Donkarayi Dam, Reservoir & Power House Details

Donkarayi Dam is located in the Godavari river of Andhra Pradesh. The dam is mainly used for the purpose of hydroelectric project, domestic supply of drinking water and Irrigation. The salient features of Donkarayi Dam, Donkarayi Power House and Donkarayi Hydroelectric project is listed below.

Salient features of Donkarayi Dam:

1. Name of Dam – Donkarai ( S.H.E.S)

2. River – Sileru

3. Nearest City – Malkangiri

4. District – Malkangiri

5. State – Andhra Pradesh

6. Basin – Godavari

7. Status – Completed

8. Purpose of Dam – Hydroelectric, Irrigation

9. Year of Commencement – 1968

10. Year of Completion – 1983

11. Operating & Maintainance Agency – APGENCO

12. Dam as per Parliamentary Constituency – Nabarangapur

13. Seismic Zone - Seismic Zone-II

14. Type of Dam – Gravity & Masonry

15. Length of Dam (m) – 1398

16. Max Height above Foundation (m) – 71

17. Total Volume Content of Dam (TCM) – 2038

18. Design Flood (cumec) – 15593

19. Length of Spillway (m) – 598.7

20. Crest Level of Spillway (m) – 303.89

21. Spillway Capacity (cumec) – 15593

22. Type of Spillway Gates – Radial

23. No. of Spillway Gates – 12

24. Size of Spillway Gates (m x m) – 12.50 x 12.19

Salient features of Donkarayi Power House:

1. Name of Powerhouse – Donkarayi Power House

2. Reservoir - Donkarai ( S.H.E.S) Reservoir

3. State – Andhra Pradesh

4. Basin – Godavari

5. Hydroelectric Basin – East Flowing Rivers

6. Seismic Zone – Seismic Zone-II

7. Hydroelectric Development Type – Storage

8. Structure Type – Dam

9. Position of Powerhouse – Dam Toe

10. Status of Powerhouse – Operational

11. Completion Year – 1983

12. Pumped Storage – No

13. Net Maximum/ Minimum Head– 30.78/8.33 m

14. MDDL for Powerhouse - 291.2 m

15. Annual Design Energy (MU) – 136

16. Firm Power (MW) – 18

17. No. of Turbines – 1

18. Capacity per Turbine (MW) – 25

19. Total Installed Capacity (MW) – 25

20. Head Class of Turbine – Low (Less than 15 m)

21. Type of Turbine – Kaplan

22. Turbine Make – BHEL India

23. Rated Head (m) – 21

24. Rated Speed (rpm) – 136.4

25. Generator Make – BHEL India

26. No. of Penstock – 1

27. Penstock Size (m), Internal Diameter- 6

28. Design Discharge through each Penstock, Flow - 123 cumec

Salient features of Donkarayi Hydroelectric Project:

1. Hydroelectric Project Name - Donkarayi Hydroelectric Project

2. State – Andhra Pradesh

3. River – Sileru

4. Basin – Godavari

5. Hydroelectric Region – Southern Hydroelectric Region

6. Total Installed Capacity (MW) – 25

7. Type of Project – Small (3-25 MW)

8. Hydroelectric Project Status – Completed

9. Purpose – Hydroelectric

10. Owner – State

11. Owner Name – APGENCO

12. Interbasin – No

13. Project Sharing – None

14. Intercountry – None