a role in regional water allocation frameworks involving cities such as Jaipur and institutions including the Rajasthan Urban Infrastructure Development Project.

History and Construction

The concept for a reservoir at Bisalpur dates to mid-20th-century regional planning initiatives, but formal approval accelerated in the 1990s amid drought concerns that affected districts like Tonk and Ajmer. Construction began in 1999 with engineering oversight from firms and agencies associated with the Central Water Commission and state contractors engaged by the Rajasthan Water Resources Department. Work progressed through phases addressing embankment raising, spillway construction, and ancillary works; the dam reached operational status in 2008 following commissioning that involved testing protocols from bodies such as the Bureau of Indian Standards and coordination with the Ministry of Water Resources.

Design and Specifications

The project is an earthen-cum-masonry structure with a maximum height of approximately 39.5 metres and a crest length near 1,067 metres. The reservoir’s gross storage capacity is in the order of 1,013 million cubic metres, with live storage allocated for municipal supply and irrigation releases governed by rules compatible with guidelines from the Central Ground Water Board and the National Water Policy (India). Flood management components include an ogee spillway and gated outlets sized to handle design flood estimates developed using methods endorsed by the Central Water Commission. Structural materials and workmanship followed codified standards such as those promoted by the Indian Roads Congress for related embankment access works.

Water Supply and Irrigation

Bisalpur’s primary municipal supply scheme channels treated water via a transmission network to Jaipur Municipal Corporation and other urban local bodies. Raw water from the reservoir is conveyed to treatment works where processes adhere to specifications by the Bureau of Indian Standards and oversight from the Ministry of Health and Family Welfare for potable standards. In agriculture, canal networks and distributary systems serve command areas in parts of Tonk, Ajmer, and Bhilwara, with cropping patterns influenced by allocations guided by policies from the Rajasthan State Agriculture Department and extension services linked to institutes such as the Agricultural Research Service.

Hydroelectric Power and Operations

While primarily conceived for drinking water and irrigation, the project includes provisions for small-scale hydropower—installed capacity and generation are modest compared with major hydroelectric stations administered by entities like the National Hydroelectric Power Corporation. Day-to-day reservoir operations, including release scheduling and maintenance, are managed by the Rajasthan Water Resources Department in coordination with supply agencies such as the Public Health Engineering Department (Rajasthan). Operational protocols take into account seasonal inflows from monsoon rains influenced by the Indian Meteorological Department and upstream catchment conditions monitored by the Central Water Commission.

Environmental and Social Impact

The creation of the reservoir altered land use patterns in areas previously occupied by villages, agricultural land, and riparian habitats, prompting resettlement and rehabilitation measures overseen by state agencies and social welfare programs like those defined under national rehabilitation norms. Environmental assessments considered impacts on biodiversity in the Banas River corridor, water quality changes, and downstream flow regimes, with mitigation proposals referencing guidance from the Ministry of Environment, Forest and Climate Change and local conservation bodies. Stakeholder responses included advocacy from civic groups in Jaipur and rural collectives in Tonk district emphasizing equitable allocation and ecological flows.

Management and Future Developments

Long-term management involves integrated watershed interventions, demand management for urban supplies in Jaipur, and modernization of irrigation delivery supported by schemes such as those funded under central initiatives administered by the Department of Water Resources, River Development and Ganga Rejuvenation. Proposals for capacity augmentation, catchment afforestation linked to programs like the National Afforestation Programme, and enhanced forecasting using services from the Indian Meteorological Department and remote sensing agencies remain under consideration. Institutional coordination among bodies including the Rajasthan Water Resources Department, Public Health Engineering Department (Rajasthan), and national ministries will shape future operational resilience and regional water security.

Category:Dams in Rajasthan