Koilsagar Dam (also known as Koil Sagar Reservoir) is a medium irrigation project located at Koilsagar (Bollaram) village in Devarakadra Mandal, Mahabubnagar district, Telangana. It is situated approximately 130 km from Hyderabad and 37 km from Mahabubnagar town. The project was constructed across the Peddavagu River, a tributary of the Krishna River, to provide irrigation to agricultural lands in the region.
The project has a gross storage capacity of approximately 2,276.52 million cubic feet (2.276 TMC) and was designed to provide irrigation to approximately 12,000 acres across 23 villages. The reservoir is situated in a picturesque landscape between two hills and is known for its water views and surrounding countryside.
The construction history has two reported timelines. The Mahabubnagar District Administration describes the project as having been constructed during 1945–1948 under the Nizam government, while technical records of the Krishna River Management Board give 1949 as the commencement year and 1955 as the completion year.
A reservoir surrounded by hills: Koilsagar Dam was developed primarily to support irrigation in the drought-prone agricultural areas of the former Mahabubnagar region. The reservoir occupies a scenic location between two hills along the Peddavagu River. Its landscape and water views make it an interesting destination for visitors exploring the countryside around Mahabubnagar.
Fisheries and aquatic resources: Koilsagar Reservoir has a documented history of organized fisheries activity. A fishermen's cooperative society was established in 1977, and the Fisheries Department introduced a licensing system in 1990. Fish stocking and reservoir fisheries have contributed to local livelihoods.
A visit near Koilkonda: Koilsagar Dam is located in the wider Koilkonda region and can be included in a trip exploring the historical and natural attractions of Mahabubnagar district. Visitors should check local access conditions before planning a combined visit with Koilkonda Fort.
Visitor Information
Location and Access
Koilsagar Dam
Koilsagar (Bollaram) Village,
Devarakadra Mandal,
Mahabubnagar District, Telangana.
Distance from Hyderabad: Approximately 130 km by road, according to the district administration.
Distance from Mahabubnagar: Approximately 37 km.
Nearest railway station: Devarakadra Railway Station, approximately 12 km away.
Enquiries
Project authority: Irrigation and Command Area Development Department, Government of Telangana.
For current access restrictions, visitor arrangements and project-related information, contact the local Irrigation Department or Mahabubnagar district administration.
Official Information
Mahabubnagar District Administration – Dams and Koilsagar Project
Timings, Entry and Best Season
Timings: No independently confirmed public visiting schedule is available. Access may depend on irrigation operations and departmental restrictions.
Entry Fee: No verified current entry-fee information is available. Confirm locally before visiting.
Boating: No officially confirmed public boating facility. Do not assume boat rides are available.
Fishing: The reservoir has a documented fisheries management system. Recreational fishing permission should be confirmed with the Fisheries Department.
Best Season: October–March is generally more comfortable for exploring the surrounding countryside. Reservoir water levels vary with rainfall and irrigation requirements.
Visitor Note
Koilsagar is primarily an irrigation project, not a developed commercial tourist destination. Confirm access arrangements before travelling. Carry drinking water, food and other essentials, and follow instructions issued by project authorities.
History – A Nizam-Era Irrigation Project
Koilsagar Dam was developed during the period of the former Hyderabad State under the rule of the Nizams. The Mahabubnagar District Administration describes the project as having been constructed during 1945–1948, under the government of the 7th Nizam, Mir Osman Ali Khan.
However, the technical records of the Krishna River Management Board (KRMB) list 1949 as the year of commencement and 1955 as the year of completion. A fisheries research paper published in 2014 also reports that construction began in early 1949 and was completed in December 1955.
These differing timelines should be understood as differences between the historical description published by the district administration and the construction dates recorded in technical sources.
The project was developed across the Peddavagu River, a tributary of the Krishna, to improve irrigation in the agricultural areas of the former Mahabubnagar district. It is classified as a medium irrigation project.
Project Specifications and Irrigation Benefits
According to the Krishna River Management Board, Koilsagar is an important medium irrigation project in the Krishna River basin.
- Project: Koilsagar Medium Irrigation Project.
- Location: Koilsagar (Bollaram) village, Devarakadra Mandal, Mahabubnagar district.
- River: Peddavagu, a tributary of the Krishna River.
- Gross storage capacity: 2,276.52 million cubic feet (approximately 2.276 TMC).
- Water utilisation: 2,115.55 million cubic feet, as listed in KRMB project specifications.
- Designed irrigation ayacut: 12,000 acres.
- Villages benefited: 23.
- Mandals benefited: Devarakadra, Chinna Chintakunta, Dhanwada and Koilkonda.
- Left flank canal: Designed to serve approximately 3,000 acres.
- Right flank canal: Designed to serve approximately 9,000 acres.
The designed ayacut represents the project's intended irrigation coverage. Actual irrigation depends on rainfall, reservoir inflows, water availability and operational conditions.
Fisheries and Reservoir Ecology
Koilsagar Reservoir has a documented history of organized inland fisheries. Research published in the International Journal of Fisheries and Aquatic Studies in 2014 describes the development of fisheries management at the reservoir.
According to the research paper:
- A fishermen's cooperative society was organized in 1977 under the name Koilsagar Reservoir Fishermen Cooperative Society.
- Regular fishing activities were subsequently organized through the cooperative.
- The State Fisheries Department introduced a licensing system at the reservoir in 1990.
- The Fisheries Department supported fish production through periodic stocking of major carp seed.
- Local reservoir fishermen also undertook carp fingerling stocking and other fisheries-related activities.
This history demonstrates the reservoir's importance to local fisheries and livelihoods. Visitors interested in fishing should contact the Fisheries Department to confirm current licensing requirements and permitted activities. The historical existence of fishing operations does not automatically grant visitors permission to fish.
Things to See and Do at Koilsagar
Reservoir views: The reservoir is situated in a picturesque landscape between two hills. Visitors can appreciate the surrounding countryside from areas where public access is permitted.
Photography: The water, surrounding hills and changing light provide opportunities for landscape photography. Avoid entering restricted operational areas or approaching unsafe edges.
Nature observation: Reservoir environments can attract waterbirds and other wildlife. Sightings depend on season, water levels and local conditions. Visitors interested in birdwatching should carry binoculars and avoid disturbing wildlife.
Fisheries history: The documented cooperative fishing system and fish-stocking programme provide an additional point of interest for visitors interested in rural livelihoods and inland fisheries.
Picnicking: Visitors should use only areas where public access is permitted. Do not assume that the reservoir shoreline or dam premises are approved picnic or recreation areas.
Dam Operations and Visitor Access
Koilsagar Dam is an active irrigation project under the jurisdiction of the Government of Telangana's Irrigation Department. Its primary purpose is water storage and agricultural irrigation rather than tourism.
The dam includes reservoir and canal infrastructure used for irrigation. Access to the dam structure, operational areas and other project facilities may be restricted for safety and administrative reasons.
The Mahabubnagar District Administration reports a guest house near the project that provides views of the reservoir. However, its present operational status and public accommodation availability should be confirmed with the district administration before making plans.
Visitors should not enter restricted areas, climb operational structures, swim in the reservoir or undertake boating and camping without explicit permission from the relevant authorities.
Carry all essential supplies and dispose of waste responsibly. Follow instructions from irrigation personnel and local authorities.
How to Reach Koilsagar Dam
By Road from Hyderabad: Koilsagar Dam is approximately 130 km from Hyderabad, according to the Mahabubnagar District Administration. Travel towards Mahabubnagar and continue towards Devarakadra and Koilsagar village. Check a current navigation route before departure.
From Mahabubnagar: The reservoir is approximately 37 km from Mahabubnagar town. Local road transport can be arranged from the town, subject to availability.
By Rail: Devarakadra Railway Station is the nearest railway station mentioned by the district administration, approximately 12 km from the project. From there, arrange local transport towards Koilsagar.
By Air: Rajiv Gandhi International Airport in Hyderabad is the nearest major airport. Continue towards Mahabubnagar and Devarakadra by road.
Local access: Confirm the final approach road and access to the reservoir with local authorities before travelling. The nearest railway station and town distances are approximate reference figures rather than guaranteed current road-route distances.
Suggested 1-Day Visit from Hyderabad
Morning: Depart Hyderabad and travel towards Mahabubnagar district.
Late Morning: Explore Koilkonda Fort, subject to local access and trekking conditions.
Afternoon: Travel towards Koilsagar village and check whether public access to the reservoir viewpoint is permitted.
Late Afternoon: Enjoy the surrounding countryside and reservoir views from permitted locations.
Evening: Begin the return journey towards Hyderabad.
Note: This is a suggested regional sightseeing plan, not an officially organized itinerary. Actual travel time, fort access and dam access should be checked locally. The route distance between Koilkonda Fort and Koilsagar Dam should be verified before planning the combination.
Facilities and What to Carry
- Visitor facilities: The district administration reports a guest house near the project. Confirm its present availability and access arrangements before visiting.
- Water and food: Carry drinking water and snacks. Do not assume that food outlets are available at the reservoir.
- Sun protection: Sunscreen, a hat and sunglasses are advisable, particularly during the hotter months.
- Footwear: Comfortable footwear is recommended for walking in the surrounding countryside.
- Binoculars: Useful for observing birds and wildlife from permitted areas.
- Photography: Respect restrictions around irrigation structures and operational facilities.
- Responsible visiting: Do not litter, disturb wildlife or damage the reservoir surroundings.
- Safety: Avoid swimming, entering the water, climbing dam structures or approaching restricted areas.
Who Should Visit Koilsagar?
- Travellers interested in Telangana's irrigation history.
- Visitors exploring the historical attractions of Mahabubnagar district.
- Nature enthusiasts interested in reservoir landscapes.
- Photographers interested in water and countryside scenery.
- Students and researchers interested in irrigation projects and inland fisheries.
- Visitors combining a regional trip with Koilkonda Fort and other nearby attractions.
Koilsagar is primarily an operational irrigation reservoir. Visitors should check accessibility and available facilities before planning a recreational visit.
Important Notes for Travellers
- Location: Koilsagar (Bollaram) village, Devarakadra Mandal, Mahabubnagar district.
- Access: Public access may be subject to irrigation department restrictions and operational requirements.
- Entry fee: Current entry-fee arrangements have not been independently confirmed.
- Boating: No verified official public boating facility. Do not assume boat rides are available.
- Fishing: The reservoir has a documented licensing system. Contact the Fisheries Department before attempting fishing.
- Camping: Do not camp on the reservoir premises without permission from the authorities.
- Food and water: Carry essential supplies and do not depend on commercial facilities being available at the project.
- Weather: October–March is generally more comfortable for exploring the district. Summer temperatures can be high.
- Safety: Follow all warning signs and instructions issued by irrigation personnel.
Important Visitor Note
Koilsagar Dam is a medium irrigation project and an important reservoir in the Peddavagu River system. It is not a fully developed commercial tourist destination. The project is managed for irrigation, and access to its structures and surrounding areas may be restricted. Confirm current visitor arrangements with local authorities before travelling. Do not assume that boating, recreational fishing, camping or overnight stays are permitted.
How to Reach the Key Points
Koilsagar Dam
Located at Koilsagar (Bollaram) village in Devarakadra Mandal, approximately 37 km from Mahabubnagar town. The project is situated across the Peddavagu River.
Koilkonda Fort
A historic hilltop fort near Koilkonda village in Mahabubnagar district. Check the current road route and trekking conditions before combining it with a visit to Koilsagar.
Devarakadra Railway Station
The nearest railway station identified by the Mahabubnagar District Administration, approximately 12 km from Koilsagar Dam.
By Air
Rajiv Gandhi International Airport, Hyderabad, is the nearest major airport. Continue towards Mahabubnagar and Devarakadra by road.
Top Attractions in Mahabubnagar and Surrounding Districts
Location Map
Koilsagar Dam: Koilsagar (Bollaram) village, Devarakadra Mandal, Mahabubnagar district, Telangana.
The project is approximately 130 km from Hyderabad and 37 km from Mahabubnagar town, according to the district administration. Devarakadra Railway Station is approximately 12 km away. Confirm the final road route and visitor access before travelling.
References
- Mahabubnagar District Administration – Dams and Koilsagar Dam – Official historical description, location, distances and visitor information.
- Krishna River Management Board – Koilsagar Project – Technical project specifications, construction commencement and completion years, storage capacity and irrigation details.
- Krishna River Management Board – Koil Sagar Lift Irrigation Scheme – Project background, irrigation coverage and reservoir capacity.
- International Journal of Fisheries and Aquatic Studies (2014) – Augmentation of Fish and Prawn Production from Koilsagar Reservoir – Construction history, fishermen's cooperative and licensing system.
- Central Water Commission – Summary Report on Water Use Efficiency – Project classification, location and river basin information.
Historical descriptions, technical specifications and visitor arrangements may differ between sources. Access, accommodation and recreational activities should be confirmed with the relevant authorities before travelling.
Key Facts at a Glance
Koilsagar Dam (Koil Sagar Reservoir)
Koilsagar (Bollaram) village, Devarakadra Mandal, Mahabubnagar District, Telangana
District administration reports 1945–1948; KRMB records 1949–1955
Peddavagu River, a tributary of the Krishna
Medium irrigation project
2,276.52 million cubic feet (approximately 2.276 TMC)
12,000 acres
23 villages
Devarakadra, Chinna Chintakunta, Dhanwada and Koilkonda
Approximately 130 km (district administration figure)
Approximately 37 km
Devarakadra, approximately 12 km
Organized cooperative fisheries documented since 1977; licensing system introduced in 1990
Subject to project operations and departmental restrictions
October–March for generally comfortable weather
Reported by the district administration; current availability needs confirmation
Frequently Asked Questions
Q: Where is Koilsagar Dam located?
A: Koilsagar Dam is located at Koilsagar (Bollaram) village in Devarakadra Mandal, Mahabubnagar district, Telangana.
Q: How far is Koilsagar Dam from Hyderabad?
A: The Mahabubnagar District Administration gives the distance as approximately 130 km by road.
Q: How far is Koilsagar Dam from Mahabubnagar?
A: It is approximately 37 km from Mahabubnagar town, according to the district administration.
Q: When was Koilsagar Dam constructed?
A: The district administration describes the project as constructed during 1945–1948. KRMB technical records list 1949 as the commencement year and 1955 as the completion year.
Q: Which river does Koilsagar Dam impound?
A: The dam is constructed across the Peddavagu River, a tributary of the Krishna River.
Q: What is the storage capacity of Koilsagar Reservoir?
A: Its gross storage capacity is approximately 2,276.52 million cubic feet, equivalent to about 2.276 TMC.
Q: What is the irrigation capacity of Koilsagar Project?
A: The project was designed to provide irrigation to approximately 12,000 acres across 23 villages.
Q: Is Koilsagar Dam a major or medium irrigation project?
A: It is classified as a medium irrigation project.
Q: Can visitors go boating at Koilsagar Dam?
A: No officially confirmed public boating facility has been established. Visitors should not assume boat rides are available.
Q: Is fishing allowed at Koilsagar Reservoir?
A: The reservoir has a documented fisheries licensing system. Visitors should contact the Fisheries Department to confirm current permissions and requirements.
Q: Is there accommodation near Koilsagar Dam?
A: The district administration reports a guest house near the project. Its current operating status and availability should be confirmed before visiting.
Q: What is the nearest railway station?
A: Devarakadra Railway Station, approximately 12 km from the project.
Q: What is the best time to visit Koilsagar Dam?
A: October–March is generally more comfortable for exploring the surrounding countryside. Check reservoir access and local conditions before travelling.
Conclusion – An Important Irrigation Project in Mahabubnagar
Koilsagar Dam is an important medium irrigation project in Mahabubnagar district, constructed across the Peddavagu River in the Krishna basin. Its Nizam-period origins, substantial reservoir capacity and contribution to agriculture make it significant in the region's irrigation history.
The project was designed to irrigate approximately 12,000 acres across 23 villages. Its documented fisheries history also highlights the reservoir's importance to local livelihoods. Situated in a picturesque landscape between two hills, Koilsagar offers an opportunity to appreciate the engineering and natural surroundings of the Mahabubnagar region. Visitors should remember that it remains an operational irrigation project and check access arrangements before planning a visit.
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